Process for polymerising olefin with a Ziegler-Natta catalyst

Details Process for polymerising olefin with a Ziegler-Natta catalyst Process for polymerising olefin with a Ziegler-Natta catalyst

1997-01-27

1999-11-23

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5261252, 526144, 526901, C08F 4649, C08F 234

Patent

active

059902515

ABSTRACT:
The present invention relates to a process for (co-)polymerizing olefin(s) comprising introducing into a polymerization medium the olefin(s), a titanium-based catalyst of Ziegler-Natta type, an organometallic cocatalyst and a halogenated hydrocarbon compound in an amount effective for increasing the catalyst activity in the (co-)polymerization, the amount being such that the molar ratio of the quantity of the halogenated hydrocarbon compound to that of titanium is comprised between 0.01 and 0.1, or between 0.001 and 0.15 when the (co-)polymerization is carried out continuously. The process is particularly useful in a continuous gas-phase (co-)polymerisation of olefin(s).

REFERENCES:
patent: 4593010 (1986-06-01), Malpass
patent: 5118769 (1992-06-01), Kondo et al.
Translation of Toyo --Japanese No. 61-127703.
English translation furnished.

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