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:
Aug. 21, 2012
Filed:
Mar. 28, 2006
Christoph Roth, Halle, DE;
Regina Lischewski, Wolfen OT Reuden, DE;
Roland Ackermann, Bitterfeld, DE;
Wolfgang Witt, Wolfen OT Reuden, DE;
Christoph Roth, Halle, DE;
Regina Lischewski, Wolfen OT Reuden, DE;
Roland Ackermann, Bitterfeld, DE;
Wolfgang Witt, Wolfen OT Reuden, DE;
Sensient Imaging Technologies GmbH, Wolfen, DE;
Abstract
The invention relates to a novel covering layer for electrophotographic printing rollers with improved scratch resistance. Said covering layer consists of between 50 and 75 wt. % of cycloaliphatic epoxides, between 20 and 60 wt. % of aminofunctional silica nanoparticles, and between 0 and 2 wt. % of perfluoroalkyltrialkoxysilanes. The aminofunctional nanoparticles are produced from aminoalkyltrialkoxysilanes preferably by means of sol/gel technology.