Patent ID: 6818293
Filing Date: 2004-11-16
Classification: C08K,C08L,D01F,Y10T

Abstract:
A polyester fiber comprising:i) dicarboxylic acid residues comprising about 60 to 100 mole % of a first dicarboxylic acid residue selected from the group consisting of terephthalic acid, naphthalene-dicarboxylic acids, cyclohexanedicarboxylic acids, and mixtures thereof; and from 0 to about 40% of a second dicarboxylic acid residue selected from the group consisting of aromatic dicarboxylic acids containing from about 8 to about 16 carbon atoms, aliphatic dicarboxylic acids containing from about 4 to about 16 carbon atoms, cycloaliphatic dicarboxylic acids containing from about 6 to about 16 carbon atoms, and mixtures thereof; ii) diol residues comprising about 50 to 100 mole % of a first diol residue selected from the group consisting of 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, 1,3-propanediol, and mixtures thereof; and from 0 to about 50 mole % of a second diol residue selected from the group consisting of aliphatic diols containing from 2 to about 16 carbon atoms, cycloaliphatic diols containing from about 6 to about 16 carbon atoms, and mixtures thereof; and iii) about 0.05 weight % (wt %) to about 5 wt %, based on the total weight of said polyester, of an epoxide additive comprising an epoxide compound with at least 2 epoxy groups per molecule.