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:
Apr. 04, 2017
Filed:
Jul. 09, 2015
Lexmark International, Inc., Lexington, KY (US);
Ligia Aura Bejat, Lexington, KY (US);
Claudia Alexandra Marin Goggin, Lexington, KY (US);
Cory Nathan Hammond, Winchester, KY (US);
Rick Owen Jones, Berthoud, CO (US);
Robert Watson McAlpine, Lexington, KY (US);
Jing X Sun, Lexington, KY (US);
Peter Nikolaivich Yaron, Denver, CO (US);
LEXMARK INTERNATIONAL, INC., Lexington, KY (US);
Abstract
A chemically prepared toner composition according to one example embodiment includes a core including at least one polymer binder, a colorant and a release agent; a shell that is formed around the core and includes a third polymer binder; and a borax coupling agent between the core and the shell. The binder for the shell is a styrene acrylic polyester copolymer having a glass transition temperature (Tg) between 55° C. to 65° C., a melt temperature (Tm) between 100° C. to 130° C., a peak molecular weight of about 12,000 and acid value from 10-28.