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:
Feb. 12, 1985
Filed:
Jun. 08, 1982
Applicant:
Inventors:
Rolf S Gabrielsen, Webster, NY (US);
Patricia A Graham, Williamson, NY (US);
James E Klijanowicz, Pittsford, NY (US);
Max H Stern, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C09B / ;
U.S. Cl.
CPC ...
564 92 ; 260401 ; 2604 / ; 2603 / ; 2605 / ; 560 12 ; 560 13 ; 560 27 ; 562405 ; 564 49 ; 564 79 ; 564 81 ; 564 82 ; 564 83 ; 564 84 ; 564 99 ; 8593 ;
Abstract
Color-forming para-sulfonamidodiphenylamines and their corresponding sulfonimide dyes are useful in imaging materials. The color-forming sulfonamidodiphenylamines are prepared by condensation reactions. The corresponding sulfonimide dyes are formed by oxidation of the color-forming sulfonamidodiphenylamines by means of a suitable oxidizing agent, such as the oxidized form of a cross-oxidizing silver halide developing agent.