Process for the preparation of substitutes for optical glasses and polymerizable liquid composition suitable to that purpose
US4812545A · kind A · utility
7Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1986 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | May 15, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F218/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Substitutes for optical glasses are obtained by submitting to polymerization, in the presence of a free-radical initiator and in bulk, a polymerizable liquid composition containing: PA0 a monomer of diethyleneglycol bis(allylcarbonate); PA0 oligomers of diethyleneglycol bis(alllycarbonate); PA0 a monomer of tris(hydroxyethyl)isocyanurate tris(allylcarbonate); and PA0 at least one free-radical initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.