Patent ID: 6444283
Filing Date: 2002-09-03
Classification: C08L,Y10T

Abstract:
A polymer blend comprising:I. from 80 to 97.5 weight % of a semi-crystalline polyester, which comprises the residues of (A) a dicarboxylic acid component comprising repeat units from at least about 80 mole % of terephthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid or a mixture thereof; and (B) a glycol component comprising repeat units from at least about 85 mole % ethylene glycol, wherein components A) and B) are based on 100 mole % dicarboxylic acid and 100 mole % of glycol; and II. from 20 to 2.5 weight % of a low molecular weight polyamide, having a number average molecular weight of less than about 15,000, having the repeating unit A-D, wherein A is the residue of a dicarboxylic acid comprising adipic acid, isophthalic acid, terephthalic acid, 1,4-cyclohexanedicarboxylic, resorcinol dicarboxylic acid, or naphthalenedicarboxylic acid, or a mixture thereof, and D is a residue of a diamine comprising m-xylylene diamine, p-xylylene diamine, hexamethylene diamine, ethylene diamine, or 1,4-cyclohexanedimethylamine, or a mixture thereof, wherein components I and II total 100weight % of the polymer blend.