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:
Oct. 14, 2014
Filed:
Jun. 20, 2008
Torsten Stoehr, Frankfurt, DE;
Michael Mueller, Bensheim, DE;
Thorsten Bartels, Weisenheim, DE;
Christoph Wincierz, Darmstadt, DE;
Klaus Schimossek, Benshiem, DE;
Michael Neusius, Darmstadt, DE;
Dieter Janssen, Gross-Umstadt, DE;
Miriam-kathrin Stihulka, Maintal, DE;
Torsten Stoehr, Frankfurt, DE;
Michael Mueller, Bensheim, DE;
Thorsten Bartels, Weisenheim, DE;
Christoph Wincierz, Darmstadt, DE;
Klaus Schimossek, Benshiem, DE;
Michael Neusius, Darmstadt, DE;
Dieter Janssen, Gross-Umstadt, DE;
Miriam-Kathrin Stihulka, Maintal, DE;
Evonik RohMax Additives GmbH, Darmstadt, DE;
Abstract
The present invention relates to the use of ester group-including polymers having at least one nonpolar segment P and at least one polar segment D, where the polar segment D includes at least 8 repeating units, and the proportion of dispersing repeating units in the polar segment D is at least 30% by weight based on the weight of the polar segment D, as antifatigue additive in lubricants.