公开(公告)号：US6159677A

公开(公告)日：2000-12-12

申请号：US86409

申请日：1998-05-29

Applicant: Nobuyuki Haraguchi

Inventor： Nobuyuki Haraguchi

IPC: G03C7/00 ,  G03C1/005 ,  G03C1/015 ,  G03C1/035 ,  G03C1/07 ,  G03C1/04 ,  G03C1/06

CPC classification number: G03C1/07 ,  G03C1/0051 ,  G03C2001/03517 ,  G03C2001/0357 ,  G03C2001/0478 ,  G03C2200/01

Abstract: A monodispersed silver halide emulsion has an average silver iodide content of 1 to 20 mol %, an average equivalent sphere diameter of 0.1 to 0.6 .mu.m, and 60% or more of the total projected area of all the grains in the emulsion are occupied by tabular silver halide grains each having principal planes composed of {100} faces in an amount of 80% or more based on the total surface area of each grain.

Abstract translation: 单分散的卤化银乳剂的平均碘化银含量为1〜20摩尔％，平均当量球径为0.1〜0.6μm，乳液中所有粒子的总投影面积的60％以上占据了 平板状卤化银颗粒，其各自具有基于每个颗粒的总表面积为80％以上的量的{100}面构成的主面。

公开(公告)号：US5952166A

公开(公告)日：1999-09-14

申请号：US13087

申请日：1998-01-26

Applicant: Roger Lok ,  Jerzy Z. Mydlarz

Inventor： Roger Lok ,  Jerzy Z. Mydlarz

IPC: G03C1/035 ,  G03C1/09 ,  G03C1/34 ,  G03C1/07

CPC classification number: G03C1/09 ,  G03C1/035 ,  G03C1/346

Abstract: The invention relates to an emulsion comprising sharp cornered silver chloride grains, said grains having a rounding index less than 0.3 and dithiolone dioxide.

Abstract translation: 本发明涉及包含尖角氯化银颗粒的乳液，所述颗粒具有小于0.3的舍入指数和二硫酮二氧化物。

公开(公告)号：US5935774A

公开(公告)日：1999-08-10

申请号：US100798

申请日：1998-06-19

Applicant: Joseph F. Bringley ,  Roger A. Bryant

Inventor： Joseph F. Bringley ,  Roger A. Bryant

IPC: G03C1/005 ,  G03C1/035 ,  G03C1/07 ,  G03C1/08

CPC classification number: G03C1/0051 ,  G03C1/035 ,  G03C1/07 ,  G03C1/08

Abstract: A radiation-sensitive silver halide emulsion is disclosed comprised of composite grains including host grains having predominantly {111} crystal faces, cuprous ions adsorbed to the {111} crystal faces of the host grains to act as a site director for subsequently deposited silver salt, and silver salt protrusions having their highest incidence adjacent at least one of the corners and edges of the host grains.

Abstract translation: 公开了一种辐射敏感的卤化银乳剂，其包括主要包含{111}晶面的主体颗粒的复合晶粒，吸附在主体晶粒的{111}晶面上的亚铜离子，用作随后沉积的银盐的位点导向体， 以及相邻于主体颗粒的角部和边缘中的至少一个的具有最高发生率的银盐突起。

公开(公告)号：US5928852A

公开(公告)日：1999-07-27

申请号：US728899

申请日：1996-10-10

Applicant: Katsuhisa Ohzeki

Inventor： Katsuhisa Ohzeki

IPC: G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/07 ,  G03C1/09 ,  G03C1/34

CPC classification number: G03C1/0053 ,  G03C1/035 ,  G03C1/07 ,  G03C1/0051 ,  G03C1/08 ,  G03C2001/03517 ,  G03C2001/03582 ,  G03C2001/0827 ,  G03C2001/0845 ,  G03C2001/093 ,  G03C2200/03

