-
公开(公告)号：US5314790A
公开(公告)日：1994-05-24
申请号：US892846
申请日：1992-06-03
CPC分类号： G03C1/35 , G03C1/035 , Y10S430/166
摘要： Monocyclic and polycyclic azoles having the following formula modify the tone of a silver image formed from a fine grain radiation sensitive silver chlorobromide emulsion layer in which the silver chlorobromide grains have a mean equivalent circular diameter of less than 0.3 .mu.m. The azoles have the formula: ##STR1## wherein Z is --N.dbd. or --C(R.sup.5).dbd. where R.sup.5 is hydrogen, --NH.sub.2, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;R.sup.4 is hydrogen, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;R.sup.4 and R.sup.5 together complete a 5 or 6 membered heterocyclic nucleus containing 1 to 3 ring nitrogen atoms;L is a divalent aliphatic linking group containing 1 to 8 carbon atoms;T is an aliphatic terminal group containing 1 to 8 carbon atoms;m is 0 or 1;n is an integer of 1 to 4; andp is an integer of 2 to 4.
摘要翻译： 具有下式的单环和多环唑改性由氯化银氯化银颗粒的平均当量圆直径小于0.3μm的细晶粒辐射敏感性氯化银乳剂层形成的银图像的色调。 唑类具有下式：其中Z是-N =或-C（R5）=其中R5是氢，-NH2，1至8个碳原子的脂族或1至8个碳原子的芳族; R4是氢，1至8个碳原子的脂族或1至8个碳原子的芳族; R4和R5一起完成含有1至3个环氮原子的5或6元杂环核; L是含有1至8个碳原子的二价脂族连接基团; T是含有1至8个碳原子的脂肪族端基; m为0或1; n为1〜4的整数， p为2〜4的整数。
-
公开(公告)号：US5292631A
公开(公告)日：1994-03-08
申请号：US892851
申请日：1992-06-03
CPC分类号： G03C5/16 , G03C1/0051 , G03C1/35 , Y10S430/167
摘要： Monocyclic and polycyclic azoles having the following formula enhance the covering power of a developed silver image formed from a radiographic element comprising a radiation sensitive tabular grain silver bromide, silver bromochloride or silver bromoiodide emulsion layer containing grains having a mean equivalent circular diameter of at least 0.3 .mu.m and a grain population wherein at least 50 percent of the total grain population projected area is accounted for by tabular grains having a tabularity of greater than 8, as determined by the relationship: ##EQU1## wherein T is tabularity; ECD is the mean effective circular diameter in .mu.m of the tabular grains; and t is the mean thickness in .mu.m of the tabular grains. The azoles have the formula: ##STR1## wherein Z is --N.dbd. or --C(R.sup.5).dbd. where R.sup.5 is hydrogen, --NH.sup.2, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;R.sup.4 is hydrogen, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;R.sup.4 and R.sup.5 together complete a 5 or 6 membered heterocyclic nucleus containing 1 to 3 ring nitrogen atoms;L is a divalent aliphatic linking group containing 1 to 8 carbon atoms;T is an aliphatic terminal group containing 1 to 10 carbon atoms;m is 0 or 1;n is an integer of 0 to 4; andp is an integer of 2 to 4.
