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:
Nov. 14, 1995
Filed:
Jul. 20, 1993
Applicant:
Inventors:
Donald R Diehl, Rochester, NY (US);
Margaret J Helber, Rochester, NY (US);
Hugh Williamson, London, GB;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ; C07C / ;
U.S. Cl.
CPC ...
548179 ; 544306 ; 544345 ; 546 82 ; 546165 ; 546230 ; 548150 ; 548152 ; 548180 ; 548217 ; 548238 ; 5483097 ; 5483701 ; 548436 ; 558300 ; 558302 ; 558403 ; 549401 ; 549479 ; 8551 ; 8567 ; 8568 ; 8571 ; 8572 ; 8573 ; 8574 ; 8576 ;
Abstract
Imine dyes useful in photographic materials have the formula ##STR1## wherein R.sup.1, E.sup.1, E.sup.2, L.sup.1, L.sup.2, L.sup.3,D and m are defined as in the specification. Solid particle dispersions of dyes of formula (I) that contain at least one base-ionizable functional group such as carboxy, sulfonamido, or sulfamoyl are useful as filter dyes in photographic elements.