Silver halide photographic emulsion and photographic element comprising it
    72.
    发明公开
    Silver halide photographic emulsion and photographic element comprising it 审中-公开
    Photographische Silberhalogenidemulsion und photoisches元素enthaltend diese乳液

    公开(公告)号:EP1416321A1

    公开(公告)日:2004-05-06

    申请号:EP03022435.6

    申请日:2003-10-07

    申请人: FERRANIA S.p.A.

    IPC分类号: G03C1/005 G03C1/04 G03C5/17

    摘要: A silver halide emulsion which comprises silver halide tabular grains showing an average thickness lower than 0.15 µm, an average diameter of at least 1.20 µm and an average aspect ratio of at least 8:1 dispersed in a hydrophilic colloid mixture comprising from 10% to 30% by weight of dextran, from 20% to 40% by weight of a hydrogenated polysaccharide having an average molecular weight equal to or lower than 10,000, and from 40% to 60% by weight of gelatin and photographic element comprising it.

    摘要翻译: 卤化银乳剂包含平均厚度低于0.15μm,平均直径> =1.20μm,平均长宽比> = 8:1的卤化银片状颗粒,其分散在包含葡聚糖(10- 30重量%),平均分子量= 10,000的氢化多糖(20-40重量%)和明胶(40-60重量%)。 包括用于卤化银照相元件的独立权利要求,其包括载体,涂覆在载体侧面的卤化银乳剂层和涂覆在乳剂层上的保护层。 乳剂层包含如上所述的卤化银乳剂。

    Preparation of high bromide photographic emulsions with starch peptizer
    73.
    发明公开
    Preparation of high bromide photographic emulsions with starch peptizer 审中-公开
    照相Hochbromidemulsionen的制备,所用的淀粉作为胶溶剂

    公开(公告)号:EP1213608A1

    公开(公告)日:2002-06-12

    申请号:EP01204489.7

    申请日:2001-11-23

    IPC分类号: G03C1/04 G03C1/005

    CPC分类号: G03C1/0051 G03C1/04

    摘要: A process for precipitating a high bromide silver halide emulsion in an aqueous medium is disclosed comprising growing nucleated silver halide grains in a reaction vessel in the presence of a peptizer comprising a water dispersable starch to form high bromide radiation-sensitive silver halide grains, wherein the majority of grain growth in the reaction vessel is performed at a pH of less than 3.5. Growth of high bromide silver halide emulsion grains in the presence of a starch peptizer at low pH in accordance with the invention results in emulsion grains with lower fog, even in the absence of the use of strong oxidizing agents during grain precipitation.

    Alkaline soluble mixture composed of cellulose derivatives
    76.
    发明公开
    Alkaline soluble mixture composed of cellulose derivatives 有权
    Alkali-löslicheMischung von Zellulosederivaten

    公开(公告)号:EP1024401A2

    公开(公告)日:2000-08-02

    申请号:EP00100554.5

    申请日:2000-01-12

    申请人: FERRANIA S.p.A.

    IPC分类号: G03C1/825 G03C1/04 A61K9/28

    摘要: One object of the present invention is to provide a mixture composed of 1) a cellulose ether derivative esterified at least with a biprotic acid group derivative expressed by the formula HOOC-B-COOH (I), wherein B is a linear aliphatic group represented by (CH 2 ) x with x a positive integer from 1 to 5 or is a 5-member or 6-member cycloaliphatic group and 2) a cellulose or cellulose derivative esterified at least with a phthalic acid derivative represented by the following formula (II).
    wherein R 1 is an alkyl group and y is a positive integer from 0 to 3.
    Said mixture shows an enhanced stability against hydrolysis when subjected to conditioning at high relative humidity and temperature.
    The composition may be useful in order to get antihalation layer on photographic films as well as enteric coating of pharmaceutical dosage and for controlled-release applications such as for cleaning formulation.

    摘要翻译: 本发明的一个目的是提供一种混合物,其由以下组成:1)至少与式HOOC-B-COOH(I)表示的双相酸基衍生物酯化的纤维素醚衍生物,其中B是由 (CH2)x,xa为1至5的正整数,或为5元环或6元环脂族基团,和2)至少与下式(II)表示的邻苯二甲酸衍生物酯化的纤维素或纤维素衍生物。 其中R1是烷基,y是0-3的正整数。当在高相对湿度和温度下进行调理时,所述混合物显示出增强的抗水解稳定性。 该组合物可用于在照相胶片上获得防晕层,以及药物剂量的肠溶包衣和用于例如清洁制剂的控制释放应用。

    Radiographic element having improved speed to Dmin ratio and manufacturing process thereof
    77.
    发明公开
    Radiographic element having improved speed to Dmin ratio and manufacturing process thereof 失效
    其制备的Dmin比和过程:与改进的速度的射线照相元件

    公开(公告)号:EP0965880A1

    公开(公告)日:1999-12-22

    申请号:EP98111301.2

    申请日:1998-06-19

    申请人: Imation Corp.

