Manufacture of a modified titanium component for catalysts of th

Details Manufacture of a modified titanium component for catalysts of th Manufacture of a modified titanium component for catalysts of th

1975-08-21

1976-11-16

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526145, 526349, 526351, C08F 416

Patent

active

039923207

ABSTRACT:
A process for the manufacture of a modified titanium-containing component of a catalyst for the polymerization of a .alpha.-monoolefins by the Ziegler-Natta method wherein (a) a compound containing titanium and (b) a compound containing phosphorus are ground dry in a vibratory ball mill. It is characteristic of the process that (1) a mill of relatively large useful volume is employed, (2) the mill is first charged with the compound (a) containing titanium, (3) while grinding the material at a low temperature, the compound (b) containing phosphorus is added gradually, thereafter (4) the material is gradually brought to a higher temperature, while continuing the grinding, and is kept at about this temperature for a prolonged period, then (5) a finely particulate 1-alkene polymer having a particular glass transition temperature and a particular intrinsic viscosity is added to the material and finally (6) the material is kept at a low temperature for a prolonged period, while continuing the grinding.

REFERENCES:
patent: 3186977 (1965-06-01), Coover et al.
patent: 3639375 (1972-02-01), Staiger et al.
patent: 3937691 (1976-02-01), Staiger et al.

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