Impact resistant polyblends of polyamides, acid copolymers and a

Details Impact resistant polyblends of polyamides, acid copolymers and a Impact resistant polyblends of polyamides, acid copolymers and a

1990-05-04

1993-06-01

Carrillo, Ana L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525179, C08L 7700

Patent

active

052160750

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.

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