Elastomeric thermoplastic copolyether-esters endowed with improved thermal and hydrolitic stabilities
US5236979A · kind A · utility
5Cited by
6References
15Claims
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Key dates
| Filing date | Apr 14, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Apr 14, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/527
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The thermal and hydrolytic stabilities of the elastomeric thermoplastic copolyether-esters are remarkably improved by the addition of a synergistic mixture consisting of an tri (hydroxybenzyl) benzene and of a bis (alkyl-phenyl) pentaerythritol diphosphite. The copolyether-esters thus compounded find use in the extrusion, blow and injection molding technologies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.