THERMOPLASTIC COMPOSITION FOR USE IN HIGH IMPACT APPLICATIONS

摘要

A thermoplastic composition comprising from about 50 to about 99 by weight percent of a nylon 6,6 resin, from about 1 to about 50 by weight percent of a polymer performance modifier and about from 0.01 to about 25 by weight percent of a silicone based additive, wherein the silicone based additive comprises an ultrahigh molecular weight siloxane polymer that is unfunctionalized and non-reactive with the polyamide resin, wherein the thermoplastic composition has an impact strength value which is greater than the combination of the polyamide resin and the polymer performance modifier or the combination of the polyamide resin and the silicone based additive and wherein the thermoplastic composition has an ultimate tensile strength that is at least 80% that of the combination of the polyamide resin and the polymer performance modifier.

主权项

1. A process for increasing the impact strength in a polymer comprising the steps of adding a polymer performance modifier and a silicone based additive comprising an ultrahigh molecular weight siloxane polymer to a polyamide resin and mixing the polymer performance modifier, silicone based additive and polyamide resin to form a high impact polymer, wherein the a high impact polymer has an ultimate tensile strength that is at least 80% that of the combination of the polyamide resin and polymer performance modifier.