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:
Feb. 21, 1989
Filed:
May. 11, 1987
Applicant:
Inventors:
Toshio Sasaki, Ichihara, JP;
Takeshi Ebera, Ichihara, JP;
Kiyoshi Kawai, Chiba, JP;
Akinobu Shiga, Ichihara, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502115 ; 502116 ; 502120 ; 502125 ; 502126 ; 502127 ; 526118 ;
Abstract
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n (wherein R.sup.1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n.ltoreq.4) with an organomagnesium compound in the presence of an alcohol compound and/or a phenol compound to obtain a solid product and then treating the solid product with a mixture of an ether compound and titanium tetrachloride; a catalyst system comprising: