Elastomeric thermoplastic copolyether-esters endowed with improved thermo-oxidation resistance
US5106892A · kind A · utility
12Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/527
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The thermo-oxidation resistance of the elastomeric thermoplastic copolyether-esters is remarkably improved by the addition of a synergistic mixture consisting of an organo phosphite and a pentaerythritol phosphite. The copolymer-esters thus compounded find use in the extrusion, blow and injection molding technologies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.