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. 12, 2011
Filed:
Jul. 26, 2007
Craig Michael Bertelsen, Union, KY (US);
Ligia Aura Bejat, Versailles, KY (US);
Michael James Bensing, Lexington, KY (US);
John Joseph Kraseski, Lexington, KY (US);
Matthew T. Martinkovic, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Craig Michael Bertelsen, Union, KY (US);
Ligia Aura Bejat, Versailles, KY (US);
Michael James Bensing, Lexington, KY (US);
John Joseph Kraseski, Lexington, KY (US);
Matthew T. Martinkovic, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
The present disclosure relates to chemically processed toner. The toner may be prepared by an emulsion aggregation method by forming a polyester dispersion wherein the polyester has an acid value of about 5 to about 50 and a particle size of about 50 to about 500 nanometers. The polyester dispersion may then be combined with a pigment and/or release agent dispersion wherein the pigment and/or release agent dispersion may contain a dispersant. This may then be followed by heating and recovering agglomerated toner particles wherein the toner particles may have a mean particle size of about 3 to about 15 microns and an average degree of circularity of between about 0.90 to about 1.0.