阅读说明：本技术 用载体固化液体氧化胺、甜菜碱和/或磺基甜菜碱表面活性剂 (Curing liquid amine oxide, betaine and/or sulfobetaine surfactants with a carrier ) 是由 温迪·罗 E·C·奥尔森 J·D·汉森 K·J·莫里纳罗 C·罗森塔尔 于 2019-01-28 设计创作，主要内容包括：本发明涉及用载体固化液体氧化胺、甜菜碱和/或磺基甜菜碱表面活性剂以形成固化的表面活性剂组合物。确切地说,本发明涉及利用干燥装置固化液体表面活性剂,其中进料组合物含有至少一种液体表面活性剂和载体以形成固化的表面活性剂组合物。所述固化的表面活性剂组合物可适用于各种清洁组合物。(The present invention relates to curing liquid amine oxide, betaine and/or sulfobetaine surfactants with a carrier to form a cured surfactant composition. In particular, the present invention relates to solidifying a liquid surfactant using a drying apparatus, wherein a feed composition comprises at least one liquid surfactant and a carrier to form a solidified surfactant composition. The cured surfactant composition may be suitable for use in a variety of cleaning compositions.)

1. A cured liquid surfactant composition comprising:

a liquid surfactant comprising one or more of an amine oxide, a betaine, and a sulfobetaine;

a carrier comprising an anionic surfactant, an organic salt, an inorganic salt, or a combination thereof; wherein the ratio of the carrier to the liquid surfactant is between about 5:1 to about 1:30 on an actives basis;

wherein the composition is a solid and the liquid surfactant is cured in the composition, and wherein the cured surfactant composition has less than about 5 wt% water.

2. The cured surfactant composition of claim 1, wherein the ratio of the carrier and the liquid surfactant is between about 2:1 and about 1:25 actives.

3. The cured surfactant composition of any of claims 1-2, wherein the liquid surfactant is one or more of: dodecyl dimethyl amine oxide, tridecyl dimethyl amine oxide, tetradecyl dimethyl amine oxide, pentadecyl dimethyl amine oxide, hexadecyl dimethyl amine oxide, heptadecyl dimethyl amine oxide, octadecyl dimethyl amine oxide, dodecyl dipropyl amine oxide, tetradecyldipropylamine oxide, hexadecyldipropylamine oxide, tetradecyldibutylamine oxide, octadecyldibutylamine oxide, bis (2-hydroxyethyl) dodecylamine oxide, bis (2-hydroxyethyl) -3-dodecyloxy-1-hydroxypropylamine oxide, dimethyl- (2-hydroxydodecyl) amine oxide, 3,6, 9-trioctadecyldimethylamine oxide and 3-dodecyloxy-2-hydroxypropylbis- (2-hydroxyethyl) amine oxide.

4. The cured surfactant composition of any of claims 1-3, wherein the liquid surfactant is one or more of: cocoyl amidopropyl dimethyl betaine; hexadecyl dimethyl betaine, C_12-14Acylamidopropyl betaine, C_8-14Acylamidohexyl diethylbetaine, C_16-18Acylamidodimethyl betaine, C_12-16Acylamidopentane diethylbetaine and C_12-16Acyl methyl amido dimethyl betaine; or a combination thereof.

5. The cured surfactant composition of any one of claims 1-4, wherein the liquid surfactant is of the formula (R)¹)₂N⁺R²SO^3-Wherein R is C₆-C₁₈A hydrocarbon group, wherein R¹Is C₁-C₃Alkyl, and wherein R²Is C₁-C₆A hydrocarbyl group.

6. The cured surfactant composition of any of claims 1-5, wherein the carrier comprises an anionic surfactant; wherein the anionic surfactant is a sulfonate, a sulfate, or a combination thereof.

7. The cured surfactant composition of any of claims 1-6, wherein the carrier is an alpha olefin sulfonate, a linear alkyl sulfonate, sodium lauryl sulfate, sodium alkyl sulfate, or a combination thereof.

8. The cured surfactant composition of any of claims 1-7, wherein the carrier is an alkali metal carbonate, an alkali metal acetate, an alkali metal sulfate, sodium chloride, or a combination thereof.

