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:
Apr. 07, 1992
Filed:
Dec. 15, 1989
Applicant:
Inventors:
Louis J Rossi, Rochester, NY (US);
Julie P Harmon, Gainesville, FL (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430110 ; 430106 ; 430109 ;
Abstract
Toner particles are provided wherein a magenta dye is dispersed in a styrene butylacrylate copolymer. The dispersed dye is not aggregated, is colorfast, and does not sublime as the particles are heat fused. The dye is a 1,4-diaminoanthraquinone which is substituted in the 2 and 3 positions with phenoxy groups that are, in turn, substituted by either a lower alkyl or chloro group.