阅读说明：本技术 用于提高聚酰胺聚合物的抗聚集性的方法和组合物 (For improving the method and composition of the resistance to aggregation of polyamide polymer ) 是由 V.内利亚潘 于 2018-04-18 设计创作，主要内容包括：本公开内容提供了一种浸出方法和由此产生的组合物,其防止或显著减少聚酰胺6/66共聚物的聚集。所述浸出方法包括在聚集抑制剂的存在下,将热水应用于聚酰胺6/66共聚物,以从共聚物分离未反应的己内酰胺和小分子量低聚物,同时防止或显著减少共聚物的聚集。(This disclosure provides a kind of leaching method and resulting composition, the aggregation of polyamide 6/66 copolymers is prevented or substantially reduced.The leaching method is included in the presence of agglutination inhibitor, and hot water is applied to polyamide 6/66 copolymers, to separate unreacted caprolactam and small-molecular-weight oligomer from copolymer, while preventing or substantially reducing the aggregation of copolymer.)

1. a method of improve the resistance to aggregation of polyamide polymer comprising following steps:

It is described total from caprolactam monomer and adipic acid and hexamethylene diamine monomer polymerization at least one polyamide copolymer Polymers includes the total moles based on caprolactam monomer and adipic acid and hexamethylene diamine monomer, 80 mol% and 99 mol% Between caprolactam monomer and 1 mol% and 20 mol% between adipic acid and hexamethylene diamine monomer；With

At a temperature of between 80 DEG C and 140 DEG C, in the presence of agglutination inhibitor, leached with aqueous solution described at least one poly- Amide copolymer.

2. the method for claim 1 wherein agglutination inhibitor includes at least one formula C_10-25The molecule of OOH.

3. method for claim 2, wherein agglutination inhibitor includes stearic acid.

4. the method for claim 1 wherein agglutination inhibitor includes at least one formula C_10-25CONH₂Molecule.

5. method for claim 4, wherein agglutination inhibitor includes stearmide.

6. the method for claim 1 wherein the amount of the agglutination inhibitor used in leaching step is total solid based on copolymer Between 0.05 wt.% and 2 wt.% of body weight.

7. the method for claim 1 wherein at least one polyamide copolymer include based on caprolactam monomer and oneself The total moles of diacid and hexamethylene diamine monomer, caprolactam monomer and 15 mol % between 80 mol % and 85 mol % And 20 adipic acid and hexamethylene diamine monomer between mol %.

8. the spherolite formed by polymer base composition is used for melt processed production finished product, the polymer base combination Object includes:

At least one polyamide copolymer, with acid/amine end and by caprolactam monomer and adipic acid and hexa-methylene Diamine monomer is polymerized, and the copolymer includes based on caprolactam monomer and adipic acid and hexamethylene diamine monomer Total moles, adipic acid between caprolactam monomer and 1 mol % and 20 mol % between 80 mol % and 99 mol % and Hexamethylene diamine monomer, wherein there is less acid/amine end on the surface of spherolite than the core of spherolite.

9. the spherolite of claim 8 is measured according to ASTM D4179-11 by compression verification device wherein the spherolite has The crush resistance between 5 ft lbfs and 55 ft lbfs.

10. the spherolite of claim 8, wherein the amine of polyamide copolymer/acid termination degree is between 30 and 70 mEq/kg.

11. the spherolite of claim 8, wherein at least one polyamide copolymer include based on caprolactam monomer and The total moles of adipic acid and hexamethylene diamine monomer, caprolactam monomer and 15 mol between 80 mol % and 85 mol % Adipic acid and hexamethylene diamine monomer between % and 20 mol %.

12. a kind of method for the resistance to aggregation for improving polyamide polymer comprising following steps:

At least one polyamide copolymer is formed, the copolymer is by caprolactam monomer and adipic acid and hexamethylene diamine Monomer polymerization forms, and including the total moles based on caprolactam monomer and adipic acid and hexamethylene diamine monomer, and 80 The adipic acid and hexamethylene diamine list between caprolactam monomer and 1 mol% and 20 mol% between mol% and 99 mol% Body, at least one polyamide copolymer have acid/amine end of initial concentration；With

In the presence of agglutination inhibitor, at least one polyamide copolymer is leached with aqueous solution, so that acid/amine end Initial concentration reduces by 5% to 25%.

13. the method for claim 12, wherein leaching step carries out at a temperature of between 80 DEG C and 140 DEG C.

14. the method for claim 12, wherein agglutination inhibitor includes at least one formula C_10-25The molecule of OOH.

15. the method for claim 12, wherein agglutination inhibitor includes at least one formula C_10-25CONH₂Molecule.

Embodiment

Crush resistance is determined using compression verification device to test preparation according to ASTM D4179-11, and uses titration skill Art test formulation is to determine termination degree.