Aliphatic polyesterpolyol-based urethane methacrylate edge coated glass polarized lens
US8083349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/033
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An edge coated glass polarized lens includes a lens body and an edge coating made from a UV curable material having a composition including: an aliphatic polyesterpolyol based urethane methacrylate formed by reaction of reactants including an aliphatic polyesterpolyol, a hydroxyalkyl methacrylate, and a diisocyanate, and having a number average molecular weight ranging from 800 to 4500; a reactive diluent including a methacrylate monomer; an adhesion enhancer including a silane material selected from methacrylate-functional silane, amino methacrylate-functional silane, vinyl-functional silane, and combinations thereof; and a photo initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.