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:
Jun. 29, 1993
Filed:
Jan. 09, 1989
Kazunori Hasebe, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A silver halide color photographic material comprises at least one silver halide emulsion layer containing a substantially iodide free silver chlorobromide or silver chloride grain of which the silver chloride content is at least 90 mol. % and a color coupler. The color coupler is at least one compound represented by formula (I) or (II). The coupler is dispersed in the emulsion layer, as a dispersion of a fine lipophilic particle obtained by emulsification and dispersion of a solution obtained by dissolution of the coupler together with at least one homopolymer or copolymer which is insoluble in water and soluble in an organic solvent and a high boiling point organic solvent: ##STR1## R.sub.1, R.sub.4, and R.sub.5 represent aliphatic, aromatic or heterocyclic groups; R.sub.3 and R.sub.6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group or an acylamino group, or R.sub.6 represents a group of non-metal atoms required to form, together with R.sub.5, a five or six membered nitrogen containing ring; R.sub.2 represents an aliphatic group; Y.sub.1 and Y.sub.2 each represents a hydrogen atom or a group which can be eliminated during a coupling reaction with the oxidized form of a developing agent. l represents the integer 0 or 1. Polymeric couplers consisting of dimers or greater units can be formed via one group from among R.sub.2, R.sub.3, Y.sub.1 or one group among R.sub.5, R.sub.6, and Y.sub.2.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile