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    • 1. 发明授权
    • Photographic element containing a speed-enhancing compound
    • 含有增速化合物的摄影元件
    • US07455959B2
    • 2008-11-25
    • US10574669
    • 2004-10-01
    • Bernard A. ClarkPhilip A. AllwayTania ZuberiStephen P. SingerCharles E. HecklerLouis E. Friedrich
    • Bernard A. ClarkPhilip A. AllwayTania ZuberiStephen P. SingerCharles E. HecklerLouis E. Friedrich
    • G03C1/46G03C1/06G03C1/36G03C1/08G03C5/18
    • G03C7/39252G03C7/3022G03C7/3029G03C7/3924G03C2001/03511G03C2007/3034
    • The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction with oxidized developer and which enables the photographic speed of the element to be increased by at least 0.05 stop without increasing granularity, compared to the same element without the compound, wherein the compound of formula (I) has the structure: wherein X is H or a substituent; Z represents the atoms necessary to complete an unsubstituted or substituted imidazole ring, which may form part of a fused unsubstituted or substituted ring system containing no further ring heteroatoms; wherein there is present at least one —NH group either in the imidazole ring or directly attached to the imidazole ring as part of X; provided that (a) when Z represents the atoms necessary to complete an unsubstituted or substituted benzimidazole ring, an —NH group is directly attached to the imidazole ring as part of X, and X is located between the imidazole nitrogen atoms; (b) when the —NH group is located in the ring adjacent to the carbon atom bearing X, and X is located between the imidazole nitrogen atoms, the imidazole ring is not fused to a phenanthrene ring. The compounds of formula (I) increase speed without a concomitant increase in size of the light-sensitive silver halide grains.
    • 本发明提供了一种彩色照相元件,其包括至少一种感光卤化银乳剂层或不含银的光不敏感层,其中这些层中的至少一层含有经历较少的式(I)的无色咪唑化合物 与氧化显影剂进行10%以上的化学或氧化还原反应,并且与没有化合物的相同元素相比,使得元件的照相速度可以提高至少0.05个停止而不增加粒度,其中式(I)化合物具有 结构:其中X是H或取代基; Z表示完成未取代或取代的咪唑环所必需的原子,其可以形成不含其它环杂原子的稠合未取代或取代的环系的一部分; 其中在咪唑环中存在至少一个-NH基团或作为X的一部分直接连接到咪唑环上; 条件是(a)当Z表示完成未取代或取代的苯并咪唑环所需的原子时,-NH基团作为X的一部分直接连接到咪唑环上,X位于咪唑氮原子之间; (b)当-NH基团位于与带有X的碳原子相邻的环中,X位于咪唑氮原子之间时,咪唑环不与菲环稠合。 式(I)的化合物增加速度,而不会伴随着感光卤化银颗粒的尺寸增加。
    • 2. 发明授权
    • Method of preparation of direct dispersions of photographically useful chemicals
    • 制备摄影有用化学品的直接分散体的方法
    • US07338756B2
    • 2008-03-04
    • US10692535
    • 2003-10-24
    • Paul L. ZengerleRichard K. RothrockJerrold N. PoslusnyStephen P. SingerPeter P. GarrisiPaul B. Merkel
    • Paul L. ZengerleRichard K. RothrockJerrold N. PoslusnyStephen P. SingerPeter P. GarrisiPaul B. Merkel
    • G03C1/005G03C1/08
    • G03C7/3885G03C1/005G03C2001/0854
    • 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.
    • 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。
    • 3. 发明授权
    • Photographic material with improved development inhibitor releases
    • 具有改善发展抑制剂释放的摄影材料
    • US07175975B2
    • 2007-02-13
    • US11211937
    • 2005-08-25
    • Stephen P. SingerChristopher GroteRobert C. StewartJohn W. HarderDavid S. RossJanet N. YounathanLouis Elbert Friedrich
    • Stephen P. SingerChristopher GroteRobert C. StewartJohn W. HarderDavid S. RossJanet N. YounathanLouis Elbert Friedrich
    • G03C1/46G03C1/08G03C7/26G03C7/32
    • G03C7/30523G03C7/3029G03C7/30552G03C7/3212G03C7/344G03C2007/3034Y10S430/156Y10S430/158
    • This invention relates to a multilayer silver halide photographic element, generally processed with phenylenediamine based developer solutions, comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one layer additionally contains a 2-substituted-5-amino-1-napthol DIR according to Formula (I): wherein: X is chosen from among hydrogen, halogen atoms, an alkyl group with 6 carbon atoms or less or a N-substituted carbamoyl group where the N substituent is either an alkyl group with 6 carbon atoms or less or an aryl group with 8 total carbon atoms or less; R is a carbonyl or sulfonyl group; and INH is an inhibitor of silver development. It has been found that such 2-substituted-5-amino-1-napthol based DIRs have improved properties and can provide a conventional silver halide photographic element with excellent image structure and color reproduction.
