| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin molded product excellent in wood-like appearance regardless of the kind of a resin to be used. SOLUTION: In the resin molded product manufactured by the extrusion molding of a resin raw material prepared by forming a colored master batch, which is composed of a colorant and a thermoplastic resin, into a lumpy form to mix the same with a base material thermoplastic resin, the master batch is formed into lumps each of which has a mass of 0.1-10 g on an average and the number of the lumps of the master batch is 0.3-100 per 1 kg of the resin raw material. When the resin raw material, which is prepared by adding 0.03-10 mass% of the lumps to the resin raw material to mix them with the resin raw material, is subjected to extrusion molding, the lumpy master batch is extruded into the base material thermoplastic resin in a stripe form and the extruded resin molded product has wood-like appearance. COPYRIGHT: (C)2007,JPO&INPIT
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