阅读说明：本技术 由离散颗粒定制的个人护理产品及其施用方法 (Personal care products customized from discrete particles and methods of applying same ) 是由 横木纯一 A·威瑟斯顿 于 2019-10-09 设计创作，主要内容包括：本发明公开了一种由混合物组合物的一个或多个固体离散颗粒定制的个人护理产品,其中混合物组合物包含表面活性剂和高熔点脂肪族化合物,并且其中混合物组合物包含小于约50％的水。本发明还公开了一种将此类定制的个人护理产品施用到目标表面的方法。本发明提供了以下有益效果中的至少一种：增强流变性,尤其是储能模量(G’)；增强调理有益效果；增加新的有益效果,诸如美学有益效果、去头皮屑有益效果、如加热/凉爽的感觉、以及香味；以及提供上述有益效果中的至少一种,同时具有改善的稳定性。(A personal care product customized from one or more solid discrete particles of a blend composition, wherein the blend composition comprises a surfactant and a high melting point fatty compound, and wherein the blend composition comprises less than about 50% water. Also disclosed is a method of applying such customized personal care products to a target surface. The invention provides at least one of the following beneficial effects: enhancement of rheology, especially storage modulus (G'); enhancing conditioning benefits; adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and scents; and to provide at least one of the above benefits while having improved stability.)

1. A personal care product, the personal care product comprising:

one or more solid discrete particles of a blend composition, wherein the blend composition comprises a surfactant and a high melting point fatty compound, and wherein the blend composition comprises less than about 50% water;

a container containing the discrete particles; and

instructions for use, the instructions for use comprising descriptions corresponding to the steps of:

(i) mixing an aqueous personal care composition with the solid discrete particles to produce a customized personal care product; and

(ii) applying the customized personal care product to a target surface.

2. The personal care product of claim 1, wherein the mixture composition preferably comprises less than about 25%, more preferably less than about 15%, still more preferably less than about 10%, even more preferably less than about 8% water.

3. The product of any one of the preceding claims, wherein the instructions are free of:

a description corresponding to the step of heating any of the discrete particles, the aqueous personal care composition, and the customized personal care product; and/or

(ii) subjecting the temperature of any of the discrete particles, the aqueous personal care composition and the customized personal care product to a description of greater than 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

4. The product of any of the preceding claims, wherein the instructions further comprise:

a description of limiting heating of any of the discrete particles, the aqueous personal care composition, and the customized personal care product; and/or

Limiting the temperature of any of the discrete particles, the aqueous personal care composition, and the customized personal care product to a temperature in excess of 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

5. The product of any of the preceding claims, wherein the aqueous personal care composition is an aqueous personal care composition owned or purchased by a user.

6. The product of any of the preceding claims, wherein the discrete particles are uncoated or encapsulated.

7. The product of any of the preceding claims, wherein the surfactant contained in the discrete particles is hydrophobic.

8. The product according to any one of the preceding claims, wherein the surfactant comprised in the solid discrete particles is selected from the group consisting of: a cationic surfactant, a nonionic surfactant, and mixtures thereof, more preferably wherein the surfactant contained in the discrete particles is a cationic surfactant.

9. The product according to any of the preceding claims, wherein the solid discrete particles further comprise a benefit agent selected from silicone compounds; a fragrance; an aesthetic benefit agent; a sensate; an anti-dandruff agent; an incompatible agent that is incompatible with at least one of the personal care composition, the packaging, and any other environmental factors; and mixtures thereof.

10. The product according to any preceding claims, wherein the personal care composition is selected from the group consisting of hair care compositions, body care compositions, facial skin care compositions, and mixtures thereof, preferably wherein the product composition is a hair care composition.

11. The product of any preceding claim, wherein the aqueous personal care composition is substantially free of detersive surfactant selected from the group consisting of anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof.

12. A method of applying a customized personal care product, the method comprising the steps of:

(i) mixing an aqueous personal care composition with one or more solid discrete particles of a mixture composition to produce a customized personal care product, wherein the mixture composition comprises a surfactant and a high melting point fatty compound, and wherein the mixture composition comprises less than about 50% water; and

(ii) applying the customized personal care product to a target surface.

13. The method of claim 12, wherein the mixture composition preferably comprises less than about 25%, more preferably less than about 15%, still more preferably less than about 10%, even more preferably less than about 8% water.

14. The method according to any one of claims 12 and 13, wherein the method is free of a step of bringing the temperature of any one of the discrete particles, the aqueous personal care composition, and the customized personal care product to more than 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

15. The method of any one of claims 12 to 14, wherein the discrete particles are uncoated or encapsulated.

16. The method of any one of claims 12 to 15, wherein the surfactant contained in the discrete particles is hydrophobic.

17. The method according to any one of claims 12 to 16, wherein the surfactant comprised in the solid discrete particles is selected from the group consisting of: a cationic surfactant, a nonionic surfactant, and mixtures thereof, more preferably wherein the surfactant contained in the discrete particles is a cationic surfactant.

18. The method according to any one of claims 12 to 17, wherein the solid discrete particles further comprise a benefit agent selected from silicone compounds; a fragrance; an aesthetic benefit agent; a sensate; an anti-dandruff agent; an incompatible agent that is incompatible with at least one of the personal care composition, the packaging, and any other environmental factors; and mixtures thereof.

19. The method of any one of claims 12 to 18, wherein the personal care composition is selected from the group consisting of hair care compositions, body care compositions, facial skin care compositions, and mixtures thereof, preferably wherein the product composition is a hair care composition.

20. The method of any one of claims 12 to 19, wherein the aqueous personal care composition is substantially free of a detersive surfactant selected from the group consisting of anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof.

Technical Field

The present invention relates to personal care products customized from one or more solid discrete particles of a mixture composition, wherein the mixture composition comprises a surfactant and a high melting point fatty compound, and wherein the mixture composition comprises less than about 50% water. The present invention also relates to methods of applying such customized personal care products to a target surface. The invention provides at least one of the following beneficial effects: enhancement of rheology, especially storage modulus (G'); enhancing conditioning benefits; adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and scents; and to provide at least one of the above benefits while having improved stability.

Background

Various methods have been developed to condition hair. One common method of providing conditioning benefits is through the use of conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof. Most of these conditioning agents are known to provide various conditioning benefits.

For example, U.S. patent application publication 2003/0103923 from SAN-EI KAGAKU relates to alcohol-containing compositions for blending in hair treatments, and hair conditioners made from hair treatments. The SAN-EI publication discloses a variety of such compositions for blending in hair treatment agents, including compositions comprising fatty alcohols and cationic surfactants, for example, in examples 100 to 110. The SAN-EI publication also discloses hair conditioners prepared by using such compositions for blending, for example, in examples 112 to 118.

In examples 112 to 117 of the SAN-EI publication, the compositions for blending (examples 102, 103, 104 and 106) were heated to 80 ℃ or more and then mixed mainly with water to prepare hair conditioners. The compositions used therein for blending (examples 102, 103, 104 and 106) comprise a high percentage of liquid material (e.g., 27% propylene glycol in example 102, 47% liquid petrolatum in example 103, 43% glycerin and 18% liquid petrolatum in example 104, and 28% glycerin in example 106) along with fatty alcohol and cationic surfactant.

In example 118 of the SAN-EI publication, the composition for blending (example 111) was added to an emulsion cooled to below 40 ℃, wherein the emulsion had water and an additive composition comprising a cationic surfactant and a fatty alcohol, and was additionally mixed with water to prepare a hair conditioner. The composition used for blending (example 111) contained ethanol, cationic surfactant and more than 80% water, and no fatty alcohol.

