Optical material and composition for optical material
US5171806A · kind A · utility
2Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jul 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/408
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition for an optical material, which comprises an N-phenylmaleimide, a di(meth)allyl diphenate and a bisphenol ester. The N-phenylmaleimide, the di(meth)allyl diphenate and the bisphenol ester are contained in amounts of 1 to 50% by weight, 5 to 50% by weight and 1 to 30% by weight, based on the total weight of these components, respectively, The composition affords a three-dimensionally crosslinked resin by radical polymerization. The resin is useful for an optical material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.