Abstract: A silver halide photographic emulsion is disclosed, comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide grain contained in the silver halide emulsion layer has a silver chloride content of 50 mol % or more, 30% or more of the surface area of the grain comprises a (111) face, and the silver halide grain is formed in the presence of at least one compound represented by formula (I) and contains a hexacyano complex represented by formula (II) such that the outermost layer of the grain has a hexacyano complex concentration of at least 1.times.10.sup.-4 mol/mol-Ag. ##STR1##

Abstract translation: 公开了一种卤化银照相乳剂，其包括其上具有至少一个卤化银乳剂层的载体，其中卤化银乳剂层中所含的卤化银颗粒的氯化银含量为50摩尔％以上，30重量％以上 晶粒的表面积包括（111）面，并且在至少一种由式（I）表示的化合物存在下形成卤化银颗粒，并且含有由式（II）表示的六氰基络合物，使得最外层 的颗粒具有至少1×10 -4 mol / mol-Ag的六氰基络合物浓度。

公开(公告)号：US5866315A

公开(公告)日：1999-02-02

申请号：US859640

申请日：1997-05-20

Applicant: Socman Ho ,  Nobuaki Kagawa ,  Noriyasu Kita

Inventor： Socman Ho ,  Nobuaki Kagawa ,  Noriyasu Kita

IPC: G03C5/17 ,  C09B23/06 ,  G03C1/00 ,  G03C1/005 ,  G03C1/015 ,  G03C1/035 ,  G03C1/07 ,  G03C1/09 ,  G03C1/18 ,  G03C1/34 ,  G03C5/26 ,  G03C1/14

CPC classification number: C09B23/06 ,  G03C1/0053 ,  G03C1/18 ,  G03C1/015

Abstract: A silver halide photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising a silver halide emulsion, wherein the silver halide emulsion comprises silver halide grains having an average iodide content of 0 to 1 mol %, at least 50% of total grain projected area is accounted for by tabular grains having an aspect ratio of 2 to 20; and the silver halide grains being spectrally sensitized with a sensitizing dye represented by the following formula (1) or (2): ##STR1##

Abstract translation: 公开了一种卤化银摄影感光材料，其包括其上具有包含卤化银乳剂的卤化银乳剂层的载体，其中所述卤化银乳剂包含平均碘化物含量为0至1摩尔％的卤化银颗粒，至少50 占总占地面积的百分比由长宽比为2〜20的片状颗粒构成; 并且卤化银颗粒用下式（1）或（2）表示的敏化染料进行光谱增感：式（1）式（2）

公开(公告)号：US5807665A

公开(公告)日：1998-09-15

申请号：US630335

申请日：1996-04-10

Applicant: Mitsuo Saitou

Inventor： Mitsuo Saitou

IPC: G03C1/005 ,  G03C1/015 ,  G03C1/04 ,  G03C1/07 ,  G03C1/053 ,  G03C1/035

CPC classification number: G03C1/0051 ,  G03C1/015 ,  G03C1/04 ,  G03C1/07

Abstract: A silver halide emulsion is disclosed, comprising at least a dispersing medium and silver halide grains, wherein at least 60% of the total projected area of silver halide grains is occupied by tabular grains having a crystal defect for anisotropic growth which have a {100} face as a main plane and an aspect ratio (diameter/thickness ratio) of not less than 2.0, and the right-angled parallelogram enclosed with {100} faces at the edges of the tabular grains or a right-angled parallelogram formed by extending the {100} faces at the edges having a slenderness side ratio (a ratio of the length of the long side to that of the short side) of 1 to 6; and said silver halide emulsion is prepared in the presence of a compound A.sup.0 and/or a compound B.sup.0, wherein the compound A.sup.0 represents an organic compound having covalently bonded to an individual molecule thereof at least two molecules of an adsorbable agent which accelerates formation of a {100} face of silver bromide grains, and the compound B.sup.0 represents an organic compound except gelatin having at least four alcoholic groups per molecule, both the compounds A.sup.0 and B.sup.0 are organic compounds except gelatin and other proteins. The emulsion is excellent in sensitivity, image quality and preservability.

