Patent ID: 8138244
Filing Date: 2012-03-20
Classification: C08K,C08L

Abstract:
1. A composition comprising, based on the total weight of the composition: from 20 to 90 wt. % of a polyester component comprising a modified poly(butylene terephthalate) copolymer, that (1) is derived from a poly(ethylene terephthalate) copolymer and (2) that has at least one residue derived from the poly(ethylene terephthalate) copolymer; from 5 to 35 wt. % of from 1 to 25 wt. % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; from greater than zero to 50 wt. % of a glass fiber having a non-circular cross-section; and from 0 to 5 wt. % of an additive selected from the group consisting of a mold release agent, an antioxidant, a thermal stabilizer, and a UV stabilizer; wherein the at least one residue derived from the poly(ethylene terephthalate) copolymer comprises mixtures of ethylene glycol and diethylene glycol groups; and wherein a molded article comprising the composition has an unnotched Izod impact strength at least 20% higher than for the same composition having the same amount of circular glass fibers, each measured at 23° C. in accordance with ASTM D256.