发明名称 Method and device for producing continuous plastic films, webs and sheets capable of forming optical images
摘要 In a method and a device for continuously manufacturing films, webs, and sheets of plastics capable of forming optical images a melted plastic mass, pre-shaped as a sheet, is guided into a roller gap of a calender, the roller gap formed between a shaping engraving cylinder roller and a smoothing strip surrounding partially the shaping engraving cylinder roller. The shaping engraving surface of the cylinder roller is heated to melting temperature in the roller gap, wherein the melted plastic mass is applied directly onto the shaping engraving surface of the heated cylinder roller. A profiling is provided by cooling the melted plastic mass in the roller gap by heat removal on a side facing the shaping engraving surface.
申请公布号 US6972103(B1) 申请公布日期 2005.12.06
申请号 US20020088003 申请日期 2002.07.22
申请人 HEINRICH FRIEDRICH SCHROEDER 发明人 NAWRATH PETER
分类号 B29C43/24;B29C43/22;B29C47/32;B29C47/88;B29D11/00;(IPC1-7):B29C47/78 主分类号 B29C43/24
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