Reactive dyes for contact lenses
US8865929B2 · kind B2 · utility
3Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jul 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for preparing a polymerizable monomer-dye compound is provided in which a monomer, a reactive dye, and base are combined under substantially anhydrous reaction conditions to form the polymerizable monomer-dye compound, wherein the monomer comprises a pendant reactive group that covalently links to the reactive dye to form the monomer-dye compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.