摘要翻译： 具有下式的单环和多环唑增强了由包含辐射敏感的片状颗粒溴化银，溴氯化银或溴碘化银乳剂层形成的显影银图像的覆盖能力，该层含有平均当量圆直径至少为0.3的晶粒 （我的）m和粮食人口，其中总粮食种群投资面积的至少50％是由具有大于8的平片状的片状颗粒占据的，由以下关系确定：（*化学结构*）其中T是片状 ; ECD是片状颗粒的（my）m的平均有效圆直径; t是片状颗粒的（my）m的平均厚度。 唑类具有下列通式：（*化学结构*）（I）其中Z为-N =或-C（R5）=其中R5为氢，-NH2为1至8个碳原子的脂族或1至8个碳的芳族 原子 R4是氢，1至8个碳原子的脂族或1至8个碳原子的芳族; R4和R5一起完成含有1至3个环氮原子的5或6元杂环核; L是含有1至8个碳原子的二价脂族连接基团; T是含有1至10个碳原子的脂肪族端基; m为0或1; n为0〜4的整数。 p为2〜4的整数。
-
13.发明授权公开(公告)号：US06312883B1
公开(公告)日：2001-11-06
申请号：US09599468
申请日：2000-06-22
IPC分类号： G03C108
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US6042986A
公开(公告)日：2000-03-28
申请号：US69390
申请日：1998-04-29
CPC分类号： G03C5/17 , G03C5/16 , Y10S430/145 , Y10S430/167
摘要： Portal localization radiographic elements and a process of confirming the targeting of a beam of X-radiation of from 4 to 25 MVp using the portal radiographic elements are disclosed. The X-radiation is directed at a subject containing features that are identifiable by differing levels of X-radiation absorption. After a first X-radiation exposure a shield containing a portal is placed between the subject and the source of X-radiation. X-radiation is directed at the subject through the portal. In each instance the X-radiation leaving the subject impinges on a metal screen, causing it to emit electrons, and the electrons impinge upon a fluorescent screen, causing it to emit light, creating during the first and second exposures first and second superimposed latent images in the radiographic element. A processor is employed to convert the latent images to viewable silver images from which intended targeting of the X-radiation passing through the portal in relation to the identifiable features of the subject is realized. The processor relies on attenuation of an infrared beam of a wavelength from 850 to 1100 nm by the radiographic element for activation, and at least one of the hydrophilic colloid layers of the radiographic element contains particles having an index of refraction in the wavelength range of from 850 to 1100 nm that differs from that of the hydrophilic colloid by at least 0.2 to create a specular density capable of attenuating the infrared beam and activating the processor.
摘要翻译： 公开了门静脉定位放射照相元件和使用门静脉造影元件确定4至25MVp的X射线束的靶向的过程。 X射线指向包含可通过不同水平的X射线吸收鉴定的特征的受试者。 在第一次X辐射暴露之后，包含门静脉的屏蔽物放置在受试者和X辐射源之间。 X辐射通过门户指向对象。 在每种情况下，离开物体的X射线撞击在金属屏幕上，使其发射电子，并且电子撞击在荧光屏上，使其发光，在第一次和第二次曝光期间产生第一和第二叠加潜像 在射线照相元件。 使用处理器将潜像转换成可见的银图像，从而实现与被摄体的可识别特征相关的通过门户的X射线的目标瞄准。 处理器依赖于用于激活的放射线照相元件从850nm到1100nm的波长的红外光束的衰减，并且放射线照相元件的至少一个亲水胶体层含有具有波长范围内的折射率的粒子 850至1100nm，其不同于亲水胶体的至少0.2以产生能够衰减红外光束并激活处理器的镜面密度。
-
公开(公告)号：US5773206A
公开(公告)日：1998-06-30
申请号：US840517
申请日：1997-04-21
IPC分类号： G03C1/00 , G03C1/035 , G03C1/74 , G03C1/76 , G03C1/825 , G03C1/91 , G03C5/02 , G03C5/16 , G03C5/26
CPC分类号： G03C1/8255 , G03C5/164 , G03C1/035 , G03C5/02 , G03C5/26 , Y10S430/145 , Y10S430/164 , Y10S430/167
摘要： An element capable of forming a silver image is disclosed containing insufficient radiation-sensitive silver halide grains to render the element detectable by an infrared sensor. The element has been modified to increase infrared specular density by the inclusion of, in a hydrophilic colloid dispersing medium, particles (a) being removable from the element during a rapid access processing cycle, (b) having a mean size of from 0.3 to 1.1 .mu.m and at least 0.1 .mu.m larger than the mean grain size of the radiation-sensitive grains, and (c) having an index of refraction at the wavelength of the infrared radiation that differs from the index of refraction of the hydrophilic colloid by at least 0.2.
摘要翻译： 公开了能够形成银图像的元件，其包含不足的辐射敏感卤化银颗粒，以使该元件可被红外传感器检测。 通过在亲水胶体分散介质中包含在快速进入处理循环期间从元件中除去的颗粒（a），（b）具有0.3至1.1的平均尺寸，该元件已被修饰以增加红外镜面密度 并且比辐射敏感颗粒的平均粒度大至少0.1μm，以及（c）在红外辐射的波长处具有与亲水胶体的折射率不同的折射率， 至少0.2。
-
-
-
-
搜索结果
15 条记录 (耗时 0.037 秒)
