Polymerization catalyst

Details Polymerization catalyst Polymerization catalyst

1982-03-29

1984-06-19

Garvin, Patrick

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502119, 502121, 526129, 526137, 526139, C08F 402, C08F 464

Patent

active

044553862

ABSTRACT:
A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and interpolymerization of 1-olefins. The catalyst is prepared by (1) reacting a mono- or polyfunctional phosphorus compound with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the phosphorus compound reacts with these surface hydroxyl groups, followed by (2) reacting the product of this with a Group IIa (e.g. Mg) compound and further (3) reacting this product with a Group IVB, VB or VIB (e.g. Ti) compound. Alternatively, (1) is reacted with (3) and then with (2).

REFERENCES:
patent: 2981725 (1961-04-01), Loft et al.
patent: 3591656 (1971-07-01), Kroll
patent: 3654249 (1972-04-01), Diedrich et al.
patent: 3759884 (1973-09-01), Tokuzumi et al.
patent: 4039472 (1977-08-01), Hoff
patent: 4097409 (1978-06-01), Speakman
patent: 4243552 (1981-01-01), Welch et al.
patent: 4333851 (1982-06-01), Speakman et al.
patent: 4359403 (1982-11-01), Hoff et al.

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