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:
Jan. 22, 2013
Filed:
May. 06, 2009
Applicants:
Phillip Hanefeld, Heidelberg, DE;
Hans Peter Rath, Gruenstadt, DE;
Helmut Mach, Heidelberg, DE;
Rainer Urban, Ludwigshafen, DE;
Inventors:
Phillip Hanefeld, Heidelberg, DE;
Hans Peter Rath, Gruenstadt, DE;
Helmut Mach, Heidelberg, DE;
Rainer Urban, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C10M 107/02 (2006.01); C10M 143/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to diblock copolymers of the formula A-B which are formed from a polymer block A which is formed essentially from α-olefin units having from 6 to 22 carbon atoms, and a polymer block B which is formed essentially from isobutene units, to a process for their preparation, to their use in lubricant compositions and to lubricant compositions which comprise such diblock copolymers.