| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an extrusion molded product of such high thermal dimensional stability as to be sufficiently reduced in coefficient of linear expansion and usable outdoors, even if using a molding compound prepared by highly filling a thermoplastic resin with a needle or flaky inorganic filler. SOLUTION: The molded product is obtained by feeding a vented extruder with a resin composition comprising 100 pts.wt. of the thermoplastic resin and 20-60 pts.wt. of the needle or flaky inorganic filler and subjecting the resin composition to extrusion molding at 1.4-2 in a maximum filling ratio for the resin composition in an unmelted part in the extruder. COPYRIGHT: (C)2004,JPO |
