发明名称 UNIT FOR PRODUCTION OF TUBULAR RESIN FILM
摘要 A manufacturing apparatus is provided for manufacturing a tubular resin film of high quality and little thickness variations, which is stretched and given an orientation, and suitable as retardation film or the like. It comprises a stretching section (6) for stretching the tubular resin film (20), and a maintaining section (7) for maintaining a shape of said tubular resin film (20) stretched. Further, said stretching section (6) is arranged to apply a stretching force to said tubular resin film for longitudinally and/or circumferentially stretching said tubular resin film (20). <IMAGE>
申请公布号 KR101006419(B1) 申请公布日期 2011.01.06
申请号 KR20057014071 申请日期 2003.12.24
申请人 发明人
分类号 B29C47/20;B29C55/22;B29C47/00;B29C47/90;B29C55/24;B29C55/26;B29L7/00;B29L23/00 主分类号 B29C47/20
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