- 专利标题: LOW SHRINK POLYESTER FILMS AND METHOD OF MAKING
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申请号: US17723683申请日: 2022-04-19
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公开(公告)号: US20220234276A1公开(公告)日: 2022-07-28
- 发明人: John P. Purcell , James B. Svacha , Stephen A. Johnson , Timothy J. Lindquist , Grant F. Tiefenbruck , Chad R. Wold
- 申请人: 3M INNOVATIVE PROPERTIES COMPANY
- 申请人地址: US MN St. Paul
- 专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人地址: US MN St. Paul
- 主分类号: B29C55/16
- IPC分类号: B29C55/16 ; B29C35/04 ; B29C55/00 ; B29C55/02 ; B29C55/14 ; B32B7/06 ; B32B25/08 ; B32B25/14 ; B32B27/08 ; B32B27/32 ; B32B27/36 ; B32B38/00
摘要:
A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.
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