Group Va and VII oxygen mineral acids as catalyst modifiers

Details Group Va and VII oxygen mineral acids as catalyst modifiers Group Va and VII oxygen mineral acids as catalyst modifiers

1979-05-03

1980-12-09

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 252429C, 526138, 526351, C08F 464

Patent

active

042385865

ABSTRACT:
A propylene polymerization catalyst is formed by incorporation into a catalytic mixture, comprising a transition metal compound and an organoaluminum compound, effective amounts of Group Va or Group VII oxygen mineral acids whereby the amount of n-hexane-soluble polymeric product is decreased.

REFERENCES:
patent: 3129256 (1964-04-01), Hay et al.
patent: 3161628 (1964-12-01), Dost et al.
patent: 3271381 (1966-09-01), Andersen et al.
patent: 3669945 (1972-06-01), Nakaguchi et al.
patent: 3770839 (1973-11-01), Matsushima

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