Catalysts for the polymerization of olefins

Details Catalysts for the polymerization of olefins Catalysts for the polymerization of olefins

1975-10-14

1981-11-03

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429C, 252441, 526122, 526352, 526906, C08F 402, C08F 1002

Patent

active

042987180

ABSTRACT:
Catalysts useful in the polymerization of olefins, more particularly of ethylene and mixtures thereof with higher alpha-olefins and/or diolefins, are disclosed. The new catalysts are obtained by mixing a hydride or organometallic compound of a metal belonging to Groups I to III of the Mendelyeev Periodic System with the product obtained by contacting a titanium tetrahalide with a support comprising an anhydrous magnesium or zinc halide in an active form, under particular conditions.

REFERENCES:
patent: 2981725 (1961-04-01), Luft et al.
patent: 3008943 (1961-11-01), Guyer
patent: 3047551 (1962-07-01), Thomas
patent: 3153634 (1964-10-01), Thomas
patent: 3238146 (1966-03-01), Hewett et al.
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3644318 (1972-02-01), Diedrich et al.

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