High impact blends of copolyether-ester elastomers, rubber graft polymers and styrene-acrylonitrile rigid polymers
US5047470A · kind A · utility
2Cited by
10References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 28, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Jul 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic polymer compositions comprise a thermoplastic copolyether-ester elastomer, a rubber graft polymer and a rigid polymer. The rigid polymer is formed from one or more monomers selected from styrene, .alpha.-methyl styrene and halogen-substituted styrenes, at least 20 weight percent acrylonitrile, and N-phenyl maleimide, and is included in the compositions to provide improved impact strength and tensile elongation without significantly deteriorating other physical properties of the compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.