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    • 4. 发明授权
    • Copolymeric mordants and photographic products and processes containing
same
    • 共聚媒染剂和含有它们的摄影产品和方法
    • US5395731A
    • 1995-03-07
    • US242298
    • 1994-05-13
    • J. Michael GrasshoffLloyd D. TaylorJohn C. Warner
    • J. Michael GrasshoffLloyd D. TaylorJohn C. Warner
    • G03C1/835G03C8/56G03C5/54
    • G03C1/835G03C8/56Y10S430/142
    • Copolymeric mordant materials containing recurring units according to the following formula are disclosed: ##STR1## In such copolymers, each of R.sup.1, R.sup.2 and R.sup.3 can independently be alkyl; substituted-alkyl; cycloalkyl; aryl; aralkyl; alkaryl; or at least two of R.sup.1, R.sup.2 and R.sup.3, together with the quaternary nitrogen atom to which they are bonded, can complete a saturated or unsaturated, substituted or unsubstituted nitrogen-containing heterocyclic ring; X is an anion; R.sup.4 is hydrogen or alkyl (e.g. methyl). The pendent "b" group contain hydrogen-bonding sites for promotion of self-associated aggregation and ring unsaturation for photocyclization and control of physical properties (e.g., water insensitivity) of the image-receiving layer. The copolymeric mordant materials can be utilized as image-receiving layers in photographic products and processes of the diffusion transfer type. The mordants are especially adapted to the production of dye images exhibiting favorable maximum density (D.sub.max) and rates of dye transfer properties.
    • 公开了含有根据下式的重复单元的共聚媒染材料:在这种共聚物中,R 1,R 2和R 3中的每一个可以独立地为烷基; 取代烷基; 环烷基 芳基; 芳烷基 烷芳基 或R 1,R 2和R 3中的至少两个与它们所键合的季氮原子一起可以完成饱和或不饱和的,取代或未取代的含氮杂环; X是阴离子; R4是氢或烷基(例如甲基)。 悬挂的“b”组包含用于促进自相关聚集和环不饱和度的氢键位置,用于光环化和控制图像接收层的物理性质(例如,水不敏感性)。 共聚媒染材料可用作照相产品中的图像接收层和扩散转移型的方法。 媒染剂特别适用于生产显示有利的最大密度(Dmax)和染料转移性能的染料图像。