Flame retardant polycarbonate compositions
US5576413A · kind A · utility
24Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polycarbonate compositions comprising copolymers of bis-(4-hydroxyphenyl)methane and 2,2-bis-(4-hydroxyphenyl)propane are described and they unexpectedly display high glass transition temperatures, high impact resistances, flame retardant properties and superior brittle ductile transition temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.