Catalyst and method

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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252429R, 252430, 252431R, 252431N, 526106, 526130, 526154, 526172, 526352, C08F 478, C08F 1000

Patent

active

040716732

ABSTRACT:
A new catalyst and method of making polymers therewith and the process of preparing the catalyst in which the catalyst is prepared by dispersing on a finely divided carrier material, particularly a difficultly reducible inorganic support such as silica, an organic chromium complex such as a chelate derived from orthohydroxyphenyl or 2'-hydroxyphenyl carbonyl compounds, including ketone, aldehyde and amide types, and their derivatives, and activating the resulting mixture by heating at an elevated temperature in a non-oxidizing atmosphere.

REFERENCES:
patent: 3324092 (1967-06-01), Naarman et al.
patent: 3860568 (1975-01-01), Chabent et al.
patent: 3953413 (1976-04-01), Hwang et al.
patent: 3986983 (1976-10-01), Hoff et al.

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