Abstract translation: 公开了一种卤化银乳剂，其包含至少一种分散介质和卤化银颗粒，其中卤化银颗粒的总投影面积的至少60％由具有{100}的各向异性生长的晶体缺陷的片状颗粒占据， 作为主平面和纵横比（直径/厚度比）不小于2.0，并且由{100}包围的直角平行四边形面在片状颗粒的边缘或通过延伸形成的直角平行四边形 {100}在具有长径比（长边与短边的长度的比）的边缘处面对1至6; 并且所述卤化银乳剂在化合物A0和/或化合物B0的存在下制备，其中化合物A0表示与其各自分子共价键合的至少两个分子的可吸附剂的分解，其加速形成 {100}表面的溴化银颗粒，化合物B0表示除了每分子具有至少四个醇基的明胶之外的有机化合物，化合物A0和B0都是除明胶和其他蛋白质之外的有机化合物。 该乳液的灵敏度，图像质量和保存性都很好。

公开(公告)号：US5756277A

公开(公告)日：1998-05-26

申请号：US580188

申请日：1995-12-28

Applicant: Toru Sano

Inventor： Toru Sano

IPC: G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/07

CPC classification number: G03C1/0053 ,  G03C1/07

Abstract: A method for producing a silver halide emulsion comprising high silver chloride tabular grains each having a chloride content of 50 mol % or more and having a major plane comprising a (111) face, which comprises a step for conducting nucleation of said grains substantially in the absence of a crystal phase controlling agent to form grains which have two twin planes parallel with each other and of which most of the surface are (100) faces, a step for ripening said grains by adding a crystal phase controlling agent which adsorbs to the (111) face or a mixture of a crystal phase controlling agent which adsorbs to the (111) face and a protective colloid to reduce the ratio of grains other than the grains having two or more parallel twin planes and then a step for growing with remaining tabular grains having a major plane mainly comprising a (111) face to form tabular grains having a major plane comprising a (111) face.

Abstract translation: 一种卤化银乳剂的制造方法，其包含高氯化银片状颗粒，其各自具有50摩尔％以上的氯含量，并且具有包括（111）面的主面，其包括基本上在 不存在结晶相控制剂以形成具有彼此平行的两个平面并且其中大部分表面为（100）面的晶粒的晶粒;通过添加吸附至（100）表面的晶体相控制剂来成熟所述晶粒的步骤， 111）面或吸附到（111）面的结晶相控制剂和保护胶体的混合物，以降低具有两个或更多个平行双面的颗粒之外的晶粒的比例，然后是用剩余的片状生长的步骤 具有主要包括（111）面的主平面的颗粒形成具有包括（111）面的主平面的片状颗粒。

公开(公告)号：US5744297A

公开(公告)日：1998-04-28

申请号：US814209

申请日：1997-03-11

Applicant: Yun C. Chang ,  Rajesh V. Mehta ,  Lois A. Buitano

Inventor： Yun C. Chang ,  Rajesh V. Mehta ,  Lois A. Buitano

IPC: G03C1/005 ,  G03C1/07 ,  G03C1/035

CPC classification number: G03C1/0053 ,  G03C1/07

Abstract: A radiation-sensitive emulsion is disclosed in which at least 70 percent of total grain projected area is accounted for by tabular grains (a) having {100} major faces, (b) containing greater than 50 mole percent chloride, based on silver, (c) having a mean equivalent circular diameter in the range of from 2.0 to 5.0 .mu.m, and (d) exhibiting a mean thickness of 0.1 .mu.m or less. The emulsion is prepared by (a) precipitating up to 10 percent of the total silver forming the high chloride {100} tabular grains to create a first grain population under conditions that form a crystal lattice structure that favors the growth of high chloride {100} tabular grains, (b) thereafter rapidly introducing silver and halide ions to create a second grain population, and (c) growing the first grain population to create the high chloride {100} tabular grains by ripening out the second grain population.