9. The cured surfactant composition of any of claims 1-8, wherein the carrier is sodium carbonate, magnesium carbonate, sodium acetate, magnesium acetate, sodium sulfate, magnesium acetate, or a combination thereof.

10. The cured surfactant composition of any of claims 1-9, wherein the carrier is a solid.

11. The cured surfactant composition of any of claims 1-10, wherein the carrier is a powder.

12. The cured surfactant composition of any of claims 1-9, wherein the carrier is a liquid.

13. The cured surfactant composition of any of claims 1-12, wherein the carrier has a water solubility of about 0.2g/L or greater at 20 ℃.

14. The cured surfactant composition of any of claims 1-13, wherein the cured surfactant composition has less than about 5 wt% water.

15. The cured surfactant composition of any of claims 1-14, wherein the cured surfactant composition contains at least about 10 wt% active surfactant.

16. The cured surfactant composition of any of claims 1-15, wherein the cured surfactant composition contains at least about 25 wt% active surfactant.

17. The cured surfactant composition of any of claims 1-16, wherein the cured surfactant composition contains at least about 50 wt% active surfactant.

18. A method of making the cured surfactant composition of any one of claims 1-17, comprising:

adding the liquid surfactant and the carrier to a drying apparatus;

drying the liquid surfactant and carrier to form a cured surfactant composition;

wherein the liquid surfactant is cured in the cured surfactant composition, and

wherein the cured surfactant composition has less than about 5 wt% water.

19. The method of curing a surfactant according to claim 18, wherein the drying device is a continuous tunnel dryer, rotary dryer, vacuum dryer, tower shrinker, vibratory transport shrinker, drum dryer, screw transport dryer, fluidized bed, spouted bed, pneumatic conveyor, spray dryer, or a combination thereof.

20. The method according to any one of claims 18 to 19, wherein there are at least two drying devices placed in series or in parallel.

21. The method of any one of claims 18 to 20, wherein the drying process is performed in a batch system.

22. The method of any one of claims 18-21, wherein the drying process is performed in a continuous system.

23. The method of any one of claims 18 to 22, wherein the drying apparatus comprises a fluidized bed.

24. The method of claim 23, wherein the fluidized bed has a liquid flow rate of between about 0.001 and about 0.15lb/min of pounds of bed material.

25. The method of any one of claims 23-24, wherein the fluidized bed has an atomization pressure of between about 0psig and about 100psig per nozzle.

26. The method of any one of claims 23 to 25, wherein the fluidized bed has an air velocity of between about 1 and about 100 feet per second.

27. The method of any one of claims 23-26, wherein the method employs a coalescence process and the support is a solid.

28. The method of any one of claims 23 to 27, wherein the method employs a granulation process and the carrier is a liquid.

29. A solid cleaning composition comprising:

the cured surfactant composition of any one of claims 1-17; and a curing agent.

30. The cleaning composition of claim 29, wherein the cleaning composition is a manual dishwashing composition, a laundry composition, or a hard surface composition.

31. The cleaning composition of any one of claims 29-30, further comprising an alkalinity source selected from the group consisting of: alkali metal hydroxides, alkali metal carbonates, metal silicates, metal borates, alkanolamines, and combinations thereof.

32. The cleaning composition of claim 31, wherein the alkalinity source is in an amount between about 0.01 wt.% and about 99 wt.% of the cleaning composition.

33. The cleaning composition of any one of claims 31-32, wherein the alkalinity source is in an amount sufficient to provide a pH in a use solution of between about 7 and about 14.

34. The cleaning composition of any one of claims 31-33, wherein the cleaning composition provides a pH of between about 1 and about 7 in a use solution.

35. The cleaning composition of any one of claims 31-34, further comprising an additional surfactant selected from the group consisting of: nonionic surfactants, cationic surfactants, anionic surfactants, semi-polar nonionic surfactants, amphoteric surfactants, zwitterionic surfactants, and combinations thereof.

36. The cleaning composition of any one of claims 31-35, wherein the cleaning composition is a granular solid, a granulated solid, a cast solid, an extruded solid block, or a pressed solid.