The SAN-EI publication also discloses the preparation of hair conditioners in examples 150 to 156. In examples 150 to 154, the compositions for blending (examples 123, 126, 127, 130, 133 and 134) were heated to above 80 ℃ and added to water, which was also heated to above 80 ℃, and emulsified and cooled to prepare hair conditioners. The compositions used for blending (examples 123, 126, 127, 130, 133 and 134) comprise a cationic surfactant and a fatty alcohol, and also comprise from 15% to 20% of a liquid oil (in examples 123, 130 and 133) or from 6% to 8% of a polyoxyethylene ester (in examples 126, 127 and 134).

Another example may be U.S. patent application publication 2003/223952 from P & G, which relates to a method for preparing a cleaning composition that includes (a) combining a fatty alcohol and a surfactant in a premix at a temperature sufficient to allow the surfactant to partition into the fatty alcohol, (b) cooling the mixture to below the chain melt temperature of the premix to form a gel network, (c) adding the gel network to a detersive surfactant and an aqueous carrier to form the cleaning composition. The P & G publication discloses in paragraphs [0186] to [0190] embodiments that use such a gel network comprising a fatty alcohol and a cationic surfactant.

Further, U.S. patent application publication 2016/143827 from Kao discloses a composition that is solid at room temperature and wherein the water content is 10% by weight or less, and a hair conditioner composition prepared by dispersing the solid composition in water at moderate temperatures. European patent application publication 2394632 from Shiseido discloses hair conditioner compositions having a very low water content, and thus hair conditioner compositions can be easily and simply manufactured by dilution with water.

However, there remains a need to provide customized personal care compositions to provide at least one of the following benefits:

-enhancement of rheology, in particular storage modulus (G') and/or enhancement of rich conditioning perception/sensation, preferably independent of the use of thickening polymers.

-enhancing conditioning benefits

-adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and fragrances

-providing at least one of the above benefits while having improved stability, especially when incompatible components are included, and/or while not causing adverse interactions with personal care compositions, packaging and any other environmental factors.

None of the prior art provides all of the advantages and benefits of the present invention.

Disclosure of Invention

The present invention relates to a personal care product comprising:

one or more solid discrete particles of a blend composition, wherein the blend composition comprises a surfactant and a high melting point fatty compound, and wherein the blend composition comprises less than about 50% water; and

a container containing discrete particles;

instructions for use, the instructions for use comprising descriptions corresponding to the steps of:

(i) mixing an aqueous personal care composition with solid discrete particles to produce a customized personal care product; and

(ii) the customized personal care product is applied to a target surface.

The present invention also relates to a method of applying a customized personal care product, the method comprising the steps of:

(i) mixing an aqueous personal care composition with one or more solid discrete particles of a mixture composition to produce a customized personal care product, wherein the mixture composition comprises a surfactant and a high melting point fatty compound, and wherein the mixture composition comprises less than about 50% water; and

(ii) the customized personal care product is applied to a target surface.

The invention provides at least one of the following beneficial effects:

-enhancement of rheology, in particular storage modulus (G') and/or enhancement of rich conditioning perception/sensation, preferably independent of the use of thickening polymers.

-enhancing conditioning benefits

-adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and fragrances

-providing at least one of the above benefits while having improved stability, especially when incompatible components are included, and/or while not causing adverse interactions with personal care compositions, packaging and any other environmental factors.

None of the prior art provides all of the advantages and benefits of the present invention.

These and other features, aspects, and advantages of the present invention will become better understood upon reading the following description and appended claims.

Detailed Description

While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description.

By "comprising" herein is meant that other steps and other ingredients may be added that do not affect the end result. The term encompasses the terms "consisting of … …" and "consisting essentially of … …".

All percentages, parts and ratios are based on the total weight of the composition of the present invention, unless otherwise specified. All such weights as they pertain to listed ingredients are based on the active level and, therefore, do not include carriers or by-products that may be included in commercially available materials.

As used herein, "mixture" is meant to include simple combinations of substances as well as any compound that can be produced from a combination thereof.

As used herein, "molecular weight" refers to weight average molecular weight unless otherwise specified. Molecular weight was measured using industry standard methods, gel permeation chromatography ("GPC").

Product with instructions for use/method of applying a customized personal care composition

The personal care products of the present invention include:

one or more solid discrete particles of a blend composition, wherein the blend composition comprises a surfactant and a high melting point fatty compound, and wherein the blend composition comprises less than about 50% water; and

a container containing discrete particles;

instructions for use, the instructions for use comprising descriptions corresponding to the steps of:

(i) mixing an aqueous personal care composition with solid discrete particles to produce a customized personal care product; and

(ii) the customized personal care product is applied to a target surface.

In the present invention, it is preferable that the description does not contain:

a description of steps corresponding to any of the discrete particles, the aqueous personal care composition, and the customized personal care product; and/or

The temperature of any of the discrete particles, the aqueous personal care composition, and the customized personal care product is allowed to exceed the description of 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

In the present invention, it is preferable that the description further includes:

a description of limiting heating of any of the discrete particles, the aqueous personal care composition, and the customized personal care product; and/or

Limiting the temperature of any of the discrete particles, the aqueous personal care composition, and the customized personal care product to exceed the description of 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

The method of the present invention is a method of applying a customized personal care product, the method comprising the steps of:

(i) mixing an aqueous personal care composition with one or more solid discrete particles of a mixture composition to produce a customized personal care product, wherein the mixture composition comprises a surfactant and a high melting point fatty compound, and wherein the mixture composition comprises less than about 50% water; and

(ii) the customized personal care product is applied to a target surface.

In the present invention, it is preferred that the process is free of a step of bringing the temperature of any of the discrete particles, the aqueous personal care composition and the customized personal care product above 65 ℃, more preferably 60 ℃, still more preferably 55 ℃, even more preferably 50 ℃, still preferably 45 ℃.

The instructions may also include descriptions corresponding to the steps of: waiting from about 1 minute to about 1 day after mixing and before applying the customized personal care composition to the hair, preferably waiting from about 1 minute to about 1 night, more preferably from about 1 minute to about 3 hours, still more preferably from about 1 minute to about 1 hour after mixing and before applying. The method of applying the customized personal care composition may further comprise the steps described above.

The instructions may also include a description suggesting the amount of solid discrete particles to be used, such as from about 0.1g to about 10g of solid discrete particles for 100ml of personal care composition, preferably from about 0.1g to about 7g, more preferably from about 0.1g to about 5g of solid discrete particles for 100ml of personal care composition, or one container of solid discrete particles for 1 bottle of personal care composition. The above amounts of use may also be applied in a method of applying a customized personal care composition.

The customized personal care product is applied to a target surface. The target surface is an appropriate part selected from hair, body and/or face depending on the type of product and/or composition.

Aqueous personal care compositions

The aqueous personal care composition to be mixed with the solid discrete particles preferably:

selected from: hair care compositions, body care compositions, facial skin care compositions, and mixtures thereof, preferably hair care compositions;

is an aqueous personal care composition owned or purchased by a user; and/or

Substantially free of detersive surfactant selected from the group consisting of: anionic surfactants, zwitterionic surfactants, amphoteric surfactants, and combinations thereof.

The instructions may also include descriptions corresponding to at least one of these aspects independently or all of these aspects simultaneously.

In the present invention, "the composition is substantially free of detersive surfactant" means: the composition is free of detersive surfactant; alternatively, if the aqueous personal care composition comprises a detersive surfactant, the level of such detersive surfactant is very low. In the present invention, the total level of such detersive surfactants, if included, is preferably 0.1% or less, more preferably 0.05% or less, still more preferably 0.01% or less, by weight of the aqueous personal care composition. Most preferably, the total level of such detersive surfactants is 0% by weight of the composition.

