- 专利标题: METHODS AND SYSTEMS FOR MEASUREMENT AND CONTROL OF CIRCUMFERENTIAL LAYER DISTRIBUTION IN BLOWN FILMS
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申请号: EP21824809.4申请日: 2021-06-09
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公开(公告)号: EP4168234A1公开(公告)日: 2023-04-26
- 发明人: MERRILL, William W. , BHAT, Pradeep P. , CARUSO, Francis T. , HOFELDT, David L. , NGUYEN, David D. , LI, Ziang
- 申请人: 3M Innovative Properties Company
- 申请人地址: US Saint Paul, Minnesota 55133-3427 3M Center Post Office Box 33427
- 代理机构: Mathys & Squire
- 优先权: US202063041446 P 20200619
- 国际公布: WO2021255582 20211223
- 主分类号: B29C48/335
- IPC分类号: B29C48/335 ; B29C48/32 ; B29C48/92 ; G01B11/06 ; G01B11/02 ; B29C48/10
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