Adhesion primer for laminate in cast lenses
US11378720B2 · kind B2 · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Mar 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the disclosure relate to a primer composition for increasing the adhesion of a polarizing film laminate to a cast-polymerized lens. The primer includes an acrylic polymer, polyurethane acrylate oligomer, a solvent, a UV curing agent, and a monomer which promotes adhesion to a cast-polymerized lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.