Method of polymerizing olefins

Details Method of polymerizing olefins Method of polymerizing olefins

1977-05-13

1978-09-26

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252428, 252431C, 252458, 252467, 526106, 526123, 526130, 526154, 526172, 526352, C08F 478, C08F 1000, C08F 1002

Patent

active

041172175

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 (II) or (III) salt or derivative of a carboxylic acid or an N-substituted carboxylic acid or a nitrogen-heterocyclic carboxylic acid and activating the resulting mixture by heating at an elevated temperature in a non-oxidizing atmosphere.

REFERENCES:
patent: 3392160 (1968-07-01), Orzechowski
patent: 3432445 (1969-03-01), Osgan et al.
patent: 3622521 (1971-11-01), Hogan et al.
patent: 3953413 (1976-04-01), Hwang et al.
patent: 3995097 (1976-11-01), Brown et al.
patent: 4016343 (1977-04-01), Hoff et al.
patent: 4041225 (1977-08-01), Pullukat
patent: 4064336 (1977-12-01), Hwang
patent: 4071673 (1978-01-01), Hwang

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