Aqueous personal compositions comprise an aqueous carrier. Aqueous carriers useful in the present invention include water and aqueous solutions of lower alkyl alcohols. Lower alkyl alcohols useful herein are monohydric alcohols having from 1 to 6 carbons, more preferably ethanol and isopropanol. Preferably, the aqueous carrier is substantially water. Preferably deionized water is used. Water from natural sources containing mineral cations may also be used depending on the desired characteristics of the product. Generally, the aqueous carrier may be included in the personal care composition at a level of from about 40% to about 99%, more preferably from about 50% to about 95%, still more preferably from about 70% to about 95%, even more preferably from about 80% to about 95% by weight of the composition, from a suitable amount to 100% of the composition.

Preferably the aqueous personal care composition comprises at least one of: cationic surfactants, nonionic surfactants, polymers, and mixtures thereof, more preferably cationic surfactants, still more preferably cationic surfactants and high melting point fatty compounds. The polymer may be a water-soluble polymer, such as a water-soluble thickening polymer and/or a water-soluble styling polymer.

Water-soluble polymers

The aqueous personal care composition may comprise, for example, from about 0.005% to about 10%, preferably from about 0.01% to about 5%, more preferably from about 0.05% to about 5%, still more preferably from about 0.1% to about 5%, and even more preferably from about 0.2% to about 3%, by weight of the aqueous personal care composition, of a water-soluble polymer.

The water-soluble polymer can have a solubility in water of about 0.1g/L to about 500g/L, as measured at 25 ℃. The water-soluble polymer may be of synthetic or natural origin and may be modified by chemical reaction.

In one embodiment, the water soluble polymer may have a weight average molecular weight of from about 5,000g/mol to about 50,000,000g/mol, alternatively from about 10,000g/mol to about 10,000,000g/mol, alternatively from about 20,000g/mol to about 5,000,000g/mol, alternatively from about 100,000g/mol to about 3,000,000 g/mol.

In one embodiment, an aqueous personal care composition having a water soluble polymer may have a viscosity of from about 100 centipoise to about 10,000,000 centipoise, alternatively from about 500 centipoise to about 5,000,000 centipoise, alternatively from about 1000 centipoise to about 100,000 centipoise at 20 ℃.

The water soluble polymer may be nonionic, cationic, anionic, amphoteric, and preferably nonionic or cationic, especially when the surfactant contained in the discrete particles is nonionic or cationic.

Non-limiting examples of synthetic water-soluble polymers may be selected from: polyvinyl alcohol, polyvinylpyrrolidone, polyalkylene oxide, polyacrylate, caprolactam, polymethacrylate, polymethyl methacrylate, polyacrylamide, polymethacrylamide, polydimethylacrylamide, polyethylene glycol monomethacrylate, polyurethane, polycarboxylic acid, polyvinyl acetate, polyester, polyamide, polyamine, polyethyleneimine and PEG-240/HDI copolymer bis-decyltetradecylpolyether-20 ether.

Other non-limiting examples of synthetic water-soluble polymers may be selected from: copolymers of anionic monomers, cationic monomers and amphoteric monomers and mixtures thereof including copolymers based on maleic acrylate, copolymers based on maleic methacrylate, copolymers of methyl vinyl ether and maleic anhydride, copolymers of vinyl acetate and crotonic acid, copolymers of vinyl pyrrolidone and vinyl acetate, and copolymers of vinyl pyrrolidone and caprolactam, polyquaternium-37, polyquaternium-6 and polyquaternium-7.

Non-limiting examples of natural water-soluble polymers may be selected from: karaya gum, tragacanth gum, gum arabic, acetyl mannan, konjac mannan, acacia gum, ghatti gum (gum ghatti), whey protein isolate, soy protein isolate, guar gum, locust bean gum, quince seed gum, psyllium seed gum, carrageenan, alginates, agar, fruit extracts (pectin), xanthan gum, gellan gum, pullulan (pullulan), hyaluronic acid, chondroitin sulfate and dextran, casein, gelatin, keratin hydrolysates, keratin sulfonate, albumin, collagen, gluten, glucagon, gluten, zein, shellac, and mixtures thereof.

Non-limiting examples of modified natural water-soluble polymers may be selected from: (1) cellulose derivatives including hydroxypropylmethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, hydroxypropyl cellulose, ethyl cellulose, carboxymethyl cellulose, cellulose acetate phthalate, nitrocellulose, cellulose ethers, cellulose esters; and (2) guar derivatives, including hydroxypropyl guar. Suitable hydroxypropyl methylcelluloses may include those available from the Dow Chemical Company (Midland, MI).

Of these, highly preferred are polyquaternium-37 and PEG-240/HDI copolymer bis-decyltetradecylpolyether-20 ether.

Container with a lid

The material, structure and shape of the container may be any as long as the container can contain and dispense the solid discrete particles therein and has reasonable water protection.

For example, the structure and shape may be altered for single dose containers containing a relatively smaller amount of solid discrete particles therein, or for multi-dose containers containing a relatively larger amount of solid discrete particles therein.

Solid discrete particles

Solid discrete particles of the mixture composition are used herein. The solid discrete particles preferably comprise, i.e. consist of, 100% of the mixture composition. When the discrete particles comprise water prior to swelling, the water content is preferably controlled prior to swelling such that the discrete particles comprise less than about 50% water, more preferably less than about 25%, still more preferably less than about 15%, even more preferably less than about 10%, yet more preferably less than about 8%, by weight of the discrete particles, of water prior to swelling.

The solid discrete particles in the container are preferably dry and are contained without any liquid carrier suspending the discrete particles.

The solid discrete particles preferably have a particle size of from about 1 micron to about 2000 microns, more preferably from about 10 microns to about 1000 microns, still more preferably from about 50 microns to about 500 microns.

The solid discrete particles herein can be any shape, such as spherical, rectangular, or diamond.

Preferably, the discrete particles useful herein are dispersed in the personal care composition and can be visually observed in the final product, for example by microscopy, as discrete particles, however, those discrete particles do not show a maltese cross mark when measured by polarized light microscopy. This means that the discrete particles useful herein are not vesicles as typically observed in emulsions (comprising surfactants, high melting point fatty compounds, and aqueous carriers). Generally, the surfactant, high melting point fatty compound, and aqueous carrier form an emulsion, preferably a gel matrix. In such emulsions and gel matrices, these components typically form lamellar vesicles and/or lamellar sheets. Such lamellar vesicles can be observed microscopically in the form of discrete particles, however, showing maltese cross labeling when measured by polarized microscopy.

Preferably, the discrete particles useful herein swell in the aqueous personal care composition, more preferably due to the aqueous carrier comprised in the aqueous personal care composition, still more preferably due to the water comprised in the aqueous personal care composition.

The discrete particles are preferably not oil-in-water emulsions or water-in-oil-in-water emulsions, more preferably not any emulsions, including water-in-oil emulsions and oil-in-water-in-oil emulsions, before and after swelling.

Discrete particles herein are distinct from particles coated or encapsulated by, for example, a polymer.

The discrete particles useful herein are distinct from swellable silicone elastomers and swellable thickening polymers. Preferably, the discrete particles and the mixture composition are substantially free of such swellable silicone elastomers and swellable thickening polymers. In the present invention, "discrete particles and mixture compositions are substantially free of swellable silicone elastomer and swellable thickening polymer" means that: the discrete particles and mixture composition are free of swellable silicone elastomer and swellable thickening polymer; alternatively, if the discrete particle and mixture composition comprises swellable silicone elastomers and swellable thickening polymers, the content of such swellable silicone elastomers and swellable thickening polymers is very low. In the present invention, the total content of such swellable silicone elastomer and swellable thickening polymer, if included, is preferably 0.1% or less by weight of the discrete particles or by weight of the mixture composition, more preferably 0.05% or less, still more preferably 0.01% or less. Most preferably, the total content of such swellable silicone elastomer and swellable thickening polymer is 0% by weight of the discrete particles or by weight of the mixture composition.

