Modified polyolefin composition and process for producing the sa

Details Modified polyolefin composition and process for producing the sa Modified polyolefin composition and process for producing the sa

1983-11-10

1985-12-31

Seccuro, Carman J.

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

Synthetic resins

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

525 78, 525 75, C08L 5106, C08L 2316, C08L 2326

Patent

active

045622302

ABSTRACT:
A modified polyolefin composition useful for producing a shaped article having an excellent bonding property and an enhanced impact resistance comprises a modified olefin polymer material prepared by melting a mixture of an olefin polymer material comprising at least one crystalline ethylene-propylene random copolymer containing from 0.5 to 5% by weight of copolymerized ethylene and having a melt flow index of from 0.2 to 5 with a modifying agent consisting of at least one unsaturated dicarboxylic anhydride and a radical reaction initiator at a temperature of from 170.degree. C. to 270.degree. C. at which the mixture is melted; and a polyolefin rubber having a Mooney viscosity ML.sub.1+4 (100.degree. C.) of 10 to 100 and mixed in an amount of from 5% to 40% based on the sum of the weight of the modified olefin polymer material and the polyolefin rubber with the modified olefin polymer material at a temperature at which the mixture is melted.

REFERENCES:
patent: 3868433 (1975-02-01), Bartz et al.
patent: 3987122 (1976-10-01), Bartz et al.
patent: 4198327 (1980-04-01), Matsumoto et al.
patent: 4230830 (1980-10-01), Tanny et al.

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