METHOD FOR PRODUCING MOLDED ARTICLE BY PRESS MOLDING THERMOPLASTIC RESIN SHEET OR FILM
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Apr 12, 2016
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Apr 16, 2015
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Abstract
A method for producing a hot-press-molded article having an exceptional appearance, while preventing the generation of holes or cracks, by hot-press molding a sheet and film of a thermoplastic resin that contains an inorganic filler. The method includes press molding a resin sheet or resin film that contains a thermoplastic resin and fibrous inorganic filler between an upper mold and a lower mold, wherein the resin sheet contains 40-80 parts by mass of the thermoplastic resin and 20-60 parts by mass of the fibrous inorganic filler in 100 parts by mass of the resin sheet, the thickness of the resin sheet is 0.3-1.2 mm, the average fiber length of the fibrous inorganic filler in the molded article is 50-500 μm, and the length of the surplus portion of the resin sheet arranged on the concave part of the mold used in press molding is 5-50 mm.
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