When the solid discrete particles and the mixture composition comprise liquid polypropylene glycol and/or a di-long alkyl cationic surfactant such as a di-long alkyl quaternized ammonium salt, the solid discrete particles can swell and/or dissolve faster in the aqueous composition.

Mixture composition

The blend compositions useful herein comprise a surfactant and a high melting point fatty compound. The mixture composition may further comprise a benefit agent. These components will be described in detail later.

In view of having solid discrete particles of the blend composition, the surfactant and high melting point fatty compound are preferably present in the blend composition at a level of from about 10% to about 100%, more preferably from about 20% to about 100%, still more preferably from about 40% to about 100%, even more preferably from about 60% to about 100%, yet more preferably from about 80% to about 100%, by weight of the blend composition, with or without other ingredients.

When the mixture composition contains any liquid, such as water-insoluble liquids, water-miscible liquids, and water-soluble liquids and water, in addition to the surfactant and the high melting point fatty compound, it is also preferable to control the content of such liquids in view of having solid discrete particles of the mixture composition, so that the total liquid content in the mixture composition may be preferably at most about 50%, more preferably at most about 40%, still more preferably at most about 30%, by weight of the mixture composition.

When the liquid is a water-insoluble liquid such as a silicone, such water-insoluble liquid may be included in the mixture composition at a level of preferably up to about 50%, more preferably up to about 40%, still more preferably up to about 30%, by weight of the mixture composition.

When the liquids are water-miscible liquids such as propylene glycol and glycerin, such water-miscible liquids may be included in the mixture composition at a level preferably up to about 50%, more preferably up to about 40%, still more preferably up to about 30% by weight of the mixture composition.

When the liquid is a water-soluble liquid such as isopropyl alcohol (IPA) and ethanol, such water-soluble liquid may be included in the mixture composition at a level of preferably up to about 50%, more preferably up to about 30%, still more preferably up to about 20%, by weight of the mixture composition.

When the mixture composition comprises water, it is preferred, in view of having solid discrete particles of the mixture composition, to control the water content such that the mixture composition comprises less than about 50% water, more preferably less than about 25%, still more preferably less than about 15%, even more preferably less than about 10%, yet more preferably less than about 8%, by weight of the mixture composition.

Preferably in the blend composition, the surfactant and the high melting point fatty compound are included at levels such that the weight ratio of surfactant to high melting point fatty compound ranges from about 1:1 to about 1:10, more preferably from about 1:1 to about 1:4, still more preferably from about 1:2 to about 1:4, in view of enhancing rheology and/or conditioning benefits.

Surfactants for mixture compositions

The surfactant used in the mixture composition is preferably hydrophobic and is also preferably selected from: cationic surfactants, nonionic surfactants, and mixtures thereof; and still more preferably a cationic surfactant. Such preferred cationic surfactants are further described below under the heading "cationic surfactants".

High melting point fatty compounds for blend compositions

The high melting point fatty compounds used in the blend compositions are described below under the heading "high melting point fatty compounds".

Benefit agents for mixture compositions

The blend composition may further comprise a benefit agent other than the surfactant and the high melting point fatty compound, the benefit agent being different from the surfactant and the high melting point fatty compound. The benefit agent is also distinct from the aqueous carrier and water that may be included in the mixture composition.

In view of the benefits provided by the benefit agent, and in view of having discrete particles of the mixture, the benefit agent may be included in the mixture composition at a level of preferably from about 0.1% to about 90%, more preferably from about 0.3% to about 60%, still more preferably from about 0.5% to about 40%, even more preferably from about 0.5% to about 30%, by weight of the mixture composition.

Preferably, such benefit agents are selected from: a siloxane compound; a fragrance; aesthetic benefit agents, such as colorants, to add a color to the discrete particles that is different from the color of the aqueous personal care composition. Sensates such as heating/cooling agents; an anti-dandruff agent; an incompatible agent that is incompatible with at least one of the personal care composition, the packaging, and any other environmental factors; and mixtures thereof.

Such siloxane compounds are further described below under the title "siloxane compounds".

Such perfumes may be any material, such as the perfume itself, as well as Perfume Microcapsules (PMCs), wherein the perfume is encapsulated by a polymeric outer layer.

Such colorants can be any material, such as pigments and dyes.

Such incompatible agents are for example those selected from the group consisting of:

solid minerals or chemicals having high ionic strength and/or high surface charge and tending to cause agglomeration and/or crystallization in aqueous compositions, such as mica, salicylic acid and metal pyrithione, such as zinc pyrithione with or without an ionic polymer coating or dispersion;

organic oil materials that are highly interactive with gel network components, for example, hexyldecanol, isostearyl isostearate;

and mixtures thereof.

Depending on the type of benefit agent, the solid discrete particles may provide at least one of the following when comprising the benefit agent:

-enhancement of rheology, in particular storage modulus (G') and/or enhancement of rich conditioning perception/sensation, preferably independent of the use of thickening polymers.

-enhancing conditioning benefits

-adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and fragrances

-providing at least one of the above benefits while having improved stability, especially when incompatible components are included, and/or while not causing adverse interactions with personal care compositions, packaging and any other environmental factors.

Cationic surfactant

The cationic surfactant useful herein can be one cationic surfactant, or a mixture of two or more cationic surfactants. Preferably, the cationic surfactant is selected from: mono-long chain alkyl quaternized ammonium salts; a combination of mono-long alkyl quaternized ammonium salts and di-long alkyl quaternized ammonium salts; a mono-long chain alkylamine; a combination of a mono-long alkyl amine and a di-long alkyl quaternized ammonium salt.

Mono-long chain alkyl quaternized ammonium salts

Mono-long alkyl quaternized ammonium salts useful herein are those having one long alkyl chain with 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably C18-22 alkyl groups. The remaining groups attached to the nitrogen are independently selected from an alkyl group of 1 to about 4 carbon atoms, or an alkoxy group, polyoxyalkylene group, alkylamido group, hydroxyalkyl group, aryl group or alkylaryl group having up to about 4 carbon atoms.

Mono-long chain alkyl quaternized ammonium salts useful herein are those having the formula (I):

wherein R is⁷⁵、R⁷⁶、R⁷⁷And R⁷⁸One of which is selected from an alkyl group of 12 to 30 carbon atoms, or an aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl group having up to about 30 carbon atoms; wherein R is⁷⁵、R⁷⁶、R⁷⁷And R⁷⁸Is independently selected from an alkyl group of 1 to about 4 carbon atoms, or an alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl group having up to about 4 carbon atoms; and X^-Are salt-forming anions such as those selected from the group consisting of halogen (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkylsulfate, and alkylsulfonate groups. In addition to carbon and hydrogen atoms, alkyl groups may also contain ether and/or ester linkages, as well as other groups such as amino groups. Longer chain alkyl groups, such as those of about 12 carbons or more, may be saturated or unsaturated. Preferably, R⁷⁵、R⁷⁶、R⁷⁷And R⁷⁸One of them is selected from alkyl groups of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, still more preferably 18 to 22 carbon atoms, even more preferably 22 carbon atoms; r⁷⁵、R⁷⁶、R⁷⁷And R⁷⁸The remainder of (A) is independently selected from CH₃、C₂H₅、C₂H₄OH and othersMixtures thereof; and X is selected from Cl, Br, CH₃OSO₃、C₂H₅OSO₃And mixtures thereof.

