发明名称 Silver halide photographic material comprising pyridinium carbamoyl hardeners
摘要 The present invention relates to a silver halide photographic material comprising a support and at least one silver halide emulsion layer coated thereon, wherein said silver halide photographic material comprises tabular silver halide grains having an average aspect ratio higher than 3:1 dispersed in highly deionized gelatin, and a pyridinium carbamoyl hardener having the following formula: <IMAGE> wherein R1 and R2 each independently represents an alkyl group having from 1 to carbon atoms, an aryl group having from 6 to 15 carbon atoms, an aralkyl group having from 7 to 15 carbon atoms, or R1 and R2 together form the atoms required to complete a heterocyclic ring, R3 represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a carbamoyl group, a ureido group, and R4 represents an alkylene group having from 1 to 4 carbon atoms or a single chemical bond.
申请公布号 US5607827(A) 申请公布日期 1997.03.04
申请号 US19950531714 申请日期 1995.09.21
申请人 MINNESOTA MINING & MANUFACTURING 发明人 KIRK, MARK P.;PARODI, STEFANO;VACCA, PAOLO
分类号 G03C1/005;G03C1/035;G03C1/047;G03C1/30;(IPC1-7):G03C1/035 主分类号 G03C1/005
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