Prepolymerized catalyst and use thereof

Details Prepolymerized catalyst and use thereof Prepolymerized catalyst and use thereof

1993-05-27

1999-11-16

Wood, Elizabeth D.

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

Catalyst or precursor therefor

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

502103, 502104, 502117, 502134, B01J 3100

Patent

active

059857838

ABSTRACT:
A prepolymerized olefin polymerization catalyst, its prepration, and use are disclosed. The catalyst is prepared by contacting a solid particulate transition metal-containing olefin polymerization catalyst with an olefin in a confined zone under suitable conditions wherein the prepolymerization is conducted under conditions such that the olefin is added to the confined zone at a rate such that the pressure in the confined zone increases no more than about 0.5 psig/sec. during the olefin addition.

REFERENCES:
patent: 4325837 (1982-04-01), Capshew et al.
patent: 4326988 (1982-04-01), Welch et al.
patent: 4579836 (1986-04-01), Arzoumanidis et al.
patent: 4618595 (1986-10-01), Dietz
patent: 5166281 (1992-11-01), Chamla et al.
patent: 5204303 (1993-04-01), Korvenoja et al.
patent: 5252529 (1993-10-01), Ueda et al.

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