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    • 38. 发明授权
    • High chloride emulsion having high sensitivity and low fog
    • 高氯化物乳液具有高灵敏度和低雾度
    • US06740482B1
    • 2004-05-25
    • US08362107
    • 1994-12-22
    • Benjamin Teh-Kung ChenRoger Lok
    • Benjamin Teh-Kung ChenRoger Lok
    • G03C1005
    • G03C1/035G03C1/346
    • The invention provides a radiation sensitive emulsion comprised of a dispersing medium and silver iodochloride grains WHEREIN the silver iodochloride grains are partially bounded by {100} crystal faces satisfying the relative orientation and spacing of cubic grains and contain from 0.05 to 1 mole percent iodide, based on total silver, with maximum iodide concentrations located nearer the surface of the grains than their center and wherein said emulsion further comprises a thiosulfonate of Formula I and a sulfinate of Formula II wherein Formula I is Z1SO2SM1  (I) wherein Z1 is alkyl, aryl, heteroaryl, arylalkyl, substituted aryl or a polymeric backbone wherein the thiosulfonate group is repeated and M1 is a monovalent metal or a tetraalkylammonium cation, and Formula II is Z2SO2M2  (II) wherein Z2 is alkyl, aryl, heteroaryl, arylalkyl, substituted aryl or a polymeric backbone wherein the sulfinate group is repeated and M2 is a monovalent metal or a tetraalkylammonium cation.
    • 本发明提供了由分散介质和碘氯化银颗粒组成的辐射敏感乳液.HEERIN银碘银盐颗粒部分地由{100}晶面限定,满足立方晶粒的相对取向和间距,并且含有0.05至1摩尔%的碘化物,基于总银 ,其中最大碘化物浓度位于比其中心更靠近颗粒表面的位置,其中所述乳液还包含式I的硫代磺酸盐和式II的亚磺酸盐,其中在式I中其中Z 1为烷基,芳基,杂芳基,芳烷基,取代的芳基或聚合物主链,其中 重复硫代磺酸盐基团,M 1为一价金属或四烷基铵阳离子,而Ⅱ为其中Z2为烷基,芳基,杂芳基,芳基烷基,取代芳基或聚合物主链,其中重复亚磺酸基,M 2为一价金属或四烷基铵阳离子。
    • 39. 发明授权
    • Silver ion sequester and release agent
    • 银离子螯合剂和脱模剂
    • US06689335B1
    • 2004-02-10
    • US10324234
    • 2002-12-19
    • Joseph F. BringleyRoger LokNancy B. Liebert
    • Joseph F. BringleyRoger LokNancy B. Liebert
    • C01B1516
    • C01B25/37G03C1/035G03C1/43G03C2001/03517
    • A silver ion sequester and release agent is described which comprises a silver ion exchangeable material of the formula: M(H1−x−yAgxM′yPO4)2.nH2O; where M is Zr, Ti, Sn, Ge or Hf or any combination thereof; M′ is an Alkali or alkaline earth metal; x is a number from 0.10 to 0.80; y is a number from 0.15 to 0.85; (x+y) is a number from 0.25 to 0.95; and n is a rational number between 0 and 10. Processes for preparing such silver ion sequester and release agent material are also described comprising combining in an aqueous medium a crystalline or amorphous metal hydrogen phosphate ion exchange host material of the formula M(HPO4)2.nH2O with less than 2 molar equivalents of silver ions relative to the amount of ion exchange host material such that silver ions are exchanged for protons in the host material, and adding a base compound to the aqueous medium to achieve a pH of at least 4.4 and sequester at least 95% of the combined silver ions into the host material. Further described are photographic elements comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein one or more layers contain such a silver ion sequester and release agent which sequesters silver ions prior to photographic processing and releases silver ions upon exposure to photographic processing solutions.
    • 描述了银离子螯合剂和脱模剂,其包含下式的银离子可交换材料:其中M是Zr,Ti,Sn,Ge或Hf或其任何组合; M'是碱金属或碱土金属; x是从0.10到0.80的数字; y为0.15〜0.85的数; (x + y)为0.25〜0.95的数; 还描述了制备这种银离子螯合剂和脱模剂材料的方法,其包括在水性介质中结合式M(HPO 4)2的结晶或无定形金属磷酸氢盐离子交换主体材料 相对于离子交换主体材料的量使用小于2摩尔当量的银离子,使得银离子在主体材料中交换为质子,并将碱性化合物加入到水性介质中以达到至少4.4的pH 并将至少95%的组合银离子螯合到主体材料中。 进一步描述的是包含承载一个或多个亲水胶体层的载体的照相元件,所述亲水胶体层包括至少一个照相卤化银乳剂层,其中一个或多个层含有这样的银离子螯合物和释放剂,其在照相处理之前螯合银离子并释放银 暴露于照相处理溶液中的离子。
    • 40. 发明授权
    • Silver halide photographic elements containing bis Au(I) sensitizers
    • 含有双重Au(I)敏化剂的卤化银照相元件
    • US06686143B1
    • 2004-02-03
    • US10213992
    • 2002-08-07
    • Roger LokBrian P. ClearyAlton L. ChittyWeimar W. White
    • Roger LokBrian P. ClearyAlton L. ChittyWeimar W. White
    • G03C109
    • G03C1/09
    • This invention relates to a photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising a water soluble Au(I) complex having the formula [L—Au—L]n−M+n wherein the complex is symmetrical; L is an organothiosulfonato ligand which is an antifogging, stabilizing, or sensitizing compound, n is 1 to 4, and M is a cationic counterion. This invention further relates to a silver halide photographic element comprising a support and a silver halide emulsion layer, the emulsion layer comprising an organothiosulfonato Au(I) complex having the formula [A—SO2S—Au—SSO2—A]n−M+n wherein M is a cationic counterion; A is a substituted or unsubstituted organic group; and n is 1 to 4; and wherein the compound is symmetrical. It further relates to a method of preparing a silver halide emulsion utilizing said organothiosulfonato Au(I) complexes.
    • 本发明涉及一种包含载体和卤化银乳剂层的照相元件,所述乳液层包含具有所述络合物中的所述络合物的水溶性Au(I)络合物是对称的; L是有机硫磺酸盐配体,其是防雾,稳定或敏化化合物,n为1至4,M为阳离子抗衡离子。 本发明还涉及一种包含载体和卤化银乳剂层的卤化银照相元件,所述乳液层包含具有马来酰亚胺的有机硫代磺酰亚胺Au(I)络合物M是阳离子抗衡离子; A是取代或未取代的有机基团; n 是1到4; 并且其中化合物是对称的。还涉及使用所述有机硫代磺酰胺Au(I)络合物制备卤化银乳剂的方法。