Invention Grant
- Patent Title: Conformable color shifting laminates
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Application No.: US17260459Application Date: 2019-07-15
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Publication No.: US11752729B2Publication Date: 2023-09-12
- Inventor: Huiwen Tai , Joan M. Frankel , Stephen P. Maki , Diane North , Robert R. Owings
- 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 Vincent L. Pham
- International Application: PCT/IB2019/056033 2019.07.15
- International Announcement: WO2020/016753A 2020.01.23
- Date entered country: 2021-01-14
- Main IPC: G02B5/08
- IPC: G02B5/08 ; B32B7/023 ; B32B7/022 ; B32B7/12 ; B32B15/08 ; B32B15/20 ; B32B27/06 ; G02B5/26

Abstract:
A stretchable reflective color-shifting film comprises a stretchable transparent polymer layer; a semi-transmissive metal layer; a transparent spacer layer; a reflective metal layer; an adhesive layer; and a stretchable base film layer. When the film body is stretched by 25%, the peak total reflectance stretched is at 80% of the peak total reflectance when the film body is unstretched according to the Total Reflectivity Test.
Public/Granted literature
- US20210308984A1 CONFORMABLE COLOR SHIFTING LAMINATES Public/Granted day:2021-10-07
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