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:
Dec. 18, 2007
Filed:
Nov. 27, 2000
Eduard Michel, Frankfurt am Main, DE;
Rüdiger Baur, Eppstein-Niederjosbach, DE;
Hans-tobias Macholdt, Darmstadt-Eberstadt, DE;
Eduard Michel, Frankfurt am Main, DE;
Rüdiger Baur, Eppstein-Niederjosbach, DE;
Hans-Tobias Macholdt, Darmstadt-Eberstadt, DE;
Clariant Produkte (Deutschland) GmbH, Sulzbach, DE;
Abstract
The present invention relates to the use of salt-like structured silicates, in which the cation is NH, HO, an alkali metal, alkaline earth metal, earth metal or transition metal ion or a low molecular weight organic cation or a combination thereof and the anion is an island, cyclic, group, chain, ribbon, laminar or matrix silicate or a combination thereof as charge control agents in electrophotographic toners and developers, in powder coatings, electret materials and in electrostatic separation processes.