Prepolymerized catalyst and use thereof

Details Prepolymerized catalyst and use thereof Prepolymerized catalyst and use thereof

1992-01-07

1993-09-14

Garvin, Patrick P.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526119, 526159, 526352, 502108, 502103, C08F 4651

Patent

active

052449904

ABSTRACT:
A prepolymerized olefin polymerization catalyst, its preparation, 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: 4394291 (1983-07-01), Hawley

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