FIBER-REINFORCED THERMOPLASTIC RESIN MOLDED ARTICLE WITH EXCELLENT SURFACE APPEARANCE

摘要

PROBLEM TO BE SOLVED: To obtain a molded article with excellent appearance by compounding a resin ingredient prepd. by compounding a thermoplastic resin with a specified range of another thermoplastic resin whose softening point is at least a specified temp. lower than that of the thermoplastic resin with specified ranges of a carbon black and a fibrous filler. SOLUTION: A molded article prepd. by means of a gas assist injection molding method by using a thermoplastic resin compsn. wherein 100 pts.wt. resin ingredient consisting of 40-98 wt.% thermoplastic resin A and 60-2 wt.% thermoplastic resin B whose softening point is at least 17 deg.C lower than that for the thermoplastic resin A are compounded with 1-25 pts.wt. carbon black C and 10-190 pts.wt. fibrous filler D as a raw material, is provided. As polyamide resins as the thermoplastic resins A and B, polyamide resins obtd. by polycondensation of lactams with at least four membered ring orω-amino acids or polycondensation of dibasic acids and diamines are usually cited.