US 12,441,867 B2
Stabilizing component for polyamide resin composition
Bradley J. Sparks, Houston, TX (US); and Nanayakkara Somasiri, Houston, TX (US)
Assigned to Ascend Performance Materials Operations LLC, Houston, TX (US)
Filed by Ascend Performance Materials Operations LLC, Houston, TX (US)
Filed on Sep. 21, 2022, as Appl. No. 17/949,545.
Claims priority of provisional application 63/246,371, filed on Sep. 21, 2021.
Prior Publication US 2023/0092193 A1, Mar. 23, 2023
Int. Cl. C08K 3/105 (2018.01); C08K 3/32 (2006.01)
CPC C08K 3/105 (2018.01) [C08K 3/32 (2013.01); C08K 2201/014 (2013.01)] 18 Claims
 
1. A polyamide resin composition consisting of:
a resin component consisting of at least 75 wt. % of a polyamide formed from an aliphatic diamine having 6 or more carbon atoms and an aliphatic diacid having 6 or more carbon atoms, and no more than 25 wt. % of polyamide formed from caprolactam;
a copper complex; and
a copper salt and alkali metal halide, wherein the amount of copper provided by the copper complex and copper salt is in a weight ratio from 10:90 to 90:10; and
additives selected from the group consisting of lubricants, dyes, pigments, optical brightener, UV stabilizers, and mixtures thereof.