Photochromic polyurethane laminate
US10315397B2 · kind B2 · utility
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30References
17Claims
0Family size
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Key dates
| Filing date | Aug 29, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31554
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Photochromic polyurethane laminates and methods for the formation of same wherein a photochromic polyurethane layer of the laminate is interposed between two primer coated transparent resin sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.