发明名称 Di:alkyl hydroxy benzoic ester fading inhibitor - for colour photographic silver halide material
摘要 <p>Fading inhibitor (dyestuff stabiliser) for Ag halide colour photographic material comprises a 3,5-dialkyl-4-hydroxy-benzoic ester of formula (I), (in which R1 and R2 are each alkyl, R is n-valent organic gp. and n = 1-6, pref. 1-4). (I) improves the light fastness of the image dyestuff and inhibits discolouration during prolonged storage or in the light and darkening of the cyan image.</p>
申请公布号 FR2446502(A1) 申请公布日期 1980.08.08
申请号 FR19790000803 申请日期 1979.01.12
申请人 KONISHIROKU PHOTO INDUSTRY CO LT 发明人
分类号 G03C7/392;(IPC1-7):03C7/26 主分类号 G03C7/392
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