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:
Oct. 02, 2007
Filed:
Jan. 19, 2005
Grazyna E. Kmiecik-lawrynowicz, Fairport, NY (US);
Maura A. Sweeney, Irondequoit, NY (US);
Robert D. Bayley, Fairport, NY (US);
Ronald J. Koch, Webster, NY (US);
Mary L. Mcstravick, Fairport, NY (US);
Daniel W. Asarese, Honeoye Falls, NY (US);
Grazyna E. Kmiecik-Lawrynowicz, Fairport, NY (US);
Maura A. Sweeney, Irondequoit, NY (US);
Robert D. Bayley, Fairport, NY (US);
Ronald J. Koch, Webster, NY (US);
Mary L. McStravick, Fairport, NY (US);
Daniel W. Asarese, Honeoye Falls, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method of forming toner particles having surface particles attached thereto includes the steps of aggregating a material of at least one binder material and at least one colorant to produce toner particles, following aggregation, forming a mixture of the surface particles and the toner particles, and subjecting the mixture to a temperature above the glass transition temperature of the toner particles to coalesce the toner particles, whereby the surface particles become at least partially embedded within the surface of the toner particles. Toner particles prepared by such method include a core comprised of at least one binder and at least one colorant, and surface particles at an external surface of the toner particles, wherein at least about 50% of the surface particles are substantially completely covered by a portion of binder and a majority of the surface particles protrude from the toner particle surface a distance of at least 50% of the average particle size of the surface particles.