Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1971-09-30
1977-09-13
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
252429A, 252429B, 252429C, 526125, 526128, 526139, 526141, 526142, 526143, 526159, 526349, 526351, 526906, C08F 466, C08F 1006
Patent
active
040484157
ABSTRACT:
An improved process for the polymerization of olefins in the presence of catalyst consisting essentially of:
A. a titanium trichloride composition obtained by micro-pulverizing a titanium trichloride component prepared by reduction of titanium tetrachloride with a member selected from the group consisting of hydrogen, silicon, metallic titanium and metallic aluminum, in the presence of a complex of aluminum chloride or aluminum bromide with an electron-donor selected from the group consisting of oxygen-containing organic compounds, nitrogen-containing organic compounds and phosphorus-containing organic compounds, the amount of the complex being 0.005 to 0.5 mole per mole of the titanium trichloride component, and extracting the micro-pulverized titanium trichloride component with a solvent selected from the group consisting of saturated aliphatic hydrocarbons, aromatic hydrocarbons and halogenated aromatic hydrocarbons; and
B. an organoaluminum compound, and the catalyst therefor.
REFERENCES:
patent: 3269996 (1966-08-01), Langer
patent: 3514434 (1970-05-01), Fodor
Matsuzawa Norio
Nishimura Hiroshi
Oi Hidesaburo
Sasaki Juntaro
Wada Shigeru
Mitsui Petrochemical Industries Ltd.
Smith Edward J.
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