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. 30, 1993
Filed:
Dec. 30, 1991
Applicant:
Inventors:
William B Vreeland, Webster, NY (US);
Dinesh Tyagi, Fairport, NY (US);
Zona R Pierce, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ;
Abstract
Electrostatographic toners and developers, containing binder polymers that also function as charge agents are disclosed. The toner is prepared by a limited coalescence process and comprises binder polymer particles that have a surface layer of smaller polymeric stabilizer particles that are covalently bonded through a plurality of oxygen linkages to a polyorganosiloxane oligomer containing pendant charge-control moieties.