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:
Sep. 30, 1986
Filed:
Feb. 19, 1985
Munehisa Fujita, Kanagawa, JP;
Yasuhiro Hayashi, Kanagawa, JP;
Takashi Ozawa, Kanagawa, JP;
Nobutaka Ohki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A color reversal photographic light-sensitive materials comprising a base having thereon (a) at least one light-sensitive silver halide emulsion layer containing a dye forming coupler and (b) a silver halide emulsion layer substantially without light-sensitivity provided adjacent to said light-sensitive layer, or (a) at least one light-sensitive silver halide emulsion layer containing a dye forming coupler, (b) a silver halide emulsion layer substantially without light-sensitivity to light, and (c) an intermediate layer therebetween, wherein said intermediate layer or said silver halide emulsion layer substantially without light-sensitivity, or both said intermediate layer and said silver halide emulsion layer substantially without light-sensitivity contain at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom or a group having 1 to 10 carbon atoms capable of being hydrolyzed with alkali, R.sup.3, R.sup.4 and R.sup.5 each represents a hydrogen atom, a sulfo group, a carboxyl group, a sulfoalkyl group having 1 to 6 carbon atoms, a carboxyalkyl group having 1 to 6 carbon atoms or an alkyl group having 1 to 22 carbon atoms, provided that at least one of R.sup.3, R.sup.4 and R.sup.5 is a group selected from a sulfo group, a carboxyl group, a sulfoalkyl group and a carboxyalkyl group, and at least one of R.sup.3, R.sup.4 and R.sup.5 is an alkyl group.