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:
Jul. 22, 2008
Filed:
Sep. 23, 2004
Guerino G. Sacripante, Oakville, CA;
Fatima M. Mayer, Mississauga, CA;
Kimberly D. Nosella, Mississauga, CA;
Valerie M. Farrugia, Oakville, CA;
Raj D. Patel, Oakville, CA;
Milan Maric, Montreal, CA;
Allan K. Chen, Oakville, CA;
Edward G. Zwartz, Mississauga, CA;
T. Hwee NG, Mississauga, CA;
Guerino G. Sacripante, Oakville, CA;
Fatima M. Mayer, Mississauga, CA;
Kimberly D. Nosella, Mississauga, CA;
Valerie M. Farrugia, Oakville, CA;
Raj D. Patel, Oakville, CA;
Milan Maric, Montreal, CA;
Allan K. Chen, Oakville, CA;
Edward G. Zwartz, Mississauga, CA;
T. Hwee Ng, Mississauga, CA;
Xerox Corporation, Norwalk, CT (US);
Abstract
A process for preparing toner particles and compositions adapted for use in preparing toners that comprise a blend of a first polyester resin with a second sharp melting polyester resin. The process includes forming an emulsion resin comprising a branched polyester resin, a crystalline polyester resin, a colorant, and optionally a wax. The resin mixture is aggregated using an aggregating agent, such as a zinc acetate solution, to form an aggregate mixture. The aggregate mixture is then coalesced at a temperature of from about 5 to about 20° C. above the Tof the emulsion resin to produce the resultant toner particles.