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, 1995
Filed:
Sep. 08, 1992
Applicant:
Inventors:
Jurgen Graefe, Selm-Cappenberg, DE;
Stefan Gurtzgen, Wuppertal, DE;
Karl H Muller, Werne, DE;
Jurgen Schneider, Unna, DE;
Rolf Schrader, Unna, DE;
Assignee:
WITCO GmbH, Bergkamen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502111 ; 502117 ; 502152 ; 502179 ;
Abstract
The invention relates to a process for preparing solutions of oligomeric methylaluminoxanes, which contain trimethylaluminum in the free and/or complexed form, in hydrocarbons by partial hydrolysis of trimethylaluminum with water and to carrying out this process in a rotor/stator reaction machine. The product obtained is suitable for preparing highly active polymerization catalysts.