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    • 43. 发明授权
    • Photographic material having improved color reproduction
    • 具有改进的色彩再现的照相材料
    • US06558893B1
    • 2003-05-06
    • US09716101
    • 2000-11-17
    • Richard L. PartonAndrei AndrievskyThomas L. PennerWilliam J. Harrison
    • Richard L. PartonAndrei AndrievskyThomas L. PennerWilliam J. Harrison
    • G03C110
    • G03C1/12G03C1/29
    • This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes comprising: (a) a first dye which is a cyanine dye of formula Ia and has a net charge of zero or −1  wherein the substituents are as defined in the specification; (b) a second dye which has at least one substituent that has a positive charge, and is a cyanine dye a merocyanine dye, arylidene dye, complex cyanine dye, complex merocyanine dye, homopolar cyanine dye, hemicyanine dye, styryl dye, hemioxonol dye, oxonol dye, anthraquinone dye, triphenylmethane dye, azo dye type, azomethines, or a coumarin dye, with the proviso that if the second dye is a cyanine dye, it is of formula IIa:  wherein the substituents are as defined in the specification; and wherein (c) the wavelength of maximum light absorption, in nanometers (nm), of the first dye and the wavelength of maximum light absorption of the second dye differ by at least 10 nm.
    • 本发明包括卤化银照相材料,其包含至少一种包含卤化银颗粒的卤化银乳剂,所述卤化银颗粒具有两种或多种染料的组合,所述组合包含:(a)第一种染料,其为式Ia的花青染料, 其中取代基如说明书中所定义;(b)具有至少一个具有正电荷的取代基的第二种染料,并且是花菁染料,部花青染料,亚芳基染料,络合花青染料,络合物 部花青染料,单极花青染料,半花青染料,苯乙烯基染料,半氧化ol染料,氧杂菁染料,蒽醌染料,三苯甲烷染料,偶氮染料型,偶氮甲碱或香豆素染料,条件是如果第二种染料是花青染料, 式IIa:其中取代基如说明书中所定义; 并且其中(c)第一染料的纳米(nm)的最大光吸收的波长和第二染料的最大光吸收的波长的波长相差至少10nm。
    • 44. 发明授权
    • Photographic material having enhanced light absorption
    • 具有增强的光吸收的照相材料
    • US06331385B1
    • 2001-12-18
    • US09151977
    • 1998-09-11
    • Joseph C. DeatonRichard L. PartonThomas L. PennerWilliam J. HarrisonDavid E. Fenton
    • Joseph C. DeatonRichard L. PartonThomas L. PennerWilliam J. HarrisonDavid E. Fenton
    • G03C129
    • G03C1/0051G03C1/29
    • This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, wherein the dye layers are held together by non-covalent forces or by in situ bond formation; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer. This invention also comprises a silver halide emulsion comprising silver halide tabular grains sensitized with at least one dye containing at least one anionic substituent and at least one dye containing at least one cationic substituent provides increased light absorption.
    • 本发明包括卤化银照相材料,其包含至少一种卤化银乳剂,其包含片状卤化银颗粒,其具有至少两个染色层,所述染料层包含(a)与卤化银颗粒相邻的内染料层,并且包含至少一种染料, 能够对卤化银进行光谱增感和(b)与内部染料层相邻的外部染料层并且包含至少一种染料,其中染料层通过非共价键或通过原位键形成保持在一起; 外染料层以等于或高于内染料层的能量吸收光; 并且外部染料层的能量发射波长与内部染料层的能量吸收波长重叠。本发明还包括卤化银乳剂,其包含用至少一种含有至少一个阴离子取代基的染料敏化的卤化银片状颗粒,并且至少 含有至少一个阳离子取代基的一种染料提供增加的光吸收。
    • 45. 发明授权
    • Photographic material having enhanced light absorption and low dye stain
    • 具有增强的光吸收和低染料染色的照相材料
    • US06312883B1
    • 2001-11-06
    • US09599468
    • 2000-06-22
    • Richard L. PartonThomas L. PennerStephen A. Hershey
    • Richard L. PartonThomas L. PennerStephen A. Hershey
    • G03C108
    • G03C1/29G03C1/22
    • A silver halide photographic material comprises at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dyes: (a) a first dye that has at least one anionic substituent and that is capable of spectrally sensitizing a silver halide emulsion; and (b) a second dye of formula II  wherein: R1 is a substituted or unsubstituted alkyl or aryl group; E3 represents the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered heterocyclic nucleus; Ar1 represents an electron-withdrawing substituted aryl, or a substituted or unsubstituted electron-withdrawing heteroaryl group; L11 through L14 are substituted or unsubstituted methine groups; s is 0 or 1; G1 is an electron-withdrawing group; G2 is O or dicyanovinyl (C(CN)2); W1 is a counterion if necessary.
