Cationic photopolymerization of diepisulfides and application to the manufacture of optical lenses
US6635195B1 · kind B1 · utility
1Cited by
7References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Feb 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for polymerizing/curing a photopolymerizable monomer composition comprising at least one diepisulfide monomer which comprises the steps of:a) mixing to the monomer composition an effective amount of a cationic photopolymerization initiator, andb) irradiating the mixture of a) with an ultraviolet radiation to at least partially cationically photopolymerize the monomer composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.