Polymerization process

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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

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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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