Abrasion resistant coating composition
US8128990B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a coating composition for an optical element, such as an ophthalmic lens. The coating composition includes a relatively rigid multifunctional monomer and a relatively flexible difunctional monomer. The rigid multifunctional monomer and the flexible difunctional monomer are capable of co-reacting to form an abrasion resistant coating on the optical element. The invention also provides a method of forming an abrasion resistant coating on an optical element, such as an ophthalmic lens. The method includes the steps of coating the optical element with a relatively rigid multifunctional monomer and a relatively flexible difunctional monomer, and polymerising the coating to form an abrasion resistant coating on the optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.