Copolycarbonate and composition comprising the same
US9745417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2015 |
| Grant date | Aug 29, 2017 |
| 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 polycarbonate-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 copolycarbonate has an impact strength at room temperature of 840 to 1000 J/m as measured at 23° C. in accordance with ASTM D256 (⅛ inch, Notched Izod), and the copolycarbonate satisfies Equation 1:TS/TS0≧0.80. [Equation 1]The copolycarbonate in the composition provides an improved chemical resistance and impact strength simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.