Branched (meth)acrylate copolymer with high refractive index and method for preparing the same
US8901218B2 · kind B2 · utility
3Cited by
92References
9Claims
0Family size
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Key dates
| Filing date | Jun 2, 2010 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a branched (meth)acrylate copolymer prepared by polymerizing a monomer mixture comprising (A) about 20 to about 99.999% by weight of a (meth)acrylate monomer having a refractive index higher than methyl methacrylate; (B) about 0 to about 79.999% by weight of a mono-functional unsaturated monomer; and (C) about 0.001 to about 10% by weight of a crosslinking monomer. The copolymer has a refractive index of about 1.495 to about 1.590.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.