Invention Grant
- Patent Title: Low refractive index layer having a plurality of voids
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Application No.: US14825497Application Date: 2015-08-13
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Publication No.: US09726792B2Publication Date: 2017-08-08
- Inventor: Suman K. Patel , William D. Coggio , Mikhail L. Pekurovsky , Kenneth L. Smith , Michael B. Free , William B. Kolb
- 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
- Main IPC: G02B5/124
- IPC: G02B5/124 ; B32B3/00
Abstract:
Retroreflective articles and constructions are disclosed. One exemplary retroreflective article or construction includes a retroreflective layer and a low refractive index layer. In one exemplary embodiment, the low refractive index layer is adjacent to at least a portion of a retroreflective structured major surface of the retroreflective layer.
Public/Granted literature
- US20150346400A1 LOW REFRACTIVE INDEX LAYER HAVING A PLURALITY OF VOIDS Public/Granted day:2015-12-03
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