Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1981-06-08
1983-08-02
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
RE0313319
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
CA 76, 73061z.
Levin Stanford M.
Magidson William H.
McClain William T.
Oliver Wallace L.
Standard Oil Company (Indiana)
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