Abstract translation: 公开了一种辐射敏感乳液，其中总颗粒投影面积的至少70％由具有{100}主面的片状颗粒（a）占据，（b）基于银，含有大于50摩尔％的氯化物（ c）平均当量圆直径在2.0至5.0μm的范围内，和（d）平均厚度为0.1μm或更小。 乳液通过以下步骤制备：（a）在形成高氯化物{100}片状颗粒的总银中沉淀高达10％，以在形成有利于高氯化物生长的晶格结构{100}的条件下产生第一晶粒群 （b）随后快速引入银和卤离子以产生第二颗粒群体，和（c）通过熟化第二颗粒群体生长第一谷粒以产生高氯化物{100}片状颗粒。

公开(公告)号：US5733716A

公开(公告)日：1998-03-31

申请号：US694396

申请日：1996-08-12

Applicant: Kazuyoshi Goan

Inventor： Kazuyoshi Goan

IPC: G03C1/005 ,  G03C1/07 ,  G03C5/17 ,  G03C1/043 ,  G03C1/035 ,  G03C1/09

CPC classification number: G03C5/17 ,  G03C1/0053 ,  G03C1/07 ,  G03C2001/0357 ,  G03C2001/093 ,  G03C2200/01 ,  G03C2200/48 ,  G03C2200/52 ,  Y10S430/167

Abstract: A silver halide black-and-white photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising silver halide grains, wherein at least 50% of the total grain projected area is accounted for by tabular grains having a chloride content of 20 mol % or more, two parallel {100}major faces and an average aspect ratio of 2 or more, said tabular grains being prepared by nucleating in the presence of a surfactant comprised of polyalkyleneoxide block copolymer.

Abstract translation: 公开了一种卤化银黑白照相感光材料，其包括其上具有包含卤化银颗粒的卤化银乳剂层的载体，其中总颗粒投影面积的至少50％由具有氯化物的片状颗粒占据 所述片状颗粒通过在由聚环氧烷烃嵌段共聚物组成的表面活性剂的存在下成核而制备，所述片状颗粒通过在20mol％以上的含量，两个平行的{100}主面和平均纵横比为2以上。

公开(公告)号：US5702879A

公开(公告)日：1997-12-30

申请号：US606715

申请日：1996-02-27

Applicant: Richard A. Barcock

Inventor： Richard A. Barcock

IPC: G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/043 ,  G03C1/06 ,  G03C1/07

CPC classification number: G03C1/0051 ,  G03C1/015 ,  G03C1/043 ,  G03C1/07

Abstract: The present invention relates to a process for preparing monodispersed tabular silver halide grain emulsions, said process comprising the following steps: (a) forming a population of silver halide nuclei in a dispersing medium having a pH lower than 3 and a pBr in the range of from 1 to 2, (b) ripening said population of silver halide nuclei in presence of a silver halide solvent, (c) performing a first growing of said silver halide nuclei at a pBr value in the range of from 1 to 2, and (d) performing a second growing of said silver halide nuclei at a value in the range of from 2 to 2.7. According to a preferred embodiment of the present invention a polyalkylene oxide-polyalkylsiloxane copolymer is present during at least one of the above mentioned steps (a) to (d). The process of the present invention enable the growth of monodispersed tabular silver halide grain emulsions having a reduced amount of non-conforming grains and a lower coefficient of variation (COV).

Abstract translation: 本发明涉及一种制备单分散片状卤化银颗粒乳剂的方法，所述方法包括以下步骤：（a）在pH低于3的分散介质中形成一组卤化银核，并且在 （b）在卤化银溶剂的存在下熟化所述卤化银核团数，（c）以1-2的pBr值进行所述卤化银核的第一次生长，和（b） d）将所述卤化银核的第二次生长在2至2.7的范围内。 根据本发明的优选实施方案，在上述步骤（a）至（d）中的至少一个期间存在聚环氧烷 - 聚烷基硅氧烷共聚物。 本发明的方法能够生长具有减少的不合格晶粒数量和较低变异系数（COV）的单分散片状卤化银颗粒乳剂。