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    • 1. 发明授权
    • Photographic element, dispersion, compound and process
    • 摄影元素,分散体,复合物和工艺
    • US06190851B1
    • 2001-02-20
    • US09473790
    • 1999-12-28
    • John W. HarderJames S. HonanAlbert J. Mura
    • John W. HarderJames S. HonanAlbert J. Mura
    • G03C108
    • G03C7/346G03C7/3885
    • Disclosed is a photographic element complising a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I): wherein R1 and R3 independently represent hydrogen or an alkyl group; R2 represents a carbocyclic or heterocyclic aromatic group; n represents 1, 2, or 3; each X is an independently selected substituent where at least one X located at a position of the phenyl ring meta or para to the sulfonyl group and is either an alkoxy group having a branched carbon or an aiyloxy group; and Z represents hydrogen or a group that can be split off by the reaction of the coupler with an oxidized color-developing compound; provided that the substituents of the compound of formula (I) are selected so that the compound has a melting point of 160° C. or less. The element provides improved phase stability during manufacturing while exhibiting satisfactory hue and dye light stability.
    • 公开了一种照相元件,其与具有式(I)的蓝色染料形成成色剂相关联的感光卤化银乳剂层:其中R1和R3独立地表示氢或烷基; R2表示碳环或杂环芳族基团; n表示1 ,2或3;每个X是独立选择的取代基,其中至少一个X位于苯环的位置上位于磺酰基的间位或对位,并且是具有支链碳或芳氧基的烷氧基; 并且Z表示氢或可通过偶合剂与氧化显色化合物的反应而分离的基团;条件是选择式(I)化合物的取代基使化合物的熔点为160℃ C.或更少。该元件在制造过程中提供改善的相稳定性,同时具有令人满意的色调和染料光稳定性。
    • 3. 发明授权
    • Photographic element
    • 摄影元素
    • US06420103B1
    • 2002-07-16
    • US09266178
    • 1999-03-10
    • James S. HonanThomas A. RosiekBrian ThomasDavid D. Miller
    • James S. HonanThomas A. RosiekBrian ThomasDavid D. Miller
    • G03C138
    • G03C7/3885G03C7/362G03C7/367G03C7/38
    • Silver halide light sensitive photographic elements are disclosed comprising a support bearing at least one yellow image forming hydrophilic colloid layer comprising a yellow dye-forming coupler and a trialkyl citrate coupler solvent of the formula C3H4(OH)(CO2R)3, where each R independently represents an alkyl group and the total number of carbon atoms for the three R groups combined is greater than 6. The combination of such citrate ester solvents with yellow dye forming couplers in photographic elements leads to both good reactivity and good image-dye light stability. The advantages of the invention are particularly useful for photographic color paper elements on reflective supports.
    • 公开了卤化银光敏感照相材料,其包括载体,该载体承载至少一个黄色图像形成亲水胶体层,其包含黄色染料形成成色剂和式C 3 H 4(OH)(CO 2 R)3的三烷基柠檬酸酯偶联剂溶剂,其中每个R独立地 代表烷基,并且三个R基团的总碳原子数大于6.这些柠檬酸酯溶剂与形成成色剂的黄色染料在照相元件中的组合导致良好的反应性和良好的图像染料光稳定性。 本发明的优点对于反射支撑件上的照相彩色纸元件特别有用。
    • 7. 发明授权
    • Process for making a direct dispersion of a photographically useful
material
    • 使照相用材料直接分散的方法
    • US5998120A
    • 1999-12-07
    • US597
    • 1997-12-30
    • Richard W. ConnellyJames S. HonanAndrew M. Howe
    • Richard W. ConnellyJames S. HonanAndrew M. Howe
    • G03C1/047G03C7/388
    • G03C7/3882G03C1/047G03C2001/0471G03C2200/36G03C2200/42Y10S977/887
    • A process for making a direct dispersion of a photographically useful material is discloses comprising: mixing (i) an aqueous phase comprising a gelatin solution and (ii) a liquid organic phase comprising a photographically useful material under conditions of high shear or turbulence to form a fine dispersion of the organic phase having an average particle size of less than 0.5 micron dispersed in the aqueous phase; wherein the gelatin solution comprises a mixture of a first gelatin having an isoelectric point pH of less than or equal to 5.2 and a second gelatin having an isoelectric point pH of greater than or equal to 6.0. In accordance with the invention, the use of blends of a first gelatin having an pI of less than or equal to 5.2, such as a conventional lime processed gelatin, and a second gelatin having an pI of greater than or equal to 6.0, such as an acid processed gelatin, in a direct photographic dispersion yields a substantial reduction in viscosity in comparison to the use of the first gelatin alone, which reduction is greater than would be expected by just using blends of the first gelatin with another relatively low pI gelatin having an equivalent inherent viscosity as the second gelatin. In accordance with preferred embodiments of the invention, relatively low levels of APO gelatin may be used partially replacing LPO gelatin in a dispersion formulation to obtain significant viscosity reduction while minimizing adverse effects which may be associated with the use of higher levels of acid processed gelatin.
