Invention Grant
- Patent Title: Acrylic polyvinyl acetal films and composition
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Application No.: US15175458Application Date: 2016-06-07
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Publication No.: US10167386B2Publication Date: 2019-01-01
- Inventor: Jonathan E. Janoski , Anthony F. Schultz , Keith R. Lyon , Ronald S. Steelman , Kevin M. Lewandowski , Corinne E. Lipscomb , Terry R. Hobbs , Arlin L. Weikel , Jayshree Seth , Duane D. Fansler , Hidetoshi Abe
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Carolyn A. Fischer
- Main IPC: C08L29/14
- IPC: C08L29/14 ; B32B27/08 ; C08J5/18 ; C08L33/08 ; C09D133/08 ; C08L33/06 ; B32B27/30 ; C09J7/22 ; C09J7/20 ; C09J133/08

Abstract:
A film is described comprising a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. In some embodiments, the film has a glass transition temperature (i.e. Tg) ranging from 30° C. to 60° C. In some embodiments, the film has a gel content of at least 20% or greater. In some embodiments, the film has an elongation at break of at least 175%. The film typically comprises photoinitiator as a result of the method by which the film was made. The film may be a monolithic film or a layer of a multilayer film.
Public/Granted literature
- US20160289440A1 ACRYLIC POLYVINYL ACETAL FILMS & COMPOSITION Public/Granted day:2016-10-06
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