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. 18, 1990
Filed:
Jan. 06, 1989
Siu C Tsoi, Watford, GB;
Eastman Kodak Company, Rochester, NY (US);
Abstract
A non-diffusible, yellow dye image-forming benzoylacetanilide coupler having an aryloxy coupling-off group where (a) the benzoyl group comprises a substituent R.sup.1 O-- wherein R.sup.1 is an alicyclic or aliphatic, unsubstituted or substituted, branched or unbranched hydrocarbon group; and, (b) at least one of the benzoyl group and acetanilide group comprise a substituent that comprises a branched alkyl group containing at least 4 carbon atoms wherein the alkyl chains are uninterrupted or interrupted by hetero atoms or groups, enables improved solubility in coupler solvents in a photographic material, and the yellow dyes resulting from such couplers upon oxidative coupling have improved light stability. Such couplers are advantageous in photographic silver halide elements and processes.