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    • 4. 发明授权
    • Polymeric phosphonium mordant and photographic element containing the
same
    • 聚合物絮凝剂和含有它们的摄影元素
    • US4855211A
    • 1989-08-08
    • US228173
    • 1988-08-04
    • Wilhelmus JanssensDaniel M. TimmermanDaniel A. Claeys
    • Wilhelmus JanssensDaniel M. TimmermanDaniel A. Claeys
    • C08F212/14C07F9/54C08F12/00C08F30/02C08F230/02G03C8/56
    • G03C8/56C07F9/5456C08F30/02Y10S430/142Y10S525/916
    • Phosphonium mordanting polymer, that is capable of fixing acid dyes and that comprises randomly distributed recurring units corresponding to the general formula (I) ##STR1## wherein: A represents a unit that is derived from a copolymerizable monomer capable of quenching singlet oxygen e.g. N-vinylimidazole or 2-methyl-1-vinylimidazole;B represents a unit that is derived from a copolymerizable monomer having a hydrophobic character e.g. acrylonitrile or methacrylonitrile;n represents an integer of from 1 to about 12;each of R.sub.1, R.sub.2 and R.sub.3 (same or different) represents a C.sub.1 -C.sub.8 alkyl group e.g. n-butyl, a substituted C.sub.1 -C.sub.8 alkyl group e.g. a methylol group, a cyanoethyl group or an aralkyl group, a cycloalkyl group, an aryl group e.g. phenyl, or a substituted aryl group;X.sup.- represents an acid anion e.g. a halogen anion e.g. Cl.sup.-, Br.sup.- or I.sup.-, or an anion derived from an inorganic acid e.g. NO.sub.3.sup.-, HSO.sub.4.sup.-, SO.sub.4.sup.--, H.sub.2 PO.sub.4.sup.-, HPO.sub.4.sup.-- or PO.sub.4.sup.---;x represents from about 5 mole % to about 80 mole %;y represents from about 20 mole % to about 95 mole % andz represents from about 0 mole % to about 65 mole %.
    • 鏻媒染聚合物,其能够固定酸性染料并且包含对应于通式(I)的无规分布的重复单元其中:A表示衍生自能够淬灭单线态氧的可共聚单体的单元 例如 N-乙烯基咪唑或2-甲基-1-乙烯基咪唑; B表示衍生自具有疏水性的可共聚单体的单元, 丙烯腈或甲基丙烯腈; n表示1〜12的整数, R 1,R 2和R 3(相同或不同)各自表示C 1 -C 8烷基。 正丁基,取代的C 1 -C 8烷基,例如 羟甲基,氰乙基或芳烷基,环烷基,芳基例如。 苯基或取代的芳基; X-表示酸性阴离子例如 卤素阴离子 Cl-,Br-或I-,或衍生自无机酸的阴离子例如。 NO331,HSO4-,SO4-,H 2 PO 4 - ,HPO 4 - 或PO 4 - ; x表示约5摩尔%至约80摩尔%; y表示约20摩尔%至约95摩尔%,z表示约0摩尔%至约65摩尔%。