Non-limiting examples of such mono-long alkyl quaternized ammonium salt cationic surfactants include: behenyl trimethyl ammonium salt; stearyl trimethyl ammonium salt; cetyl trimethylammonium salt; and hydrogenated tallow alkyl trimethyl ammonium salts.

Di-long chain alkyl quaternized ammonium salts

When used, the di-long alkyl quaternized ammonium salt is preferably combined with the mono-long alkyl quaternized ammonium salt or mono-long alkyl amine salt in a weight ratio of 1:1 to 1:5, more preferably 1:1.2 to 1:5, still more preferably 1:1.5 to 1:4, in view of rheological stability and conditioning benefits.

Di-long chain alkyl quaternized ammonium salts useful herein are those having two long alkyl chains of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, still more preferably 18 to 22 carbon atoms. Such di-long chain alkyl quaternized ammonium salts useful herein are those having the formula (I):

wherein R is⁷¹、R⁷²、R⁷³And R⁷⁴Two of (a) are selected from aliphatic groups having from 12 to 30 carbon atoms, preferably from 16 to 24 carbon atoms, more preferably from 18 to 22 carbon atoms, or aromatic groups, alkoxy groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups or alkylaryl groups having up to about 30 carbon atoms; r⁷¹、R⁷²、R⁷³And R⁷⁴The remainder of (a) are independently selected from aliphatic groups having from 1 to about 8 carbon atoms, preferably from 1 to 3 carbon atoms, or aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl groups having up to about 8 carbon atoms; and X^-Is a salt-forming anion, and is,it is selected from: halide ions such as chloride and bromide, C1-C4 alkyl sulfates such as methyl sulfate and ethyl sulfate, and mixtures thereof. In addition to carbon and hydrogen atoms, aliphatic groups may also contain ether linkages and other groups such as amino groups. Longer chain aliphatic groups, such as those having about 16 or more carbons, can be saturated or unsaturated. Preferably, R⁷¹、R⁷²、R⁷³And R⁷⁴Two of (a) are selected from alkyl groups of 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 18 to 22 carbon atoms; and R is⁷¹、R⁷²、R⁷³And R⁷⁴The remainder of (A) is independently selected from CH₃、C₂H₅、C₂H₄OH、CH₂C₆H₅And mixtures thereof.

Such preferred di-long chain alkyl cationic surfactants include, for example, dialkyl (14-18) dimethyl ammonium chloride, ditalloalkyl dimethyl ammonium chloride, dihydrogenated tallow alkyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, and dicetyl dimethyl ammonium chloride.

Mono-long chain alkylamines

Mono-long alkyl amines useful herein are those having one long alkyl chain with preferably 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, still more preferably 18 to 22 alkyl groups. Mono-long alkyl amines useful herein also include mono-long alkyl amidoamines. Aliphatic primary amines, aliphatic secondary amines, and aliphatic tertiary amines are usable.

Particularly useful are tertiary amidoamines having an alkyl group of from about 12 to about 22 carbons. Exemplary tertiary amido amines include: stearamidopropyl dimethylamine, stearamidopropyl diethylamine, stearamidoethyl dimethylamine, palmitamidopropyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl dimethylamine, arachidopropyl diethylamine, arachidoethyl dimethylamine, diethylamidoethyl stearamide. Amines useful in the present invention are disclosed in U.S. Pat. No. 4,275,055 to Nachtigal et al.

These amines are used in combination with the following acids: such as lambda-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, tartaric acid, citric acid, lambda-glutamic acid hydrochloride, maleic acid, and mixtures thereof; more preferably, lambda-glutamic acid, lactic acid, citric acid are used in a molar amine to acid ratio of about 1:0.3 to about 1:2, more preferably about 1:0.4 to about 1:1.

High melting point aliphatic compounds

The high melting point fatty compounds useful herein have a melting point of 25 ℃ or higher, preferably 40 ℃ or higher, more preferably 45 ℃ or higher, still more preferably 50 ℃ or higher, in view of the stability of the emulsion, especially the gel matrix. In view of easier preparation and easier emulsification, preferably this melting point is at most about 90 ℃, more preferably at most about 80 ℃, still more preferably at most about 70 ℃, even more preferably at most about 65 ℃. In the present invention, the high melting point fatty compound may be used in the form of a single compound or a blend or mixture of at least two high melting point fatty compounds. When used in such blends or mixtures, the above melting point means the melting point of the blend or mixture.

The high melting point fatty compounds useful herein are selected from the group consisting of fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof. It will be appreciated by those skilled in the art that the compounds disclosed in this section of the specification may in some cases fall into more than one category, for example certain fatty alcohol derivatives may also be classified as fatty acid derivatives. However, the given classification is not intended to be limiting with respect to a particular compound, but is for ease of classification and nomenclature. Furthermore, it will be understood by those skilled in the art that depending on the number and position of double bonds and the length and position of the branches, certain compounds having certain desired carbon atoms may have melting points below the preferred melting points hereinabove in the present invention. Such low melting compounds are not intended to be included in this part. Non-limiting examples of high melting point compounds can be found in "International Cosmetic Ingredient Dictionary", fifth edition, 1993, and "CTFA Cosmetic Ingredient Handbook", second edition, 1992.

Among the various high melting point fatty compounds, fatty alcohols are preferred for use in the compositions of the present invention. Fatty alcohols useful herein are those having from about 14 to about 30 carbon atoms, preferably from about 16 to about 22 carbon atoms. These fatty alcohols are saturated and may be straight chain alcohols or branched chain alcohols.

Preferred fatty alcohols include, for example, cetyl alcohol (having a melting point of about 56℃.), stearyl alcohol (having a melting point of about 58℃. to 59℃.), behenyl alcohol (having a melting point of about 71℃.), and mixtures thereof. These compounds are known to have the above melting points. However, when supplied, they typically have lower melting points, as the products supplied are typically mixtures of fatty alcohols with an alkyl chain length distribution in which the alkyl backbone is cetyl, stearyl or behenyl groups.

In the present invention, a more preferred fatty alcohol is a mixture of cetyl alcohol and stearyl alcohol.

Generally, the weight ratio of cetyl alcohol to stearyl alcohol in the mixture is preferably from about 1:9 to 9:1, more preferably from about 1:4 to about 4:1, still more preferably from about 1:2.3 to about 1.5:1

Siloxane compound

The silicone compounds useful herein have a viscosity at 25 ℃ of preferably from about 1,000 mPa-s to about 2,000,000 mPa-s, as a single compound, as a blend or mixture of at least two silicone compounds, or as a blend or mixture of at least one silicone compound and at least one solvent.

The viscosity can be measured by means of a glass capillary viscometer, as described in Dow Corning corporation Test Method CTM0004, 20.7.1970. Suitable silicone fluids include polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes, polyether siloxane copolymers, amino-substituted siloxanes, quaternized siloxanes, and mixtures thereof. Other nonvolatile silicone compounds having conditioning properties may also be used.

In some embodiments, it is preferred to use amino-substituted siloxanes. Preferred aminosiloxanes include, for example, those corresponding to the general formula (I):

(R₁)_aG_3-a-Si-(-OSiG₂)_n-(-OSiG_b(R₁)_2-b)_m-O-SiG_3-a(R₁)_a

wherein G is hydrogen, phenyl, hydroxy or C₁-C₈Alkyl, preferably methyl; a is 0 or an integer having a value of 1 to 3, preferably 1; b is 0, 1 or 2, preferably 1; n is a number from 0 to 1,999; m is an integer of 0 to 1,999; the sum of n and m is a number from 1 to 2,000; a and m are not equal to 0; r₁To conform to the general formula CqH_2qA monovalent group of L, wherein q is an integer having a value of 2 to 8, and L is selected from the group consisting of: -N (R)₂)CH₂-CH₂-N(R₂)₂；-N(R₂)₂；-N(R₂)₃A^ˉ；-N(R₂)CH₂-CH₂-NR₂H₂A^ˉ(ii) a Wherein R is₂Is hydrogen, phenyl, benzyl or a saturated hydrocarbon radical, preferably about C₁To about C₂₀An alkyl group of (a); a. the^ˉIs a halide ion.

