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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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