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:
Apr. 22, 1980
Filed:
Feb. 09, 1978
Applicant:
Inventors:
Stylianos Sandis, Lavera, FR;
Jean C Bailly, Martigues, FR;
Assignee:
Naphtachimie Societe Anonyme, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
2524 / ; 526142 ;
Abstract
A process for producing titanium-trichloride based catalyst comprising reducing titanium tetrachloride in excess with an organo-aluminum compound in the presence of 2 to 5 mols per mol of organo-aluminum of one or more aliphatic ethers having the formula R'--O--R' in which R' and R' are alkyl groups containing 1 to 5 carbon atoms and maturing the formed precipitate at a temperature within the range of 80.degree.-115.degree. C., said catalyst being useful with an organo-metallic co-catalyst in the polymerization of olefins.