Impact resistant polyblends of polyamides, acid copolymers and anhydride functionalized elastomers
US5216075A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 1990 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | May 4, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Moldable multi-phase polyblends having excellent impact properties are disclosed which comprise blends of a polyamide, a thermoplastic copolymer of an .alpha.,.beta.-unsaturated carboxylic acid and a monovinyl aromatic monomer, and an anhydride-functionalized elastomer. The functionalized elastomers are low in unsaturation, providing polyblends having good oxidative stability, and are .alpha.,.beta.-carboxylic acid anhydride adducts of EPDM-type rubbers, hydrogenated block or random copolymers of monovinyl aromatic monomers and conjugated dienes, or hydrogenated polymers of conjugated dienes. Optimum impact properties are achieved by combining the components of the polyblends using particular melt-blending procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.