Patent ID: 9540507
Date: 2017-01-10
CPC Classifications: B29B,C08G,C08K,C08L,Y10T

Claim:
1. An article comprising a polyester polymer phase, a polyamide polymer and a stabilizer, wherein the polyester polymer phase is at least 80% by weight of the composition of the article and comprises a sulfonated polyester polymer comprising a metal sulfonate salt wherein the metal sulfonate is copolymerized into the polyester polymer phase, the metal sulfonate is in the form of X-R where X is selected from the group consisting of an alcohol, a carboxylic acid or an epoxy and R is selected from the group consisting of —SO the polyamide polymer is a nylon and is present at a level of at least 1% by weight of the article, the stabilizer is present at a level of at least 100 parts stabilizer per million parts of the article and is present in the polyester polymer phase at at least 2% by weight of the total amount of the polyester polymer phase, and said article is a compartmentalized pellet of a core-sheath structure having the polyester polymer phase in the sheath and the polyamide polymer in the core.