Photopolymerizable composition based on polyiso(thio)cyanate monomers and on monomers with a labile proton, comprising a photoinitiating agent and an agent for activating the photopolymerization and optical articles obtained
US6225021A · kind A · utility
11Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Aug 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The composition according to the invention comprises at least one polymerizable monomer with a labile proton, at least one polymerizable monomer with an iso(thio)cyanate group, a photoinitiating agent and an agent for activating the photoinitiator chosen from phosphines and phosphorus halides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.