-
公开(公告)号:US3904725A
公开(公告)日:1975-09-09
申请号:US36000273
申请日:1973-05-14
申请人: DU PONT
CPC分类号: B29C47/8875 , B29C47/0021 , B29C47/8845 , B29C47/887 , Y10S264/45
摘要: In the casting of molten thermoplastic film onto a moving quenching surface and pinning the edges of the film to the quenching surface an improvement is realized by applying additional pinning force to the edge portions of the extruded film to prevent localized thinning of the film.
摘要翻译: 在将熔融热塑性薄膜浇铸到移动的淬火表面上并将薄膜的边缘固定到淬火表面上时,通过对挤压薄膜的边缘部分施加附加的固定力来实现改进,以防止膜的局部变薄。