Highly preferred aminosilicones are those corresponding to formula (I) wherein m ═ 0, a ═ 1, q ═ 3, G ═ methyl, n is preferably from about 1500 to about 1700, more preferably about 1600; and L is-N (CH)₃)₂or-NH₂More preferably-NH₂. Another highly preferred aminosiloxane is those corresponding to formula (I) wherein m ═ 0, a ═ 1, q ═ 3, G ═ methyl, n is preferably from about 400 to about 600, more preferably about 500; and L is-N (CH)₃)₂or-NH₂More preferably-NH₂. Such highly preferred aminosilicones may be referred to as terminal aminosilicones, since one or both ends of the silicone chain are terminated by nitrogen-containing groups.

When the above aminosilicones are incorporated into a composition, the aminosilicones can be mixed with solvents having a relatively low viscosity. For example, such solvents include polar or non-polar, volatile or non-volatile oils. For example, such oils include silicone oils, hydrocarbons, and esters. Among such solvents, preferred are those selected from the group consisting of: non-polar volatile hydrocarbons, volatile cyclic siloxanes, non-volatile linear siloxanes, and mixtures thereof. Non-volatile linear silicones useful herein are those having a viscosity of from about 1 centistoke to about 20,000 centistoke, preferably from about 20 centistoke to about 10,000 centistoke at 25 ℃. Among the preferred solvents, non-polar volatile hydrocarbons, especially non-polar volatile isoparaffins, are highly preferred in view of reducing the viscosity of the aminosilicones and providing improved hair conditioning benefits such as reduced friction on dry hair. Such mixtures have a viscosity of preferably from about 1,000 to about 100,000 mPa-s, more preferably from about 5,000 to about 50,000 mPa-s.

Other suitable alkylamino substituted silicone compounds include those having an alkylamino substituent as a pendant group to the silicone backbone. Those referred to as "amino-terminated polydimethylsiloxanes" are highly preferred. Commercially available amino-terminated polydimethylsiloxanes that can be used herein include, for example, BY16-872, available from Dow Corning.

Siloxane polymers comprising quaternary groups

The silicone compounds useful herein include, for example, silicone polymers comprising quaternary groups containing terminal ester groups, the silicone polymers having a viscosity of up to 100,000 mPa-s and a D block length of greater than 200D units. Without being bound by theory, the low viscosity silicone polymer provides improved conditioning benefits such as smooth feel, reduced friction, and prevention of hair damage, while eliminating the need for silicone blends.

Structurally, the silicone polymer is a polyorganosiloxane compound comprising one or more quaternary ammonium groups, at least one silicone block comprising greater than 200 siloxane units, at least one polyalkylene oxide structural unit, and at least one terminal ester group. In one or more embodiments, the siloxane block can comprise 300 to 500 siloxane units.

The silicone polymer is present in an amount from about 0.05% to about 15%, preferably from about 0.1% to about 10%, more preferably from about 0.15% to about 5%, and even more preferably from about 0.2% to about 4%, by weight of the composition.

In a preferred embodiment, the polyorganosiloxane compound has the general formulae (Ia) and (Ib):

M-Y-[-(N⁺R₂-T-N⁺R₂)-Y-]_m-[-(NR²-A-E-A’-NR²)-Y-]_k-M (Ia)

M-Y-[-(N⁺R₂-T-N⁺R₂)-Y-]_m-[-(N⁺R² ₂-A-E-A’-N⁺R² ₂)-Y-]_k-M (Ib)

wherein:

m >0, preferably 0.01 to 100, more preferably 0.1 to 100, even more preferably 1 to 100, specifically 1 to 50, more specifically 1 to 20, even more specifically 1 to 10,

k is 0 or an average value of >0 to 50, or preferably 1 to 20, or even more preferably 1 to 10. M represents a terminal group comprising a terminal ester group selected from:

-OC(O)-Z

-OS(O)₂-Z

-OS(O₂)O-Z

-OP(O)(O-Z)OH

-OP(O)(O-Z)₂

wherein Z is selected from monovalent organic residues having up to 40 carbon atoms, optionally comprising one or more heteroatoms.

A and A' are each independently of one another selected from a single bond or a divalent organic radical having up to 10 carbon atoms and one or more heteroatoms, and

e is a polyalkylene oxide group having the general formula:

-[CH₂CH₂O]_q-[CH₂CH(CH₃)O]_r-[CH₂CH(C₂H₅)O]_s-

wherein q is 0 to 200, r is 0 to 200, s is 0 to 200, and q + r + s is 1 to 600.

R²Is selected from the group consisting of hydrogen or R,

r is selected from monovalent organic groups having up to 22 carbon atoms and optionally one or more heteroatoms, and wherein the free valence at the nitrogen atom is bound to a carbon atom, Y is a group having the formula:

-K-S-K-and-A-E-A '-or-A' -E-A-,

whereinWherein R1 ═ C₁-C₂₂Alkyl radical, C₁-C₂₂-fluoroalkyl or aryl; n is 200 to 1000, and if a plurality of S groups are present in the polyorganosiloxane compound, these may be the same or different.

K is a divalent or trivalent linear, cyclic and/or branched C₂-C₄₀Hydrocarbon residue optionally interrupted by-O-, -NH-, trivalent N, -NR¹-, -C (O) -, -C (S) -, and optionally substituted with-OH, wherein R is¹As defined above, the above-mentioned,

t is selected from divalent organic groups having up to 20 carbon atoms and one or more heteroatoms.

The residues K may be identical to or different from each other. In the-K-S-K-moiety, the residue K is bonded to the silicon atom of the residue S via a C-Si-bond.

Due to the possible presence of amine groups (- (NR) in the polyorganosiloxane compound²-A-E-A’-NR²) -) which may therefore have protonated ammonium groups obtained from protonation of such amine groups with organic or inorganic acids. Such compounds are sometimes referred to as acid addition salts of polyorganosiloxane compounds.

In a preferred embodiment, the quaternary amineThe molar ratio of group b) to terminal ester group c) is less than 100:20, even more preferably less than 100:30, and most preferably less than 100: 50. The ratio can be determined by¹³C-NMR.

In another embodiment, the polyorganosiloxane composition may comprise:

A) at least one polyorganosiloxane compound comprising a) at least one polyorganosiloxane group, b) at least one quaternary ammonium group, c) at least one terminal ester group, and d) at least one polyalkyleneoxy group (as previously defined),

B) at least one polyorganosiloxane compound comprising at least one terminal ester group different from compound a).

In the definition of component A), this may be mentioned in the description of the polyorganosiloxane compounds according to the invention. Polyorganosiloxane compound B) differs from polyorganosiloxane compound a) preferably in that it does not contain quaternary ammonium groups. Preferred polyorganosiloxane compounds B) result from the reaction of monofunctional organic acids, in particular carboxylic acids, with polyorganosiloxanes comprising diepoxides.

In the polyorganosiloxane compositions, the weight ratio of compound a) to compound B) is preferably less than 90: 10. Or in other words, the content of component B) is at least 10% by weight. In another preferred embodiment of the polyorganosiloxane compositions in compound a), the molar ratio of quaternary ammonium groups b) to terminal ester groups c) is less than 100:10, even more preferably less than 100:15, and most preferably less than 100: 20.

