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. 08, 2005
Filed:
May. 24, 2002
Applicants:
Stephan Hüffer, Ludwigshafen, DE;
Hans Peter Rath, Grünstadt, DE;
Gabriele Lang, Mannheim, DE;
Jens Kremeskötter, Mannheim, DE;
Elmar Stöckelmann, Grünstadt, DE;
Inventors:
Stephan Hüffer, Ludwigshafen, DE;
Hans Peter Rath, Grünstadt, DE;
Gabriele Lang, Mannheim, DE;
Jens Kremeskötter, Mannheim, DE;
Elmar Stöckelmann, Grünstadt, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F002/06 ; C08F010/10 ;
U.S. Cl.
CPC ...
Abstract
Homo- and copolymers of isobutene are prepared by continuous cationic polymerization of isobutene or mixtures of isobutene with ethylenically unsaturated comonomers in the presence of an initiator system comprising: