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:
Jun. 27, 1989
Filed:
Feb. 01, 1988
Applicant:
Inventors:
Renzo Invernizzi, 20147 Milano, IT;
Francesco Masi, 20097 San Donato Milanese (Milano), IT;
Angelo Moalli, 28053 Castelletto Ticino, IT;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502-9 ; 502111 ; 502125 ; 526125 ;
Abstract
A catalyst component is in the form of a granular spherical solid with at least 80% of the granules between 30 and 40 microns in size, a service area of 15 to 30 m.sup.2 /g and a porosity of 40 to 80 volumes % and definable (in atomic proportions) by the formula: ##STR1## where Et denotes the ethyl group; OEt denotes the ethoxy group and OR' is an alkoxy group containing from 1 to 8 carbon atoms in the alkyl portion, and in which the ratio of trivalent titanium to the sum of trivalent and tetravelent titanium is in the range from 0.8/1 to 1/1. The solid catalyst component is obtained by: