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:
Dec. 28, 1976
Filed:
Jul. 23, 1974
Applicant:
Inventors:
Fritz Baxmann, Marl, D;
Walter Dittmann, Marl, D;
Albert Frese, Marl, D;
Johann Dietrich, Marl, D;
Wolfgang Kilian, Marl, D;
Assignee:
Chemische Werke Huls Aktiengesellschaft, Marl, D;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526158 ; 526159 ; 526350 ; 526351 ; 526903 ;
Abstract
Polypropylene can be polymerized with Ziegler-Natta TiCl.sub.3 or TiCl.sub.3 . (AlCl.sub.3).sub.0.2.sub.-0.6 plus chlorine containing organoaluminum compound mixed catalyst using butene-2 or a C.sub.4 -cut comprising butene-2 as the polymerization solvent without the formation of propylene-butene copolymers.