    • 本发明涉及通常用基于苯二胺的显影剂溶液加工的多层卤化银照相元件,其中包含载体,该载体带有青色染料影像形成单元,该单元由至少一种红色感光卤化银乳剂层组成,所述红色感光卤化银乳剂层具有至少一种青色染料 包含至少一种具有与其相关的至少一种形成品红色染料的成色剂的至少一种感绿卤化银乳剂层的品红色染料影像形成单元和包含至少一种蓝色感光性银的黄色染料影像形成单元 卤化物乳剂层,其与至少一种黄色染料形成成色剂相关联,其中至少一层另外含有根据式(I)的2-取代-5-氨基-1-萘酚DIR:其中:X选自氢 卤素原子,6个碳原子或更少的烷基或N-取代的氨基甲酰基,其中N取代基是具有6个碳原子的烷基 或更少或具有8个总碳原子或更少的芳基; R是羰基或磺酰基; 而INH是银发展的抑制剂。 已经发现这种2-取代-5-氨基-1-萘酚基DIR具有改进的性能,并且可以提供具有优异的图像结构和色彩再现的常规卤化银照相元件。
    • 10. 发明授权
    • Azopyrazolone masking couplers
    • 唑吡酮掩蔽剂
    • US5492799A
    • 1996-02-20
    • US263642
    • 1994-06-22
    • Daniel L. KappRobert J. RossStephen P. SingerBernard A. Clark
    • Daniel L. KappRobert J. RossStephen P. SingerBernard A. Clark
    • G03C7/00C09B29/50G03C7/333G03C7/384G03C7/18
    • C09B29/366G03C7/3335
    • The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:(1) a parent group containing a -1-phenyl-3-anilinopyrazolin-5-one having electron-withdrawing substituents on the phenyl and anilino rings of a type and number sufficient to provide a combined Hammett sigma(para) value for such substituents of at least 1.4;(2) a coupling-off group at the 4 position of the pyrazolone of the parent group comprising an arylazo dye containing on the aryl ring the following:(A) a substituent para to the azo functionality selected from the group consisting of hydroxyl, and alkoxy, carbonamido, and sulfonamido, each unsubstituted or substituted with nonaromatic groups, and(B) "n" additional substituents selected from the group consisting of alkyl, alkoxy, carbonamido, and sulfonamido, unsubstituted or substituted with nonaromatic groups, where "n" is 0 to 4;provided that substituent (A) and a substituent (B) may form a ringwherein one of the substituents (A) or (B) contains an alkyl group of at least 8 carbon atoms, unsubstituted or substituted with nonaromatic substituents, and said substituent contains at least 70% of the saturated carbon atoms in all of the substituents (A) and (B) provided that where the substituent (A) forms a ring with a substituent (B), the entire ring will be counted as said one of the substituents which contains an alkyl group of at least 8 carbon atoms for purposes of satisfying the 70% requirement.
    • 本发明提供了一种照相元件,其包括带有感光照相卤化银层的载体,其具有与之相关的掩蔽成色剂,其包含:(1)含有具有吸电子的1-苯基-3-苯胺基吡唑啉-5-酮的母体基团 苯基和苯胺基环上的取代基的类型和数目足以提供至少1.4的这种取代基的组合哈米特σ(对)值; (2)在母体基团的吡唑啉酮的4位上的偶联基团,其包含在芳基环上含有芳基偶氮染料,如下:(A)选自羟基和 烷氧基,碳酰胺基和亚磺酰氨基,各自未取代或被非芳族基团取代,和(B)选自烷基,烷氧基,碳酰氨基和亚磺酰氨基的“n”个附加取代基,未取代或被非芳族基团取代,其中“n” 为0〜4; 条件是取代基(A)和取代基(B)可以形成环,其中取代基(A)或(B)之一含有至少8个碳原子的烷基,未取代或被非芳族取代基取代,所述取代基包含 所有取代基(A)和(B)中的饱和碳原子的至少70%条件是当取代基(A)与取代基(B)形成环时,整个环将按照 含有至少8个碳原子的烷基的取代基用于满足70%的要求。