Glass filled copolymer products for thin wall and high surface gloss articles

摘要

Disclosed are compositions, glass filled compositions, articles made therefrom, and processes for making articles therefrom. In an embodiment, a composition can comprise: one or more polycarbonates wherein at least one of the polycarbonates is a polyester-polycarbonate having at least one unit derived from sebacic acid and has a biocontent of at least 5 weight % based upon a total weight of the polyester-polycarbonate, determined according ASTM-D6866; a glass content of 10 weight % or greater based upon a total weight of the composition; and an epoxy resin. The composition has a melt volume rate of greater than 10.5 cm3/10 minutes at 300° C./1.2 kg according to ASTM-D1238-10. A part molded having a 0.8 mm thickness molded from the composition has a gloss value of 89 or higher at 60°, according to ASTM-D523.

主权项

1. A composition comprising:
A polymer component comprising one or more polycarbonates wherein at least one of the polycarbonates is a polyester-polycarbonate having at least one unit derived from sebacic acid and a biocontent of at least 5 weight % based upon a total weight of the polyester-polycarbonate, determined according ASTM-D6866; a glass present in an amount of 10 to 50 weight % based upon a total weight of the composition; and an epoxy resin present in an amount of 0.01 to 10 weight % based on total weight of the polymer component; wherein at least one polyester-polycarbonate has: (a) a weight average molecular weight of 30,000 to 45,000 Daltons as measured by gel permeation chromatography using BPA polycarbonate standards, and a sebacic acid content of 7.0 mole % to 12.0 mole %; or (b) a weight average molecular weight of 15,000 to 28,000 Daltons as measured by gel permeation chromatography using BPA polycarbonate standards, and a sebacic acid content of 3.0 mole % to 7.0 mole %; wherein the composition has a melt volume rate of greater than 10.5 cm3/10 minutes at 300° C./1.2 kg according to ASTM-D1238-10, and wherein a part molded having a 0.8 mm thickness molded from the composition has a gloss value of 89 or higher at 60°, according to ASTM-D523.