Semi-aromatic-polyamide-based flexible composition, process for preparing same and uses thereof

摘要

The present invention relates to a composition comprising: from 33 to 40% by weight of at least one crosslinked polyolefin obtained from at least one product (A) comprising an unsaturated epoxide and from at least one product (B) comprising an unsaturated carboxylic acid anhydride, from 3 to 10% by weight of at least one plasticizer, the rest being made up of at least one semi-aromatic polyamide, wherein the weight contents of (A) and (B), denoted respectively [A] and [B], are such that the [B]/[A] ratio is between 3 and 14. The present invention also relates to a process for preparing such a composition and also to the uses thereof.

主权项

1. A composition comprising—the weight percentages being given relative to the total weight of the composition—:
from 33 to 40% by weight of at least one crosslinked polyolefin, the crosslinked polyolefin being obtained from: at least one product (A) comprising an unsaturated epoxide, and at least one product (B) comprising an unsaturated carboxylic anhydride, from 3 to 10% by weight of at least one plasticizer, the rest being made up of at least one semiaromatic polyamide,the weight amounts of (A) and (B), written respectively as [A] and [B], being such that the ratio [B]/[A] is between 3 and 14,
wherein (A) is a polyolefin grafted with an unsaturated epoxide or a copolymer of an alpha olefin and an unsaturated epoxide, and (B) is a polyolefin grafted with an unsaturated carboxylic anhydride or a copolymer of an alpha olefin and an unsaturated carboxylic anhydride, at least one of A or B being a polyolefin.