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. 06, 2017
Filed:
Dec. 31, 2013
Lexmark International, Inc., Lexington, KY (US);
Jing Sun, Lexington, KY (US);
Kasturi Rangan Srinivasan, Longmont, CO (US);
John Joseph Kraseski, Lexington, KY (US);
Trent Duane Peter, Johnstown, CO (US);
Walter Mychajlowski, Superior, CO (US);
Tao Yu, Wellesley, MA (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 second polymer binder, a colorant and a release agent; a shell that is formed around the core and includes a third polymer binder; and a borax coupling agent between the core and the shell. The first and third polymer binders are different amorphous polyester resins. The second polymer binder is a crystalline polyester resin and acts as a plasticizing agent in the core. The borax coupling agent assists in adhering the shell to the outer surface of the core. Optionally, the toner of the present invention may be finished with a set of extra particulate additives.