Butene-1 copolymer and resin composition containing the same

Details Butene-1 copolymer and resin composition containing the same Butene-1 copolymer and resin composition containing the same

1990-10-03

1993-04-27

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526160, C08F21006, C08F21008

Patent

active

052063240

ABSTRACT:
Copolymers of butene-1 and propylene, having specific physical properties and substantially a syndiotactic structure; and easily heat-sealable polypropylene resin compositions comprising 5-50 parts by weight of one of the copolymers and 95-50 parts by weight of a stereoregular crystalline propylene-ethylene copolymer or propylene-ethylene-C.sub.4-12 -.alpha.-olefin copolymer having specific compositions and melt flow index.

REFERENCES:
patent: 3332921 (1967-07-01), Cleary
patent: 3464962 (1969-09-01), Geacintov et al.
patent: 4892851 (1990-01-01), Ewen et al.
patent: 4975492 (1990-12-01), Kondo et al.
Patent Abstracts of Japan, vol. 11, No. 349, Nov. 14, 1987 & JPA 62119213, May 30, 1987.

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