Components of catalysts for the polymerization of olefins

Details Components of catalysts for the polymerization of olefins Components of catalysts for the polymerization of olefins

1980-09-24

1985-01-22

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502104, 502105, 502134, 526122, 526348, 526351, 526352, 526906, C08F 402, C08F 1000

Patent

active

044953380

ABSTRACT:
Catalysts useful in the polymerization of olefins, more particularly of ethylene and mixtures thereof with alpha-olefins and/or diolefins, are disclosed. The new catalysts are obtained by mixing a halide of titanium or vanadium in which the metal has a valency lower than 4, with a support comprising an anhydrous magnesium or zinc halide in an active form under particular conditions, and then activating the resulting product with a hydride or organometallic compound of a metal belonging to Groups I to III, inclusive, of the Mendelyeev Periodic System.

REFERENCES:
patent: 2981725 (1961-04-01), Luft et al.
patent: 3032510 (1962-05-01), Tornqvist et al.
patent: 3058963 (1962-10-01), Vandenberg
patent: 3238146 (1966-03-01), Hewett et al.
patent: 3244477 (1966-04-01), Nicco et al.
patent: 3298965 (1967-01-01), Tornqvist
patent: 3392159 (1968-07-01), Schooley et al.
patent: 3482935 (1969-12-01), Trementozzi et al.
patent: 4298718 (1981-11-01), Mayr et al.

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