Gamma-radiation-resistant polycarbonate composition
US5453457A · kind A · utility
27Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1993 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Nov 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/372
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Esters and polyesters which contain disulfide linkages were found to be effective stabilizers of polycarbonate resin. Accordingly, a polycarbonate composition containing disulfide esters, alone or as a coadditive with a polyether is rendered more resistant to the deterioration resulting upon exposure to gamma radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.