    • 卤化银照相材料包含至少一种包含卤化银颗粒的卤化银乳剂,所述卤化银颗粒具有至少两种染料:(a)具有至少一个阴离子取代基且能够使卤化银乳剂光谱增感的第一种染料; 和(b)式II的第二种染料,其中:R1是取代或未取代的烷基或芳基; E3表示完成取代或未取代的五元或六元杂环核所必需的原子; Ar 1表示吸电子取代的 芳基或取代或未取代的吸电子杂芳基; L11至L14为取代或未取代的次甲基; s为0或1; G 1为吸电子基团; G 2为O或二氰基乙烯基(C(CN)2); 如果需要,W1是抗衡离子。
    • 46. 发明授权
    • Sensitizing dye combination for photographic materials
    • 敏化染料组合用于摄影材料
    • US5597687A
    • 1997-01-28
    • US545368
    • 1995-10-19
    • Thomas R. DoblesDavid A. DuMontPaul B. GilmanSang H. KimSteven G. LinkRichard L. Parton
    • Thomas R. DoblesDavid A. DuMontPaul B. GilmanSang H. KimSteven G. LinkRichard L. Parton
    • G03C1/08G03C1/29
    • G03C1/29
    • A supersensitizing dye combination for silver halide photographic materials is disclosed. The combination is of a first dye according to the formula: ##STR1## Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus,each L independently represents a substituted or unsubstituted methine group,n is a positive integer of from 1 to 4,p and q each independently represents 0 or 1,X represents a cation as needed to balance the charge of the molecule,A and A' each independently represents a divalent linking group such that at least one of H--A--SO.sub.3 H and H--A'--SO.sub.3 H would each have a log P value that is more negative than -0.3, anda second dye, having an oxidation potential that is at least about 0.08 volts less positive than the oxidation potential of the first dye and a reduction potential that is equal to or more negative than the reduction potential of the first dye, according to the formula: ##STR2## Z.sub.3 and Z.sub.4 each independently represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus,each L independently represents a substituted or unsubstituted methine group,m is a positive integer of from 1 to 4,r and s each independently represents 0 or 1,X' represents a counterion as needed to balance the charge of the molecule,R.sub.3 and R.sub.4 each independently represents substituted or unsubstituted alkyl or substituted or unsubstituted aryl.
    • 公开了用于卤化银照相材料的超敏化染料组合。 该组合是根据下式的第一种染料:并且表示完成取代或未取代的杂环核所需的原子,每个L独立地表示取代或未取代的次甲基,n是1至4的正整数,p和 q各自独立地表示0或1,X表示用于平衡分子的电荷所需的阳离子,A和A'各自独立地表示二价连接基团,使得HA-SO 3 H和H-A'-SO 3 H中的至少一个将 每个具有比-0.3更负的对数P值,并且具有比第一染料的氧化电位小至少约0.08伏的氧化电位的第二染料和等于或等于或等于或等于 根据下列公式,阴性比第一种染料的还原电位:完成取代或未取代的杂环核所必需的e原子,每个L独立地表示取代或未取代的 次甲基,m为1至4的正整数,r和s各自独立地表示0或1,X'表示平衡分子电荷所需的抗衡离子,R 3和R 4各自独立地表示取代或未取代的烷基 或取代或未取代的芳基。