Patent ID: 6627324
Filing Date: 2003-09-30
Classification: B32B,B82Y,C08J,C08K,Y10T

Abstract:
A single or multi-layer film having at least one layer (I) of a polyamide composition having nanoscale nucleating particles dispersed therein wherein said nanoscale particles have an aspect ratio of at least 10 in two randomly selectable directions, and, on a number-weighted average a dimension of less than 100 nm in at least one direction that is randomly selectable, the amount by weight of the nanoscale particles, based on the total weight of the polyamide forming the layer (I), is between 10 ppm and 2000 ppm, and wherein the polyamide composition forming the layer (I) is selected from the group consisting of polyamide 6/66, partially aromatic copolyamides having mole-weighted aromatic monomer contents of between 3% and 15% and mixtures of at least one of polyamide 6/66 and polyamide 6 with partially aromatic homopolyamides or copolyamides having mole-weighted aromatic monomer contents of between 3% and 15% by weight of mixture.