    • 公开了一种用于制造照相用材料的直接分散的方法,其包括:(i)包含明胶溶液的水相和(ii)在高剪切或湍流条件下包含照相用材料的液体有机相,形成 分散在水相中的平均粒度小于0.5微米的有机相的细分散; 其中所述明胶溶液包含等电点pH小于或等于5.2的第一明胶和等电点pH大于或等于6.0的第二明胶的混合物。 根据本发明,使用pI小于或等于5.2的第一明胶(例如常规的石灰加工明胶)和pI大于或等于6.0的第二明胶的共混物的使用,例如 与直接照相分散体中的酸加工明胶相比,单独使用第一种明胶相比,粘度显着降低,这比通过仅使用第一种明胶与另一种具有较低pI明胶的共混物预期的降低 与第二种明胶相当的固有粘度。 根据本发明的优选实施方案,相对低水平的APO明胶可以部分地替代分散体制剂中的LPO明胶以获得显着的粘度降低,同时最小化可能与使用较高水平的酸加工明胶相关的不利影响。
    • 8. 发明授权
    • Photographic elements containing blend of cyan dye-forming couplers
    • 含有青色染料成色剂的混合物的照相元件
    • US06261755B1
    • 2001-07-17
    • US09514632
    • 2000-02-28
    • Danuta GibsonJames S. HonanThomas A. Rosiek
    • Danuta GibsonJames S. HonanThomas A. Rosiek
    • G03C108
    • G03C7/342G03C1/34G03C1/815G03C7/3006G03C7/3212G03C7/34G03C7/3885G03C7/39216G03C7/39256
    • The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith: (A) a phenolic cyan dye-forming narrow bandwidth “NB coupler”; (B) a phenolic cyan dye-forming coupler of formula (II): wherein: R3 is an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; R4 is an unsubstituted or substituted alkyl group; R5 is hydrogen, halogen or an unsubstituted or substituted alkyl or aryl group or a 5-10 membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; and Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color-developing agent; and (C) a stabilizer of formula (III) wherein: each Y is an independently selected substituent and m is 0 to 4; and each T is an independently selected substituent and p is 0 to 4. Preferably the element has associated therewith one or more high-boiling solvents of formula (IV) wherein: R1 is an unsubstituted or substituted alkyl or aryl group; and G is an unsubstituted or substituted alkyl group.
    • 本发明提供了一种照相元件,其包含至少一种与之相关的感光卤化银乳剂层:(A)形成苯酚青色染料的窄带宽“NB成色剂”;(B)式(B)的酚青色染料成色剂 II):其中:R3是未取代或取代的烷基或芳基或含有一个或多个选自氮,氧和硫的杂原子的5-10元杂环,该环是未取代或取代的; R4是未取代或取代的 烷基; R5是氢,卤素或未取代或取代的烷基或芳基或含有一个或多个选自氮,氧和硫的杂原子的5-10元杂环,该环是未取代的或被取代的; Z为氢原子或可通过偶合剂与氧化显色剂的反应而分离的基团; 和(C)式(III)的稳定剂,其中:每个Y是独立选择的取代基,m是0-4; 所述T是独立选择的取代基,p是0至4.优选所述元素与一种或多种式(Ⅳ)的高沸点溶剂缔合,其中:R 1为未取代或取代的烷基或芳基; G是未取代或取代的烷基。