37. The cleaning composition of claim 36, wherein the cleaning composition is a pressed solid.

38. The cleaning composition of any one of claims 29-37, further comprising at least one of the following additional ingredients: an acid source, an activator, an anti-redeposition agent, a bleaching agent, a chelating agent, a dye, an odorant, a filler, a functional polydimethylsiloxane, a hardener, a hydratable salt, a polymer, or a disinfectant.

39. A method of cleaning a surface comprising:

dissolving the cleaning composition of any one of claims 29-38 to form a liquid cleaning composition; and contacting the surface with the liquid cleaning composition.

40. The method of claim 39, wherein the liquid cleaning composition is diluted.

41. The method of claim 40, wherein the dilution of the liquid cleaning composition is performed after the dissolution of the solid cleaning composition and before contacting the surface with the liquid cleaning composition.

42. The method of any one of claims 39-41, wherein the surface comprises a hard surface, an appliance, or an article of clothing.

43. The method of any one of claims 39-42, further comprising rinsing the surface with water.

44. The method of any one of claims 39 to 43, wherein the cleaning composition provides substantially similar foaming characteristics as a cleaning composition having the same ingredients except that the cured surfactant composition is a liquid surfactant.

Technical Field

The present disclosure relates to curing liquid amine oxide, sulfobetaine, and/or betaine surfactants with a carrier. In particular, the present invention relates to curing liquid amine oxide, betaine, and sulfobetaine surfactants using a drying apparatus, wherein the feed composition contains at least one surfactant and a carrier.

Background

Many amine oxide, betaine, and sulfobetaine surfactants are only available in liquid form. It is desirable to provide many such surfactants in solid form to make solid cleaning compositions. Because many of these surfactants are only available in liquid form, they cannot be easily incorporated into solid formulations or are limited in the active concentration that can be included in the formulation.

Attempts have been made in the past to include certain liquid surfactants in solid form; however, these have been largely unsuccessful for a variety of reasons. Liquid amine oxides, betaines and sultaines cannot be converted to solid surfactants while maintaining surfactant efficacy. This has made the performance of solid cleaning compositions less desirable. Another problem is that cured amine oxide, betaine and sulfobetaine surfactants have generally been found to be sticky and thus suffer from clumping, compaction and coalescence, which has made packaging, storage, proper dosing and dispersion difficult in the manufacturing process. In addition, some processes for curing liquid amine oxides, betaines, and sulfobetaines require a substantial amount of binder and/or carrier, thereby reducing the active concentration of surfactant in the final product. Other efforts to solidify liquid surfactants have been made by using compounds that are not sufficiently water soluble, for example compounds having a solubility of about 0.2g/L or less at 20 ℃, such as fumed silica; this constitutes a problem for both the formulation and the end use, which is usually in water. Therefore, improvements are needed.

Accordingly, it is an object of the claimed invention to develop solidified amine oxide, betaine, and/or sulfobetaine compositions from liquid amine oxides, betaines, and/or sulfobetaines, and methods of making the compositions.

It is another object of the present invention to provide free-flowing cured amine oxide, betaine and/or sulfobetaine compositions.

It is another object of the present invention to provide cleaning compositions comprising cured amine oxide, betaine and/or sulfobetaine compositions.

Other objects, advantages and features of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings.

Detailed Description

The present disclosure relates to the curing of liquid amine oxide, betaine, and/or sulfobetaine surfactants with a carrier to form a cured surfactant composition. Cured surfactant compositions have many advantages over existing formulations that include the same surfactants as those already in liquid form, which hampers or prohibits their use in certain types of solid formulations, including but not limited to pressed solids. For example, many amine oxides, betaines and sultaines are found in liquid form and are currently limited by commercially available solid actives. The conversion of liquid surfactants into cured surfactant compositions enables their use in higher concentrations in solid compositions and expands their usefulness in solid formulations. Unexpectedly, it has been found that the cured liquid amine oxide, betaine, and sulfobetaine surfactants in the cured surfactant compositions provide substantially similar performance with respect to foam and soil removal characteristics, which is an indicator of overall good surfactant performance. This demonstrates the usefulness of the cured surfactant composition in a solid cleaning composition (including but not limited to pressed solids). Additionally, as described herein, it has been found that the cured liquid surfactant composition can be prepared using the carrier alone without the need for a binder. This can increase the concentration of the liquid surfactant.