UV curable coating compositions for improved abrasion resistance
US10459248B2 · kind B2 · utility
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11References
19Claims
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Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic article and methods of manufacturing the ophthalmic article are described herein. The ophthalmic article can include a first coating and a second coating. The first coating can include an abrasion resistant coating that includes flexible materials. The abrasion resistant coating can be radiation cured. The second coating can include a sputter-applied anti-reflective (AR) coating. Such an ophthalmic article can have a Bayer value of at or between 1.25 and 2.6, between 1.25 and 2.0 or 1.25 and 1.75; and a hand steel wool value of 3 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.