| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject molded product hardly causing the deformation or warpage even when the wall thickness is small by using a composition containing a specific chlorinated vinyl chloride resin, an acrylic processing aid having a specific average molecular weight and a wood flour having a specified average particle diameter. SOLUTION: This molded product is obtained by molding a composition containing (A) 100 pts.wt. chlorinated vinyl chloride resin, prepared by post- chlorinating a vinyl chloride resin having 500-1,200 average polymerization degree (a homopolymer or a copolymer with other monomers) and having 63-67 wt.% chlorine content, (B) 3-20 pts.wt. acrylic processing aid having 2,000,000-5000,000 average molecular weight [e.g. commercially available Kaneace PA-30 (R) (manufactured by Kaneka Corporation) or a copolymer of methyl methacrylate as a principal component and an acrylic ester monomer] and (C) 10-100 pts.wt. wood flour having 30-300μm average particle diameter (e.g. preferably the wood flour of a coniferous tree such as a Japanese cedar, a lauan or a Japanese cypress), as necessary, adding a stabilizer, a lubricant, a reinforcing agent, a filler, a pigment, etc., thereto and molding the resultant mixture according to an extrusion molding method, etc.
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