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. 16, 2018
Filed:
Jul. 09, 2013
Evonik Degussa Gmbh, Essen, DE;
Bernhard Haeupler, Erlangen, DE;
Ulrich Schubert, Jena, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
Disclosed is an oligomeric or polymeric compound comprising at least two structural units of formula (I) wherein Ar is a carbocyclic aromatic radical or a heterocyclic aromatic radical with the two carbonyl carbon atoms being attached to two ring carbon atoms of the Ar group forming together with the imide-nitrogen atom a five-membered or a six-membered ring X is a divalent group selected from —CRR—, —CO—, —SiRR—, —P(O)R—, —P(O)(OR)—, —PR—, —P(OR)—, —S(O)— or —S(O)—. Rto Rindependently of one another are hydrogen, alkyl, cycloalkyl, aryl or heteroaryl groups, Ris a divalent hydrocarbon group or a covalent bond, and R, Rand Rindependently of one another are hydrogen or C-Calkyl or Rand Ror Rand Rtogether with the carbon atoms to which they are attached form a cycloaliphatic ring or a bicyclic aliphatic system The oligomeric or polymeric compound comprising units of formula (I) of the invention can be used as redox-active material in storage means for electric energy, for example in batteries, redox-flow cells, fuel cells or capacitors.