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US5354826A Polymeric magenta coupler and color photographic recording material that contains this polymeric magenta coupler 失效
聚合物品红色成色剂和含有该聚合物品红色成色剂的彩色照相记录材料

Polymeric magenta coupler and color photographic recording material that
contains this polymeric magenta coupler
摘要:
Polymeric color couplers with repeating units of a polymerized monomer K of formula I ##STR1## with R.sup.1 H or an optionally substituted alkyl group;R.sup.2, R.sup.3, R.sup.4 (identical or different) H, Cl, --COOH or optionally substituted alkyl groups; andX H or a group releaseable by coupling provide, during chromogenic development: magenta dye images with high dye yield and advantageous absorption level.
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