Thermally stable, gamma radiation-resistant blend of polycarbonate with polyester
US5491179A · kind A · utility
7Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved thermoplastic molding composition containing polycarbonate and a polyester copolymer based on cyclohexane-dimethanol, ethylene glycol and phthalic acid is disclosed. Improved thermal stability and resistance to gamma-radiation results from the incorporation of a phosphite conforming to ##STR1## where n, m, p and r are integers, and where R is H, an alkyl or an aryl group and R.sub.3 denotes an alkyl or aryl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.