Polycarbonate resin having ultraviolet absorbing capability, resin composition and optical material
US8436129B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Apr 23, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Aug 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polycarbonate resin having at least one terminal group which is represented by formula (1), and a resin composition and an optical material comprising the polycarbonate resin are disclosed. In the formula, R1-R9 each independently represent a hydrogen atom, halogen atom or an alkyl group. X1 represents a direct bond or alkylene group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.