Polyolefin elastomer composition

Details Polyolefin elastomer composition Polyolefin elastomer composition

1996-07-22

1998-12-29

Marquis, Melvyn I.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525240, 525241, 26433117, C08K 334

Patent

active

058543287

ABSTRACT:
A composition for making an elongated molded product which can be satisfactorily used without having to be painted. The composition comprises an elastomer comprising crystalline polypropylene and ethylene-.alpha.-olefin rubber (EOR), and 0 to 15 phr of talc. The polypropylene (PP) and EOR have a blending ratio (PP/EOR) by weight of 35/65 to 67/33. The polypropylene has a Q value (M.sub.w /M.sub.n).gtoreq.10 and a melt flow rate of 50 to 120. The EOR has an .alpha.-olefin content of 10 to 20% by weight. The proportion Y of talc and the proportion X of the EOR in the elastomer satisfy the relation:

REFERENCES:
patent: 5302653 (1994-04-01), Nishio et al.
patent: 5439628 (1995-08-01), Huang

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