Polymerizable compositions for manufacturing transparent polymeric substrates, resulting transparent polymeric substrates and their applications in the optical field
US6518393B2 · kind B2 · utility
1Cited by
0References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The compositions comprise:(a) at least 40 parts by weight, preferably at least 50 parts by weight, of at least one thio(meth)acrylate monomer,(b) at least one high Abbe number monomer,(c) at the most 20 parts by weight, preferably at the most 15 parts by weight and more preferably 10 parts by weight of an aromatic polyvinyl monomer, and(d) at least one polythiol, for 100 parts by weight of (a), (b), (c) and (d).Application for the manufacture of optical lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.