Patent ID: 6271291
Filing Date: 2001-08-07
Classification: C08K

Abstract:
A copolyester composition which comprises:a. a copolyester comprising(1) from about 80 mole percent to about 100 mole percent of an acid selected from the group consisting of terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, and mixtures thereof, and, from about 0 to about 20 mole percent of one or more modifying acids, and(2) from about 80 mole percent to about 99 mole percent ethylene glycol, and from about 1 mole percent to about 20 mole percent of one or more modifying diols, andb. a quaternary ammonium salt having thermal stability at a temperature greater than 200.degree. C. wherein the quaternary ammonium salt is present in an amount ranging from greater than about 1.6 to about 10 percent by weight based on the total composition.