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:
Mar. 06, 2018
Filed:
Nov. 18, 2016
Lexmark International, Inc., Lexington, KY (US);
Danielle Renee Ashley, Longmont, CO (US);
Ligia Aura Bejat, Lexington, KY (US);
Michael James Bensing, Lexington, KY (US);
Ashley Schafer Grant, Lexington, KY (US);
Cory Nathan Hammond, Winchester, KY (US);
Rick Owen Jones, Berthoud, CO (US);
John Joseph Kraseski, Lexington, KY (US);
Jing X Sun, Lexington, KY (US);
LEXMARK INTERNATIONAL, INC., Lexington, KY (US);
Abstract
A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process. This successful alkoxysilane hydrocarbon surface treatment on the outer surface of the toner particle results in attaining a desirable charge stability in hot and humid environments and ultimately improving the quality of the toner, especially by reducing toner dusting, toner fuming and ultra-fine particles generation.