Process for the preparation of olefin polymer

Details Process for the preparation of olefin polymer Process for the preparation of olefin polymer

1997-03-05

1998-12-01

Nagumo, Mark

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

Synthetic resins

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

525322, 525247, 525254, 5261253, C08F29708

Patent

active

058440461

ABSTRACT:
A process for preparing an olefin polymer comprising the steps of: olefin in the presence of an olefin poymerization catalyst comprising a copolymerizing an olefin in an polymerizer different from that for the polymerization of the above step in the presence of an olefin poymerization catalyst comprising a specific solid titanium catalyst coexist in one polymerizer to further polymerize or copolymerize an olefin.

REFERENCES:
patent: 4547552 (1985-10-01), Toyota et al.
patent: 4822840 (1989-04-01), Kioka et al.
patent: 5023223 (1991-06-01), Ebara et al.
patent: 5449738 (1995-09-01), Koura et al.
patent: 5473021 (1995-12-01), Koura et al.

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