Patent ID: 7186764
Filing Date: 2007-03-06
Classification: C08K

Abstract:
1. A reinforced polytrimethylene terephthalate resin composition comprising a polytrimethylene terephthalate and an inorganic filler, wherein the inorganic filler has a concentration within the range from 5 to 70% by weight based on a total weight of the resin composition, wherein a surface of the inorganic filler is grafted with a polytrimethylene terephthalate layer having a concentration in the range from 0.1 to 2 parts by weight based on 100 parts by weight of the inorganic filler, wherein an intrinsic viscosity of the polytrimethylene terephthalate present in the resin composition is 0.7 dl/g or more, and wherein a melt viscosity measured at a resin temperature of 260° C. and a shear rate of 1 rad/sec of a resin component present in the resin composition is not more than 600 Pa·s, wherein the resin component is a remaining portion after eliminating the inorganic filler from the resin composition, and wherein the inorganic filler is glass fiber and optionally at least one inorganic filler other than glass fiber.