The siloxane polymer has a molecular weight distribution at 20 ℃ and 0.1s^-1A shear rate (plate-plate system, plate diameter 40mm, gap width 0.5mm) of less than 100,000 mPas (100Pa s). In further embodiments, the viscosity of the pure siloxane polymer may be in the range of from 500 to 100,000 mPa-s, or preferably from 500 to 70,000 mPa-s, or more preferably from 500 to 50,000 mPa-s, or even more preferably from 500 to 20,000 mPa-s. In other embodiments, at 20 ℃ and 0.1s^-1The viscosity of the neat polymer may be from 500 to 10,000 mPas, or preferably from 500 to 50 mPas, as measured at a shear rate ofIn the range of 00 mPas.

In addition to the silicone polymers listed above, the following preferred compositions are provided below. For example, in the polyalkylene oxide group E having the general formula:

-[CH₂CH₂O]_q-[CH₂CH(CH₃)O]_r-[CH₂CH(C₂H₅)O]_s-

wherein the subscripts q, r, and s may be defined as follows:

q is 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20,

r-is from 0 to 200, or preferably from 0 to 100, or more preferably from 0 to 50, or even more preferably from 0 to 20,

s is 0 to 200, or preferably 0 to 100, or more preferably 0 to 50, or even more preferably 0 to 20, and

q + r + s is 1 to 600, or preferably 1 to 100, or more preferably 1 to 50, or even more preferably 1 to 40.

For polyorganosiloxane structural units having the following general formula S:

R¹＝C₁-C₂₂alkyl radical, C₁-C₂₂-fluoroalkyl or aryl; n is 200 to 1000, or preferably 300 to 500, K (in the group-K-S-K-) is preferably a divalent or trivalent linear, cyclic or branched C₂-C₂₀Hydrocarbon residue optionally interrupted by-O-, -NH-, trivalent N, -NR¹-, -C (O) -, -C (S) -, and optionally substituted with-OH.

In specific embodiments, R¹Is C₁-C₁₈Alkyl radical, C₁-C₁₈Fluoroalkyl and aryl. Furthermore, R¹Preferably C₁-C₁₈Alkyl radical, C₁-C₆Fluoroalkyl and aryl. Furthermore, R¹More preferably C₁-C₆Alkyl radical，C₁-C₆Fluoroalkyl, even more preferably C₁-C₄Fluoroalkyl and phenyl. Most preferably, R¹Methyl, ethyl, trifluoropropyl and phenyl.

As used herein, the term "C₁-C₂₂Alkyl "means an aliphatic hydrocarbon group having 1 to 22 carbon atoms, which may be straight or branched. Methyl, ethyl, propyl, n-butyl, pentyl, hexyl, heptyl, nonyl, decyl, undecyl, isopropyl, neopentyl and 1,2, 3-trimethylhexyl moieties are used as examples.

Further, as used herein, the term "C₁-C₂₂Fluoroalkyl "refers to an aliphatic hydrocarbon compound having 1 to 22 carbon atoms, which may be straight or branched chain and substituted with at least one fluorine atom. Suitable examples are monofluoromethyl, monofluoroethyl, 1,1, 1-trifluoroethyl, perfluoroethyl, 1,1, 1-trifluoropropyl, 1,2, 2-trifluorobutyl.

In addition, the term "aryl" means unsubstituted or substituted by OH, F, Cl, CF₃、C₁-C₆Alkyl radical, C₁-C₆Alkoxy radical, C₃-C₇Cycloalkyl radical, C₂-C₆Alkenyl or phenyl substituted one or more times by phenyl. Aryl may also refer to naphthyl.

For polyorganosiloxane embodiments, the positive charge from one or more of the ammonium groups is neutralized by: inorganic anions such as chloride, bromide, hydrogen sulfate, or organic anions such as those derived from C₁-C₃₀Carboxylate ions of carboxylic acids (e.g. acetate, propionate, octanoate), in particular derived from C₁₀-C₁₈Carboxylate ions of carboxylic acids (e.g., decanoate, dodecanoate, tetradecanoate, hexadecanoate, octadecanoate, and oleate), alkyl polyether carboxylates, alkyl sulfonates, aryl sulfonates, alkyl sulfates, alkyl polyether sulfates, phosphates derived from mono-and di-alkyl/aryl phosphates. The properties of the polyorganosiloxane compound can vary, inter alia, based on the choice of the acid used.

The quaternary ammonium groups are typically formed by reacting a di-tertiary amine with an alkylating agent, specifically selected from diepoxides (also sometimes referred to as diepoxides), in the presence of a monocarboxylic acid and a difunctional dihaloalkyl compound.

In a preferred embodiment, the polyorganosiloxane compound has the general formulae (Ia) and (Ib):

M-Y-[-(N⁺R₂-T-N⁺R₂)-Y-]_m-[-(NR²-A-E-A’-NR²)-Y-]_k-M (Ia)

M-Y-[-(N⁺R₂-T-N⁺R₂)-Y-]_m-[-(N⁺R² ₂-A-E-A’-N⁺R² ₂)-Y-]_k-M (Ib)

wherein each group is as defined above; however, the repeating units are in a statistical arrangement (i.e., not a block arrangement).

In another preferred embodiment, the polyorganosiloxane compound can also have the general formula (IIa) or (IIb):

M-Y-[-N⁺R₂-Y-]_m-[-(NR²-A-E-A’-NR²)-Y-]_k-M (IIa)

M-Y-[-N⁺R₂-Y-]_m-[-(N⁺R² ₂-A-E-A’-N⁺R² ₂)-Y-]_k-M (IIb)

wherein each group is as defined above. In such formulae, the repeat units are also typically in a statistical arrangement (i.e., not a block arrangement).

Wherein, as defined above, M is

-OC(O)-Z，

-OS(O)₂-Z

-OS(O₂)O-Z

-OP(O)(O-Z)OH

-OP(O)(O-Z)₂

Z is a linear, cyclic or branched saturated or unsaturated C₁-C₂₀Or preferably C₂To C₁₈Or even more preferably a hydrocarbon group which may be interrupted by one or more-O-or-C (O) -and substituted by-OH. In a particular embodiment, M is-oc (o) -Z, which is derived from a common carboxylic acid, in particular a carboxylic acid having more than 10 carbon atoms, such as dodecanoic acid.

In another embodiment, the molar ratio of the repeating group-K-S-K-to the polyalkylene repeating group-A-E-A '-or-A' -E-A-comprised in the polyorganosiloxane is between 100:1 and 1:100, or preferably between 20:1 and 1:20, or more preferably between 10:1 and 1: 10.

In the group- (N)⁺R₂-T-N⁺R₂) In which R may represent a monovalent linear, cyclic or branched C₁-C₂₀A hydrocarbon group which may be interrupted by one or more-O-, -C (O) -and may be substituted by-OH, T may represent a divalent straight, cyclic or branched C₁-C₂₀A hydrocarbon group which may be interrupted by-O-, -C (O) -and may be substituted by a hydroxyl group.

The above polyorganosiloxane compound comprising a quaternary ammonium functional group and an ester functional group may further comprise: 1) a single molecule comprising a quaternary ammonium functional group and no ester functional group; 2) a molecule comprising a quaternary ammonium functional group and an ester functional group; and 3) molecules comprising an ester functional group and not comprising a quaternary ammonium functional group. While not limited by structure, the above-described polyorganosiloxane compound containing quaternary ammonium functional groups and ester functional groups is to be understood as a mixture of molecules containing both moieties in a certain average amount and ratio.

