Copolycarbonate and composition containing the same
US9868818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Nov 16, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K21/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a polycarbonate composition including a polycarbonate; and a copolycarbonate, where the copolycarbonate includes: an aromatic polycarbonate-based first repeating unit; and aromatic polycatbonate-based second repeating units having siloxane bonds, which include a repeating unit represented by Chemical Formula 2 and a repeating unit represented by Chemical Formula 3, where the ratio of an impact strength at room temperature and an impact strength at low-temperature (impact strength at room temperature/impact strength at low-temperature) as measured at 23° C. and −30° C., respectively, in accordance with ASTM D256 (⅛ inch, Notched Izod) is 1.01 to 1.30, and the impact strength at room temperature is 840 to 1000 J/m:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.