PURPOSE: To provide a polyphenylene sulfide resin composition reduced in the burr formation and improved in weld strength by mixing a specified polyphenylene sulfide resin with a specified liquid crystal polymer, a specified epoxy compound and a filler.
CONSTITUTION: 100 pts.wt. resin composition comprising 95-5wt.% polyphenylene sulfide resin having a number-average molecular weight of 7000-15000 (gel permeation chromatography using a 1-chloronaphthalene solvent), having no cross- linkage and containing 70mol% or above repeating units of formula I and 5-95wt.% liquid crystal polymer capable of forming an anisotropic melt phase when melted is mixed with 0.1-5 pts.wt. at least one epoxy compound selected from between the compounds of formulas II and III (wherein R1 is -OG, a group of formula IV or a group of formula V; R2 is -COOG or R1; and G is a group of formula VI) and 0-400 pts.wt. filler, and the resulting mixture is melt-kneaded at 280-380°C.
AKIYAMA FUMIO
ISHIO ATSUSHI