Various monofunctional organic acids can be utilized to produce esters. Exemplary embodiments include C₁-C₃₀Carboxylic acids such as C₂、C₃、C₈Acid, C₁₀-C₁₈Carboxylic acids such as C₁₂、C₁₄、C₁₆Acid, saturated, unsaturated and hydroxy-functionalized C₁₈Acids, alkyl polyether carboxylic acids, alkyl sulfonic acids, aryl sulfonic acids, alkyl sulfuric acids, alkyl polyether sulfuric acids, mono alkyl/aryl phosphates and dialkyl/aryl phosphates.

Additional Components

The personal care compositions of the present invention may contain other additional components which may be selected by those skilled in the art depending on the desired characteristics of the final product and which are suitable for rendering the compositions more cosmetically or aesthetically acceptable or for providing them with additional use benefits. Such other additional components are typically used alone at levels of from about 0.001% to about 10%, preferably up to about 5%, by weight of the composition.

A variety of other additional components may be formulated into the compositions of the present invention. These include: other conditioning agents such as hydrolyzed collagen from Hormel under the trade name Peptein 2000, vitamin E from Eisai under the trade name Emix-d, panthenol from Roche, panthenyl ethyl ether from Roche, hydrolyzed keratin, proteins, plant extracts, and nutrients; preservatives such as benzyl alcohol, methyl paraben, propyl paraben and imidazolidinyl urea; pH adjusters such as citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate; colorants such as any of FD & C or D & C dyes; a fragrance; ultraviolet and infrared masking and absorbing agents, such as benzophenone; and anti-dandruff agents such as zinc pyrithione.

Preparation of solid discrete particles and mixture compositions

The mixture composition was prepared by the following steps:

preparing a melt blend composition comprising a surfactant and a high melting point fatty compound, wherein the temperature of the melt blend composition is above the melting point of the high melting point fatty compound contained in the blend composition;

the molten mixture composition is cooled to a temperature below the melting point of the high melting point fatty compounds contained in the mixture composition to form the mixture composition. The discrete particles can be prepared at the same time as the mixture composition is prepared during the cooling step described above, or can be prepared after the mixture composition is formed.

Preferably, the temperature of the molten mixture composition is at least 2 ℃, more preferably at least 5 ℃, even more preferably at least 10 ℃ above the melting point of the above-mentioned high melting point fatty compounds. It is also preferred that the temperature of the molten mixture composition is from about 30 ℃ to about 150 ℃, more preferably from about 40 ℃ to about 100 ℃, still more preferably from about 50 ℃ to about 95 ℃, even more preferably from about 55 ℃ to about 90 ℃, still more preferably from about 66 ℃ to about 90 ℃.

Preferably, the molten mixture composition is cooled to a temperature that is at least 2 ℃, more preferably at least 5 ℃, and still more preferably at least 10 ℃ below the melting point of the high melting point fatty compounds contained in the mixture composition. It is also preferred to cool the molten mixture composition to a temperature of from about-200 ℃ to about 50 ℃, more preferably from about-40 ℃ to about 50 ℃, still more preferably from about 0 ℃ to about 30 ℃.

When a benefit agent is included in the mixture composition

When the mixture composition further comprises a benefit agent, the mixture composition may be prepared by the steps of:

preparing a melt blend composition comprising a surfactant and a high melting point fatty compound, wherein the temperature of the melt blend composition is above the melting point of the high melting point fatty compound contained in the blend composition;

the molten mixture composition is cooled to a temperature below the melting point of the high melting point fatty compounds contained in the mixture composition to form the mixture composition, wherein the benefit agent can be added at any time depending on the nature of the benefit agent, e.g., the benefit agent can be added to the mixture composition before cooling, during cooling, especially when a volatile benefit agent such as perfume is used, or after cooling, preferably immediately after cooling, such as within 30min after cooling.

When the mixture composition includes a benefit agent, the benefit agent can be uniformly mixed with the mixture composition and can form uniform discrete particles in the composition.

Alternatively, in discrete particles, the benefit agent may form an inner core covered by an outer shell formed from the mixture composition.

Examples

The following examples further describe and demonstrate embodiments within the scope of the present invention. These examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as many variations thereof are possible without departing from the spirit and scope of the invention. All ingredients suitable for use herein are identified by chemical name or CTFA name unless otherwise defined below.

Customized product composition-R

Customized product composition-S

Customized product composition-M

Customized product composition-P

Customized product composition-SA

Customized product composition-comparative example

Customized product composition-RP

Component definition

1BTMS/IPA 80% behenyl trimethyl ammonium methylsulfate and 20% isopropyl alcohol 2 aminosiloxane: from Momentive, having a viscosity of 10,000 mPas, and

having the following formula (I):

(R₁)_aG_3-a-Si-(-OSiG₂)_n-(-OSiG_b(R₁)_2-b)_m-O-SiG_3-a(R₁)_a (I)

wherein G is methyl; a is an integer of 1; b is 0, 1 or 2, preferably 1; n is a number from 400 to about 600; m is an integer of 0; r₁To conform to the general formula CqH_2qA monovalent group of L, wherein q is an integer of 3, and L is-NH₂

3 quaternized aminosilicones: available from Momentive, having the formula:

M-Y-[-(N⁺R₂-T-N⁺R₂)-Y-]_m-[-(N⁺R² ₂-A-E-A’-N⁺R² ₂)-Y-]_k-M

wherein

4 water-soluble polymer-1: ADEKA NOL GT-730 supplied by Adeka (30% PEG-240/HDI copolymer bis-decyltetradecylpolyether-20 ether, 50% butanediol and 20% water)

5 water-soluble polymer-2: polyquaternary ammonium salt-37

Method for preparing customized product composition

The embodiments disclosed and represented by the "examples" are customized personal care product compositions of the present invention, and are prepared and applied by instructions for use, including descriptions corresponding to the following steps:

(i) mixing an aqueous personal care composition with solid discrete particles at room temperature to produce a customized personal care product; and

(ii) the customized personal care product is applied to a target surface.

The solid discrete particles are prepared by the following method:

preparing a molten mixture composition, wherein the temperature of the molten mixture composition is above the melting point of the high melting point fatty compound contained in the mixture composition, i.e., from about 66 ℃ to about 90 ℃;

cooling the molten mixture composition to a temperature below the melting point of the high melting point fatty compounds contained in the mixture composition, i.e., from about 0 ℃ to about 40 ℃, to form a mixture composition; and

solid discrete particles consisting of the mixture composition are prepared.

Prior to mixing, the solid discrete particles are contained in a container separate from the personal care composition and the instructions for use are attached to the container.

The personal care product compositions disclosed and represented by "comparative examples" are comparative examples and are prepared by the methods described above for those with solid discrete particles, or by methods conventionally used for those without solid discrete particles.

Properties and advantageous effects

The embodiments disclosed and illustrated by the "examples" are tailored personal care product compositions of the present invention that are particularly useful for rinse-off use and have many advantages. For example, the present invention provides at least one of the following:

-enhancement of rheology, in particular storage modulus (G') and/or enhancement of rich conditioning perception/sensation, preferably independent of the use of thickening polymers.

-enhancing conditioning benefits

-adding new benefits such as aesthetic benefits, anti-dandruff benefits, sensations like heating/cooling, and fragrances

-providing at least one of the above benefits while having improved stability, especially when incompatible components are included, and/or while not causing adverse interactions with personal care compositions, packaging and any other environmental factors.

Some of such benefits can be understood by comparison with the comparative example "cex.

The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Rather, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm".

Each document cited herein, including any cross referenced or related patent or patent application and any patent application or patent to which this application claims priority or its benefits, is hereby incorporated by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with any disclosure of the invention or the claims herein or that it alone, or in combination with any one or more of the references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.

While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.