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    Cyan coupler dispersion with increased activity
    1.
    发明授权
    Cyan coupler dispersion with increased activity 失效
    青色成色剂分散体具有增加的活性

    公开(公告)号：US06680165B1

    公开(公告)日：2004-01-20

    申请号：US10279892

    申请日：2002-10-24

    申请人： Jerrold N. Poslusny ,  Paul B. Merkel ,  David A. Steele ,  Drake M. Michno ,  David S. Ross ,  Richard K. Rothrock ,  Paul L. Zengerle

    发明人： Jerrold N. Poslusny ,  Paul B. Merkel ,  David A. Steele ,  Drake M. Michno ,  David S. Ross ,  Richard K. Rothrock ,  Paul L. Zengerle

    IPC分类号： G03C108

    CPC分类号： G03C7/3006 ,  G03C7/342 ,  G03C7/346 ,  G03C7/3885 ,  G03C7/39216

    摘要： The invention provides a color negative photographic element comprising a light sensitive silver halide emulsion imaging layer having associated therewith a cyan dye-forming coupler dispersion comprising a first 2-ureido-5-acylamino substituted phenolic cyan dye-forming coupler [P], a second phenolic cyan dye-forming coupler [AP] where the 2-substituent is other than an ureido group, a substantially non-color-developable phenolic activator compound [ACT], and a non-phenolic organic coupler solvent having a boiling point of at least 150C; wherein compounds represented by [P], [AP], and [ACT] are present in the coupler dispersion in relative weight fractions of from 0.30 to 0.65 for [P], from 0.15 to 0.35 for [AP], and from 0.15 to 0.35 for [ACT], provided the sum of the relative weight fractions for [P]+[AP]+[ACT]=1, and the weight ratio of the non-phenolic coupler solvent in the coupler dispersion is from 0.30 to 2.0 relative to the sum of [P]+[AP]+[ACT]. Photographic elements incorporating the dispersion formulation of this invention provide good activity, a cyan dye of high density and acceptable absorption maximum for color negative films. In addition, partial substitution of less expensive cyan auxiliary phenolic coupler [AP] and activator [ACT] for cyan phenolic coupler [P] advantageously allows cost savings.

    摘要翻译： 本发明提供了一种彩色底片照相材料，其包含光敏卤化银乳剂成像层，其具有与其形成青色染料的成色剂分散体，其包含第一个2-脲基-5-酰基氨基取代的苯酚青色染料成色剂[P]，第二个 酚类青色染料形成成色剂[AP]，其中2-取代基不是脲基，基本上不显色的酚类活化剂化合物[ACT]和至少具有沸点的非酚类有机成色剂溶剂 150C; 其中由[P]，[AP]和[ACT]表示的化合物在[P]为0.30〜0.65，[AP]为0.15〜0.35，0.15〜0.35的相对重量分数存在于成色剂分散体中 对于[ACT]，只要[P] + [AP] + [ACT] = 1的相对重量分数之和，耦合剂分散体中非酚类成色剂溶剂的重量比相对于 [P] + [AP] + [ACT]的总和。 结合本发明的分散体制剂的摄影元件提供了良好的活性，对于彩色底片，高密度和可接受的吸收最大值的青色染料。 另外，青色酚类偶联剂[P]的较便宜的青色辅助酚醛偶合剂[AP]和活化剂[ACT]的部分取代有利于节约成本。

    Method of preparation of direct dispersions of photographically useful chemicals
    2.
    发明授权
    Method of preparation of direct dispersions of photographically useful chemicals 失效
    制备摄影有用化学品的直接分散体的方法

    公开(公告)号：US07338756B2

    公开(公告)日：2008-03-04

    申请号：US10692535

    申请日：2003-10-24

    申请人： Paul L. Zengerle ,  Richard K. Rothrock ,  Jerrold N. Poslusny ,  Stephen P. Singer ,  Peter P. Garrisi ,  Paul B. Merkel

    发明人： Paul L. Zengerle ,  Richard K. Rothrock ,  Jerrold N. Poslusny ,  Stephen P. Singer ,  Peter P. Garrisi ,  Paul B. Merkel

    IPC分类号： G03C1/005 ,  G03C1/08

    CPC分类号： G03C7/3885 ,  G03C1/005 ,  G03C2001/0854

    摘要： A process for making a direct dispersion of a photographically useful material comprising: mixing (i) an aqueous phase and (ii) a liquid organic phase under conditions of shear or turbulence to form a dispersion of the organic phase dispersed in the aqueous phase; wherein the liquid organic phase comprises one or more photographically useful materials and one or more organic solvents having a boiling point of at least 150° C., a molecular weight less than or equal to 300, and a solvatochromic parameter β value greater than or equal to 0.50, wherein the weight ratio of the sum of the solvents having a boiling point of at least 150° C., a molecular weight less than or equal to 300, and a solvatochromic parameter β value greater than or equal to 0.50 to the photographically useful materials does not exceed 0.25. The use of relatively low levels of specified high-boiling organic solvents enables the direct dispersion of hydrophobic photographically useful materials with low solubility in conventional primary photographic useful solvents without crystallization problems or excessive decomposition.

    摘要翻译： 一种用于直接分散照相的有用材料的方法，包括：（i）水相和（ii）液态有机相在剪切或湍流条件下混合以形成分散在水相中的有机相的分散体; 其中液体有机相包含一种或多种照相用的材料和一种或多种沸点为至少150℃，分子量小于或等于300的有机溶剂，溶剂化变色参数β值大于或等于 至0.50，其中沸点为至少150℃，分子量小于或等于300的溶剂的总和与溶剂化变色参数β值大于或等于0.50的相对于照相的重量比 有用的材料不超过0.25。 使用相对低含量的特定高沸点有机溶剂使得能够在常规的主要照相有用溶剂中直接分散具有低溶解度的疏水照相用材料，而没有结晶问题或过度分解。