Butene-1 copolymers and resin compositions containing the same

Details Butene-1 copolymers and resin compositions containing the same Butene-1 copolymers and resin compositions containing the same

1993-01-29

1993-11-30

Schofer, Joseph L.

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

Synthetic resins

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

C08L 2314

Patent

active

052666417

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: 4726999 (1988-02-01), Kohyama 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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