发明名称 METHOD FOR PRODUCING EXTRUDED RESIN SHEET
摘要 Disclosed is a method for producing an extruded resin sheet comprising: heat-melting a thermoplastic resin and then extruding it into a sheet-form through a die; pressure-forming the extruded molten thermoplastic resin with a first roll and a second roll; and further pressure-forming the formed resin with the second roll and a third roll while wrapping the formed resin around the second roll, wherein the first roll is a highly rigid metal roll, the second roll is an elastic roll having a metal thin film at its outer circumferential surface, and the third roll is a highly rigid metal roll. The present invention provides a method for producing an extruded resin sheet with excellent appearance.
申请公布号 US2009179344(A1) 申请公布日期 2009.07.16
申请号 US20080332091 申请日期 2008.12.10
申请人 SUMITOMO CHEMICAL COMPANY, LIMITED;ESCARBO SHEET CO., LTD. 发明人 MAEKAWA TOMOHIRO;HATAKEYAMA KAZUHIKO
分类号 B29C43/24 主分类号 B29C43/24
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