| 发明名称 |
Method of improving the flatness of compression-rolled plastic film |
| 摘要 |
The flatness of compression-rolled plastic film is improved by passing the film under tension over heated rolls, stretching the heated film, setting the stretched film by passing it over a tempering roll, and then cooling the set film by passing it over a cooling roll.
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| 申请公布号 |
US4310485(A) |
申请公布日期 |
1982.01.12 |
| 申请号 |
US19800191472 |
申请日期 |
1980.09.26 |
| 申请人 |
CROWN ZELLERBACH CORPORATION |
发明人 |
DAUBER, RIKHARD C. |
| 分类号 |
B29C59/00;B29C53/16;B29C55/00;B29C55/02;B29C55/06;B29C61/00;B29D7/01;C08J5/18;(IPC1-7):B29C17/02;B29C25/00 |
主分类号 |
B29C59/00 |
| 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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