Primer composition for optical articles and optical articles
US8980431B2 · kind B2 · utility
12Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2011 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Sep 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A primer coating composition is provided for an optical article capable of forming a coating layer having excellent impact resistance, abrasion resistance, adhesion and high refractive index to an optical base material, having high refractive index, specifically a plastic lens without occurrence of poor appearance such as ununiformity, cloudiness, etc. and regardless of the materials of the plastic lens. A primer composition for an optical article may comprises urethane resin having a polycarbonate-derived skeleton, polyester resin, inorganic oxide fine particles and water, and water-soluble organic solvent, if necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.