Polypropylene-based resin composition

Details Polypropylene-based resin composition Polypropylene-based resin composition

1989-12-08

1991-12-17

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428407, 428500, 428403, B32B 516

Patent

active

050734474

ABSTRACT:
The polypropylene-based composite resin composition of the invention, which can be molded into a shaped article having excellent surface hardness and impact strength at low temperatures and usable as a shell plate member of automobiles, comprises (a) a polypropylene resin as the matrix phase, (b) particles of rubber-reinforced styrene-based resin as the dispersed phase having a specified area-average particle diameter, of which the rubber particles having a specified area-average particle diameter forms a "salami" structure as dispersed in the styrene-based resin, and (c) a layer of a compatibility improver, such as a styrene-based thermoplastic elastomer, on the surface of the particles of the rubber-reinforced styrene-based resin in a specified thickness.

REFERENCES:
patent: 3875260 (1975-04-01), Patel et al.
patent: 3900529 (1975-08-01), Beer
patent: 4528327 (1985-07-01), Cooper et al.
patent: 4677003 (1987-06-01), Redlich et al.
patent: 4711913 (1987-12-01), Tateosian et al.
patent: 4965130 (1990-10-01), Min et al.

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