Polycarbonate copolymer, and heat resistant parts comprising the same
US7317067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Mar 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/2534
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide a polycarbonate copolymer having excellent heat resistance and dimensional stability and heat resistant parts comprising the copolymer and suitable for use in various applications. The present invention is a polycarbonate copolymer comprising 5 to 95 mol % of recurring unit (component a) represented by the following general formula (I):and 95 to 5 mol % of recurring unit (component b) represented by the following general formula (II):(wherein Ra to Rd are each independently a hydrogen atom, a hydrocarbon group which may contain an aromatic group having 1 to 9 carbon atoms or a halogen atom, and W is a single bond, a hydrocarbon group which may contain an aromatic group having 1 to 20 carbon atoms or an O, SO, SO2, CO or COO group), and various heat resistant parts comprising the copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.