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:
May. 08, 2007
Filed:
Jan. 27, 2005
Raj D. Patel, Oakville, CA;
Karen A. Moffat, Brantford, CA;
Fatima M. Mayer, Mississauga, CA;
Allan K. Chen, Oakville, CA;
Raj D. Patel, Oakville, CA;
Karen A. Moffat, Brantford, CA;
Fatima M. Mayer, Mississauga, CA;
Allan K. Chen, Oakville, CA;
Xerox Corporation, Stamford, CT (US);
Abstract
A toner process comprised of a first heating of a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, and a core latex comprised of a first latex containing a vinyl crystalline polyester resin substantially free of crosslinking, and wherein said polyester is substantially dissolved in a vinyl monomer and polymerized to provide said first core latex resin, and which mixture contains a second crosslinked resin containing latex wherein said heating is accomplished in the presence of a coagulant to provide aggregates; adding a shell latex comprised of a polymer substantially free of crosslinking, and further heating said aggregates to provide coalesced toner particles, and wherein said further heating is at a higher temperature than said first heating.