发明授权
- 专利标题： Film formation method capable of preventing fluctuation of ribbon
- 专利标题（中）： 能够防止色带波动的成膜方法
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申请号： US09911394申请日： 2001-07-25
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公开(公告)号： US06767500B2公开(公告)日： 2004-07-27
- 发明人: Hidekazu Yamazaki , Yukihiro Katai , Toshikazu Nakamura
- 申请人： Hidekazu Yamazaki , Yukihiro Katai , Toshikazu Nakamura
- 优先权： JP2000-223250 20000725; JP2001-071541 20010314
- 主分类号： B29C4124
- IPC分类号： B29C4124
摘要：
A film is formed by casting a ribbon on a support from a flow cast die while pulling said ribbon toward said support by providing a decompression area. The decompression area is divided into a middle portion, a left portion and a right portion. Degrees of decompression in these three portions satisfy the following formulae: 0
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