The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1977
Filed:
Sep. 30, 1971
Norio Matsuzawa, Ohtake, JA;
Hidesaburo Oi, Waki, JA;
Hiroshi Nishimura, Ohtake, JA;
Shigeru Wada, Ohtake, JA;
Juntaro Sasaki, Iwakuni, JA;
Mitsui Petrochemical Industries Ltd., Tokyo, JA;
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.