Patent ID: 8575255
Filing Date: 2013-11-05
Classification: B60C,B82Y,C08J,C08K,Y10T

Abstract:
1. A polymer composition having enhanced barrier properties comprising a polymer base and alumina particulates dispersed within the polymer base, wherein the polymer base is selected from the group consisting of polyamide 6, polyamide 6,6, polyamide 11, polyamide 12, and mixtures thereof, and wherein the alumina particulates have a secondary aspect ratio of at least about 3:1; at least 50wt% of the alumina particulates is transitional alumina; the alumina particulates have been obtained by a seeding processing route and have a BET specific surface area of about 30 m the polymer composition is in form of a film having an Oxygen Transfer Index of at least about 150.