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:
Jul. 18, 2000
Filed:
Oct. 04, 1999
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 Corporation, Warren, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 64 ;
Abstract
This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electro-photographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are reacted with diol monomers to form an invention polyester dye. A present invention toner composition comprises particulate polyester dye, and one or more optional components such as a charge control agent or a surfactant.