Preparation of ethene polymers by means of a Ziegler catalyst sy

Details Preparation of ethene polymers by means of a Ziegler catalyst sy Preparation of ethene polymers by means of a Ziegler catalyst sy

1986-12-22

1987-12-15

Garvin, Patrick P.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502108, 502109, 526352, 526904, C08F 464

Patent

active

047134305

ABSTRACT:
Finely divided ethene polymers are prepared by means of a Ziegler catalyst system composed of (1) a titanium-containing catalyst component obtained by precipitation in an organic liquid from (1.1) a solution of titanium tetrachloride in a hydrocarbon, (1.2) a solution of a certain organoaluminum compound in a hydrocarbon, and a catalyst component which contains (1.3) an alpha-monoalkene and (2) aluminum, wherein the (1) used has been precipitated at relatively low temperatures in an organic liquid which, at the precipitation temperature has a relatively high viscosity and comprises (a) a liquid hydrocarbon and (b), dissolved therein, relatively small amounts of polymer of an alpha-monoalkene, with the provisos that (i) for every gram-mole of the total amount of titanium tetrachloride used specific amounts of the organic liquid, of the organoaluminum compound and of the alpha-monoalkene are used and (ii) for every mole unit of the total amount of titanium tetrachloride used specific amounts are precipitated per minute and specific amounts of the alpha-monoalkene are introduced per minute.

REFERENCES:
patent: 3067183 (1962-12-01), Hagemeyer et al.
patent: 3404096 (1968-10-01), Lamborn
patent: 4329251 (1982-05-01), Sunada et al.
patent: 4387201 (1983-06-01), Bahadir et al.
patent: 4463145 (1984-07-01), Sunada et al.

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