Monomer composition for optical plastic optical material, optical plastic material, and lens
US6417273B1 · kind B1 · utility
7Cited by
6References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J4/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A monomer composition which provides a plastic optical material having high refractive index and Abbe number, a low specific gravity and excellent physical properties, such as dyeing properties, heat resistance, impact resistance and the like. The composition comprises a di(meth)acrylate compound, divinylbenzene and/or divinylbiphenyl, a crosslinking-type isocyanate compound, a polythiol compound having two or more thiol groups, and a thiourethane bonding accelerating compound. The plastic optical material obtained by the reaction of the above composition with a radical polymerization initiator is used as a material for a lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.