Branched alpha-olefin polymer composition and process for its pr

Details Branched alpha-olefin polymer composition and process for its pr Branched alpha-olefin polymer composition and process for its pr

1987-07-13

1989-01-17

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...

525268, 525240, 525243, 525 53, 526125, 5263483, 5263484, 526903, 526 65, C08L 2318, C08F21014

Patent

active

047988665

ABSTRACT:
A branched alpha-olefinic polymer composition having excellent melt flowability, good moldability and excellent melt tension and comprising at least two branched alpha-olefinic polymers each composed of (A) recurring units derived from a branched alpha-olefin containing 5 to 10 carbon atoms and having a branch at the 3-position or a position of a higher number and (B) recurring units derived from a linear alpha-olefin containing 2 to 20 carbon atoms; and a process for producing this polymer composition by a multiplicity of polymerization steps using a catalyst formed from (A) a highly stereoregular titanium catalyst component comprising magnesium, titanium, halogen and an electron donor as essential ingredient, (B) an organoaluminum compound and (C) an electron donor.

REFERENCES:
patent: 3692712 (1972-09-01), Brooks
patent: 4146591 (1979-03-01), Fakui et al.
patent: 4166057 (1979-08-01), Takemori
patent: 4645797 (1987-02-01), Suga et al.
patent: 4659792 (1987-04-01), Kashiwa et al.

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