| 摘要 |
PROBLEM TO BE SOLVED: To provide a wood-containing polyvinyl chloride resin composition which shows an excellent molding processability and yields a molded product showing an excellent surface appearance and woody texture. SOLUTION: The composition is prepared by compounding, by mass, (B) 5-150 pts. wood flour with an average grain size of 50-400μm, (C) 0.5-4 pts. pyrolytic foaming agent and (D) 0.5-5 pts. first acrylic copolymer with (A) 100 pts.wt. polyvinyl chloride resin. Here, the first acrylic copolymer (D) contains 40-90% alkyl methacrylate unit with an ester group having 1-18 carbons and 10-60% alkyl acrylate unit with an ester group having 1-18 carbons, has a mass average molecular weight of 100,000-500,000 and contains 10-50% components having molecular weights of≤50,000. COPYRIGHT: (C)2004,JPO
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