阅读说明：本技术 用于生产具有改进的储存稳定性的含有tempol的氨基甲酸酯树脂组合物的方法 (Method for producing urethane resin composition containing TEMPOL with improved storage stability ) 是由 J·邦岑 A·沙玛克 R·德勒 A·布德尔 T·比格尔 B·格纳斯 P·威兰 S·迪克 于 2018-07-02 设计创作，主要内容包括：本发明涉及用于生产氨基甲酸酯(甲基)丙烯酸酯树脂组合物的方法。与由相同的原材料通过其它方式制备的组合物相比,该方法改进储存稳定性并降低组合物的反应性偏移。特别地,它降低在与支化氨基甲酸酯树脂的混合物中的TEMPOL的降解。(The present invention relates to a method for producing a urethane (meth) acrylate resin composition. The method improves storage stability and reduces the reactivity shift of the composition compared to compositions prepared by other means from the same raw materials. In particular, it reduces the degradation of TEMPOL in mixtures with branched urethane resins.)

1. A process for producing a reactive resin, the process comprising the steps of:

(a) preparing at least one backbone resin, which is a urethane (meth) acrylate resin, from at least one isocyanate, which is pMDI, and at least one hydroxyl-functionalized (meth) acrylate at a temperature T1 for a time period T1; and then immediately after the reaction to the skeleton resin is completed

(b) Stirring the reactive resin masterbatch containing the backbone resin resulting from step (a) at a temperature T2 for a period of time T2;

(c) after the end of the time period T2, adding at least one inhibitor, wherein the at least one inhibitor is piperidinyl-N-oxy or tetrahydropyrrole-N-oxy or a mixture thereof, and wherein the adding the at least one inhibitor is (i) performed immediately after the end of the time period T2 at the temperature T2 or (ii) performed after cooling the mixture resulting from step (b) to the temperature T3 after the end of the time period T3 starting at the end of the time period T2; and

(d) the reactive resin is obtained by adding at least one accelerator and optionally at least one reactive diluent before, simultaneously with or after the addition of the inhibitor.

2. The method of claim 1, wherein the at least one inhibitor is 4-hydroxy-2, 2,6, 6-tetramethylpiperidine-N-oxyl (TEMPOL).

3. The method according to claim 1 or claim 2, wherein the hydroxyl-functionalized (meth) acrylate is a hydroxyl-functionalized methacrylate and the urethane (meth) acrylate resin is a urethane methacrylate resin.

4. The method according to claim 3, wherein the hydroxyl-functionalized methacrylate is selected from the group consisting of hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, 3-hydroxybutyl methacrylate, 2-hydroxycyclohexyl methacrylate, glycerol 1, 3-dimethacrylate, glycerol methacrylate, and mixtures of two or more of these compounds.

5. The method of claim 4, wherein the hydroxyl-functionalized methacrylate is selected from the group consisting of 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, and a mixture of 2-hydroxypropyl methacrylate and 3-hydroxypropyl methacrylate.

6. The process of any one of claims 1 to 5, wherein T2 is from about 100 ℃ to about 120 ℃.

7. The method of any one of claims 1 to 6, wherein t2 is from about 1.5h to about 3 h.

8. The method as claimed in any one of claims 1 to 7, wherein the product of T2 times T2 expressed as h times ℃ h ° C is 200-300h ℃.

9. A reactive resin made by the method of any one of claims 1 to 8.

10. Reactive resin component (a) of the reactive resin system comprising the reactive resin according to claim 9.

11. Reactive resin system with a reactive resin component (a) according to claim 10 and a hardener component (B) containing an initiator.

12. The reactive resin system of claim 11, wherein at least one of components (a) or (B) contains an inorganic filler.

13. The reactive resin system according to any one of claims 11 or 12, wherein the reactive resin component (a) contains:

-at least one urethane (meth) acrylate as defined in claims 1 to 4, the urethane resin being formed from at least one hydroxyl-functionalized (meth) acrylate and a pMDI;

-at least one reactive diluent;

-at least one accelerator;

-at least TEMPOL as inhibitor of the piperidinyl-N-oxy type or of the tetrahydropyrrole-N-oxy type;

-at least one hydraulic or polycondensable inorganic compound; and

-at least one thixotropic agent;

and the hardener component (B) contains:

-at least one initiator for at least one urethane (meth) acrylate;

-at least one filler; and

-water.

14. The reactive resin system according to any one of claims 11 or 12, wherein the reactive resin component (a) contains:

-at least one urethane (meth) acrylate as defined above;

-TEMPOL；

-diisopropanol-p-toluidine;

-at least one further inhibitor selected from catechols and phenothiazines;

-cement;

-fumed silica; and

-a sand of quartz sand,

and the hardener component (B) contains:

-at least one initiator for initiating the polymerization of the urethane (meth) acrylate;

-fumed silica;

-quartz sand; and

-water.

15. Use of a reactive resin system according to any one of claims 11 to 14 for chemical fastening of anchoring means in boreholes or for structural bonding.