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:
Dec. 01, 1998
Filed:
Sep. 03, 1997
Applicant:
Inventors:
Marie Borzo, Basking Ridge, NJ (US);
Kophu Chiang, Teaneck, NJ (US);
Eui-Won Choe, Randolph, NJ (US);
Rao D Mikkilineni, Warren, NJ (US);
Hyun-Nam Yoon, New Providence, NJ (US);
Assignee:
Hoechst Celanese Corp., Warren, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430106 ; 430137 ;
Abstract
This invention provides a free-flowing polyester dye microspheric powder which has superior stability and transparency for application in electrophotographic imaging systems. In another embodiment this invention provides a non-aqueous dispersion polymerization process for producing the invention polyester dye microspheric powder. A present invention toner composition comprises polyester dye microspheric powder, and one or more optional ingredients such as a charge control agent or a surfactant.