Optical article comprising a hard coat, and production method
US10570310B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 11, 2015 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Dec 5, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A sol-gel composition for acrylic polymers-based substrate including at least a silane hydrolysate and at least an adhesion promoter including a dendritic polymer having hydroxyl and alkoxysilane groups at terminal ends thereof. An optical article coated with said sol-gel composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.