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. 10, 2002
Filed:
Oct. 26, 2000
Applicant:
Inventors:
Thomas Knauf, Dormagen, DE;
Wilfried Braubach, Solingen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/44 ;
U.S. Cl.
CPC ...
C08F 4/44 ;
Abstract
The present invention comprises a catalyst based on rare earth metal compounds which consists of a rare earth metal compound, an organic aluminum compound and a trihalosilane, of a process for the production thereof and of the use of the catalyst for polymerizing conjugated dienes to form high molecular weight polybutadienes.