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:
Sep. 02, 2008
Filed:
Jun. 22, 2005
Deepak R. Maniar, Webster, NY (US);
Thomas C. Dombroski, Rochester, NY (US);
Christopher M. Pattison, Rochester, NY (US);
Bernard A. Kelly, Ontario, NY (US);
Deepak R. Maniar, Webster, NY (US);
Thomas C. Dombroski, Rochester, NY (US);
Christopher M. Pattison, Rochester, NY (US);
Bernard A. Kelly, Ontario, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Carrier particles comprise a core and a polymer coating that comprises a mixture of polymethyl methacrlyate (PMMA) and melamine. The coating compositions comprise from about 60 to about 80 percent by weight of PMMA and from about 20 to about 40 percent by weight of melamine. The carriers may be combined with a toner to provide a developer suitable for use in an electrostatographic process. Carriers comprising the PMMA/melamine coatings exhibit increased triboelectric charging, a more conductive carrier, and also contribute to reducing toner cohesion.