Impact modification of polypropylene with styrene/isoprene tetra

Details Impact modification of polypropylene with styrene/isoprene tetra Impact modification of polypropylene with styrene/isoprene tetra

1994-09-14

1996-02-20

Schofer, Joseph L.

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

Synthetic resins

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

528 89, C08L 5302

Patent

active

054929679

ABSTRACT:
Compositions consisting essentially of from 60% to 95% by weight of the polymer components of a high flow polypropylene and from 40% to 5% by weight of a polystyrene-hydrogenated polyisoprene-polystyrene-hydrogenated polyisoprene block copolymer have excellent low temperature impact strength and high heat distortion temperature for molding large automobile parts.

REFERENCES:
patent: 4904731 (1990-02-01), Holden
patent: 5045589 (1991-09-01), Ueno

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