	US 12,473,402 B2
	Polyamides and corresponding polymer compositions, articles and methods for making and using
Stéphane Jeol, Saint-Genis-Laval (FR); and Joel Flores, Alpharetta, GA (US)
Assigned to SYENSQO SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
Appl. No. 17/635,784
Filed by SYENSQO SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
PCT Filed Aug. 25, 2020, PCT No. PCT/EP2020/073751 § 371(c)(1), (2) Date Feb. 16, 2022, PCT Pub. No. WO2021/037850, PCT Pub. Date Mar. 4, 2021.
Claims priority of provisional application 62/892,042, filed on Aug. 27, 2019.
Prior Publication US 2022/0289909 A1, Sep. 15, 2022
Int. Cl. C08G 69/36 (2006.01); C08J 5/04 (2006.01); C08K 7/14 (2006.01)

CPC C08G 69/36 (2013.01) [C08J 5/043 (2013.01); C08K 7/14 (2013.01); C08J 2333/24 (2013.01)]

22 Claims

1. A polyamide (PA) formed from the polycondensation of a reaction mixture (RM) comprising:

a diamine component (A) comprising:

55 mol % to 75 mol % of a C₄to C₈aliphatic diamine,

25 mol % to 45 mol % of a C₉to C₁₂aliphatic diamine, and

0.5 mol % to 10 mol % of a cycloaliphatic diamine containing a cyclohexyl group, which is 1,3-bis(aminomethyl)cyclohexane (1,3-BAC) or 1,4bis(aminomethyl)cyclohexane (1,4-BAC),

wherein mol % is relative to the total number of moles of diamines in the diamine component (A);

a dicarboxylic acid component (B) comprising:

90 mol % to 100 mol % of terephthalic acid, and

0 mol % to 10 mol % of a C₆to C₁₈aliphatic dicarboxylic acid or an C₈to C₁₈aromatic dicarboxylic acid distinct from terephthalic acid,

wherein mol % is relative to the total number of moles of dicarboxylic acids in the dicarboxylic acid component (B), and

wherein the reaction mixture (RM) is free of a cycloaliphatic dicarboxylic acid containing a cyclohexyl group and free of a C₈to C₁₀cycloaliphatic amino acid containing a cyclohexyl group.