- 专利标题: COEXTRUDED POLYMERIC LAYER
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申请号: US17310942申请日: 2020-03-11
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公开(公告)号: US20220184916A1公开(公告)日: 2022-06-16
- 发明人: David F. Slama , Garth V. Antila , Brent R. Hansen , Caitlin E. Meree
- 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
- 国际申请: PCT/IB2020/052165 WO 20200311
- 主分类号: B32B3/30
- IPC分类号: B32B3/30 ; B32B5/02 ; B32B5/18 ; B32B7/022 ; B32B27/06 ; B32B37/15
摘要:
Coextruded polymeric layer having first and second opposed major surfaces, the coextruded polymeric layer comprising foam and the coextruded polymeric layer comprising features extending from or into the first major surface by at least 100 micrometers, the first major surface comprising a first material having a first percent elongation at break, the second major surface comprising a second material having a second percent elongation at break, wherein the first percent elongation at break is greater than 100 percent of the second percent elongation at break. Coextended polymeric layers described herein are useful, for example, in vibration damping applications (e.g., a vibration damping laminate comprising a kinetic spacer comprising the coextruded polymeric layers).
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