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1.发明授权Use of acid processed ossein gelatin and chain-extened acid processed ossein gelatin as peptizers in the preparation of photographic emulsions 失效使用酸处理的骨胶原明胶和链延长酸处理的骨胶原明胶作为摄影乳剂的制备中的胶溶剂
公开(公告)号：US5378598A
公开(公告)日：1995-01-03
申请号：US992301
申请日：1992-12-21
申请人： Pranab Bagchi , Melvin D. Sterman , Jacob I. Cohen
发明人： Pranab Bagchi , Melvin D. Sterman , Jacob I. Cohen
CPC分类号： G03C1/047 , C08H1/06 , C09H7/00 , G03C2001/0471
摘要： The invention provides a method of nucleating silver halide particles wherein said nucleation is carried out in the presence of acid processed ossein (APO) gelatin or chain-extended acid processed ossein (CE-APO) gelatin and the composition formed therefrom.
摘要翻译： 本发明提供了一种成核卤化银颗粒的方法，其中所述成核在酸处理的骨胶原（APO）明胶或链延长的酸处理的骨胶质素（CE-APO）明胶及其形成的组合物存在下进行。
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2.发明授权Use of acid processed ossein gelatin and chain-extended acid processed ossein gelatin as peptizers in the preparation of photographic elements 失效使用酸处理的骨胶原明胶和链延长的酸处理的骨胶原明胶作为摄影元件的制备中的胶溶剂
公开(公告)号：US5536630A
公开(公告)日：1996-07-16
申请号：US312204
申请日：1994-09-26
申请人： Pranab Bagchi , Melvin D. Sterman , Jacob I. Cohen
发明人： Pranab Bagchi , Melvin D. Sterman , Jacob I. Cohen
CPC分类号： G03C1/047 , C08H1/06 , C09H7/00 , G03C2001/0471
摘要： The invention provides a method of nucleating silver halide particles wherein said nucleation is carried out in the presence of acid processed ossein (APO) gelatin or chain-extended acid processed ossein (CE-APO) gelatin and the composition formed therefrom.
摘要翻译： 本发明提供了一种成核卤化银颗粒的方法，其中所述成核在酸处理的骨胶原（APO）明胶或链延长的酸处理的骨胶质素（CE-APO）明胶及其形成的组合物存在下进行。
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公开(公告)号：US5391468A
公开(公告)日：1995-02-21
申请号：US146269
申请日：1993-10-29
CPC分类号： G03C1/0051
摘要： A photographic element capable of forming a reversal image is disclosed having an emulsion layer containing a blend of spectrally sensitized tabular iodohalide grains and a second, slower fine grain population of a higher overall solubility silver salt content for increasing speed and contrast. A second dye is adsorbed to the surface of the second grain population to provide a further increase in threshold speed.
摘要翻译： 公开了一种能够形成反转图像的照相元件，其具有包含光谱增感的片状碘代卤化物颗粒的混合物的乳剂层和更高的总溶解度银盐含量的第二较慢的细晶种群，用于增加速度和对比度。 第二染料被吸附到第二颗粒群的表面以提供阈值速度的进一步增加。
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公开(公告)号：US5272048A
公开(公告)日：1993-12-21
申请号：US846306
申请日：1992-03-04
申请人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
发明人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
IPC分类号： G03C1/015 , G03C1/035 , G03C1/043 , G03C1/07 , G03C7/00 , G03C7/26 , G03C7/30 , G03C7/396 , G03C1/46
CPC分类号： G03C7/396 , G03C7/3022
摘要： A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the layer units containing in at least one layer a silver halide emulsion having a grain halide content of from 0 to 5 mole percent chloride, from. 0.5 to 20 mole percent iodide, and from 80 to 99.5 mole percent bromide, based on total silver.The photographic element is characterized in that at least one of the silver halide emulsion layers is a tabular grain emulsion layer in which the coefficient of variation of the tabular grain emulsion is less than 15 percent, based on the total grain population of the emulsion, and the total grain population of the tabular emulsion consists essentially of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25.
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5.发明授权Tabular grain emulsion containing reversal photographic elements exhibiting improved sharpness in underlying layers 失效包含反向摄影元素的片状颗粒乳液在下层显示出改善的锐度
公开(公告)号：US5236817A
公开(公告)日：1993-08-17
申请号：US860664
申请日：1992-03-30
申请人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
发明人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
CPC分类号： G03C7/396 , G03C7/3022
摘要： A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the dye image forming layer units containing at least one silver halide emulsion layer comprised of a vehicle and silver halide grains having (1) a halide content of from 0 to 5 mole percent chloride, from 0.1 to 20 mole percent iodide, and from 80 to 99.9 mole percent bromide, based on total silver. At least one of the silver halide emulsion layers in one of the layer units positioned to receive exposing radiation prior to at least one of the green or red recording layer units is a tabular grain emulsion layer in which a polyalkylene oxide block copolymer is present selected to allow the preparation of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25, accounting for greater than 97 percent of the total projected area of grains having an equivalent circular diameter of at least 0.2 .mu.m.
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