- 专利标题： ACRYLIC POLYVINYL ACETAL FILMS COMPRISING A SECOND LAYER
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申请号： EP16871763.5申请日： 2016-12-13
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公开(公告)号： EP3393799A2公开(公告)日： 2018-10-31
- 发明人: JANOSKI, Jonathan E. , THOMAS, Carla S. , SCHULTZ, Anthony F. , WHITING, Tien Y. H. , LEWANDOWSKI, Kevin M. , FANSLER, Duane D. , LYON, Keith R. , WEIKEL, Arlin L. , HEBRINK, Timothy J. , HULKE, Amanda K. , SHOCKEY, Eric D. , RENSTROM, Anthony M. , MACKEY, Sonja S. , KLUN, Thomas P.
- 申请人： 3M Innovative Properties Company
- 申请人地址： 3M Center Post Office Box 33427 St. Paul, MN 55133-3427 US
- 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： 3M Center Post Office Box 33427 St. Paul, MN 55133-3427 US
- 代理机构： Herzog, Fiesser & Partner Patentanwälte PartG mbB
- 优先权： US201562270750P 20151222; US201662346833P 20160607
- 国际公布： WO2017112453 20170629
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; B32B27/30 ; C08J5/18
摘要：
A film is described comprising a first film layer having a Tg ranging from 30° C. to 60° C. The first film layer comprises a (meth)acrylic polymer and polyvinyl acetal polymer composition. The film further comprises a second layer proximate the first film layer. The second layer is different than the first film layer. The second may be a cured (meth)acrylic polymer film or coating; a backing such as thermoplastic polymer, woven or nonwoven fabrics, metal foils, paper, foams; or a coverfilm such as a fluoropolymer.
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