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. 11, 1979
Filed:
Oct. 18, 1977
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention is directed to a color photographic material which is characterized as containing a compound represented by the following formula I in combination with a compound represented by the following formula II ##STR1## wherein R represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic ring; R.sub.1, R.sub.2 and R.sub.3 individually represent hydrogen, halogen, an alkyl group, an alkylthio group, an alkoxy group, an aryl group, an aryloxy group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an acyloxy group, a sulfonamido group, an alkylamino group, a cycloalkyl group or an alkoxycarbonyl group; and Z represents an atomic group or groups necessary for forming a chroman or coumaran ring; provided that R and R.sub.1 can cooperatively be cyclized to form a chroman or cumaran ring. ##STR2## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are individually alkyl having 1-18 carbon atoms, the total number of carbon atoms of A.sub.1, A.sub.2, A.sub.3 and A.sub.4 being not more than 32; and X is a simple bond, oxygen, sulfur, sulfonyl or ##STR3## in which A.sub.5 is hydrogen or alkyl having 1-10 carbon atoms and n is an integer of 1-3.