Polypropylene resin composition with tapered triblock copolymer

Details Polypropylene resin composition with tapered triblock copolymer Polypropylene resin composition with tapered triblock copolymer

1999-05-24

2000-12-26

Gorr, Rachel

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

Synthetic resins

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

525 98, 524451, C08L 4700, C08L 5302

Patent

active

061661341

ABSTRACT:
The present invention is a unique polypropylene copolymer resin composition which comprises a propylene-ethylene copolymer having a melt flow rate of at least 50 g/10 min and an impact modifier which comprises a thermoplastic elastomer of a hydrogenated triblock copolymer which has a specific structure in which a block of a tapered increment of an vinyl aromatic hydrocarbon portion is arranged after the isoprene homopolymer block. Accordingly, the present invention provides a polypropylene resin composition comprising

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"Block Copolymers," by D. C. Allport and W. H. Janes, Applied Science Publisher Ltd., London, (1973). pp. 82-86.

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