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:
Jun. 15, 2010
Filed:
Sep. 08, 2006
Zhen Lai, Webster, NY (US);
Richard Fong, Webster, NY (US);
Yuhua Tong, Webster, NY (US);
Chieh-min Cheng, Rochester, NY (US);
Amy A. Grillo, Rochester, NY (US);
Paul F. Smith, Oakville, CA;
Paul J. Gerroir, Oakville, CA;
Beng S. Ong, Mississauga, CA;
Zhen Lai, Webster, NY (US);
Richard Fong, Webster, NY (US);
Yuhua Tong, Webster, NY (US);
Chieh-Min Cheng, Rochester, NY (US);
Amy A. Grillo, Rochester, NY (US);
Paul F. Smith, Oakville, CA;
Paul J. Gerroir, Oakville, CA;
Beng S. Ong, Mississauga, CA;
Xerox Corporation, Norwalk, CT (US);
Abstract
A process for preparing a toner includes mixing a polymeric resin emulsion, a colorant dispersion, and a wax to form a mixture; optionally adding a coagulant to the mixture; heating the mixture at a temperature below a glass transition temperature of the polymeric resin to aggregate the polymeric resin, colorant, and wax, to form aggregated particles; adding a coalescent agent to the aggregated particles; heating the aggregated particles and coalescent agent at a temperature above the glass transition temperature of the polymeric resin, to coalesce the aggregated particles to form toner particles, optionally cooling the mixture, and isolating the tone particles.