Polymerization process

Details Polymerization process Polymerization process

1973-11-16

1976-08-03

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 26029387, 260545P, 260551P, 260936, 260945, 526159, 526193, 526348, 526349, 526351, 526352, C08F 466, C08F 1006

Patent

active

039728668

ABSTRACT:
An olefine polymerization catalyst includes a complex compound of phosphorus having the general formula ##EQU1## where the various groups are defined. Typical phosphorus compounds include ##EQU2## Catalyst systems containing these phosphorus compounds give a high rate of polymerization together with a low proportion of soluble polymer. The phosphorus compound can be ball-milled with the titanium compound to give an improved effect and the catalyst system may also include an electron donor compound such as triphenylphosphine oxide and tris(dimethylamino)silicon monochloride or a cyclic polyene such as cycloheptatriene.

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