Gas phase polymerisation process

Details Gas phase polymerisation process Gas phase polymerisation process

1995-05-31

1996-07-09

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526116, 526159, 5263486, 526901, 526904, C08F 234

Patent

active

055346073

ABSTRACT:
The present invention relates to a continuous process for the polymerization of an alpha-olefin having from 2 to 12 carbon atoms, which is carried out in a gas phase polymerization reactor by bringing a gaseous reaction mixture, containing the alpha-olefin to be polymerized, into contact with a catalyst system of the Ziegler-Natta type consisting of a solid catalyst comprising at least one compound of a transition metal belonging to groups IV, V or VI of the Periodic Table, of the elements, and of a cocatalyst comprising at least one organometallic compound of a metal belonging to groups II or III of the Periodic Table in which the polymerization reactor is fed with alpha-olefin at a constant rate.

REFERENCES:
patent: 3023203 (1962-02-01), Dye
patent: 4748221 (1988-05-01), Collomb et al.
patent: 4780443 (1988-10-01), Matsuura et al.
patent: 4882400 (1989-11-01), Dumain et al.
patent: 5028669 (1991-07-01), Rowley
patent: 5028670 (1991-07-01), Chinh
patent: 5104838 (1992-04-01), Fujita et al.

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