    IPC分类号: G03C1/04 G03C1/06

    摘要: The present invention relates to a process for manufacturing a silver halide photographic element comprising the step of adding to a silver halide emulsion (1) an aryl compound having at least two hydroxyl groups and at least one additional substituent represented by a sulfonic group, an alkali metal sulfonate group, an hydroxyl group, a carboxy group or an hydroxymethyl group and (2) a polyhydroxyalkyl derivative selected from the group consisting of non-hydrogenated polysaccharides having an average molecular weight higher than 10,000 and hydrogenated polysaccharides having an average molecular weight equal to or lower than 10,000. The use of such a combination to increase the speed to Dmin ratio of a silver halide photographic element and a silver halide element comprising such a combination is also claimed.

    摘要翻译: 本发明涉及一种用于制备卤化银照相元件,包括加入到卤化银乳剂(1)具有至少两个羟基和通过磺酸基表示的至少一个另外的取代基的芳基化合物的步骤中,对碱 具有平均分子量等于金属磺酸盐基团,羟基基团的多羟基,羧基或羟甲基和(2)的衍生物选自具有平均分子量大于10000的非氢化多糖的选择和氢化多糖 或低于10,000。 使用寻求组合提高速度以卤化银照相元件的Dmin的比率和卤化银元件,包括寻求组合的IST声称。

    A photosensitive silver halide material comprising a layer assembly
    78.
    发明公开
    A photosensitive silver halide material comprising a layer assembly 审中-公开
    光敏材料Silberhalogenidmaterial,das eine Anordnung von Schichtenenthält

    公开(公告)号:EP0911694A1

    公开(公告)日:1999-04-28

    申请号:EP98203261.7

    申请日:1998-09-28

    申请人: AGFA-GEVAERT N.V.

    IPC分类号: G03C1/76 G03C1/04

    CPC分类号: G03C1/76 G03C1/04

    摘要: A black and white silver halide photographic material is disclosed which comprises on a support in the order given:

    at least one non-light sensitive layer having a hydrophilic polymer in an total amount A between 0.1 and 0.9 g/m 2 ,
    at least one light sensitive silver halide emulsion layer having a hydrophilic polymer in an total amount B between 1 and 2 g/m 2 ,
    at least one non-light sensitive layer having a hydrophilic polymer in an total amount C between 0.5 and 1.6 g/m 2 ,
    wherein:

    0 ≤ A/B ≤ 0.6
    and
    0.7 ≤ B/C ≤ 2.25
    while the total amount of hydrophilic polymers is not more than 3 gram and the amount of silver halide less than 0,05 mole both per square meter and per side of the support.

    摘要翻译: 公开了一种黑色和白色的卤化银照相材料,其按照给定的顺序在载体上包含:至少一种具有0.1至0.9g / m 2的总量A的亲水性聚合物的非光敏层,至少 一种光敏卤化银乳剂层,其具有总计B为1至2g / m 2的亲水性聚合物,至少一种具有亲水性聚合物的至少一种非光敏层,其总量C为0.5至1.6g / m 2,其中:0≤A/B≤0.6和0.7≤B/C≤2.25,而亲水性聚合物的总量不大于3克,并且每平方厘米的卤化银量小于0.05摩尔 仪表和每侧的支撑。

    Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions
    79.
    发明公开
    Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions 审中-公开
    水溶性非交互式的聚合物和用于脱盐表面活性剂胶束和照相卤化银的浓度

    公开(公告)号:EP0899609A1

    公开(公告)日:1999-03-03

    申请号:EP98202754.2

    申请日:1998-08-17

    IPC分类号: G03C1/015 G03C1/04 G03C1/043

    摘要: A method is disclosed for washing silver halide photographic emulsions, including desalting and/or concentrating, based on depletion phase separation mechanism, wherein phase separation is effected by the addition of water-soluble non-interactive and non-adsorbing non-ionic polymers or non-ionic surfactant micelles. The process involves the separation of the supernatant fluid, containing the undesirable water-soluble salts and the added phase separating agents, from the washed and condensed silver halide phase and redispersion of the latter.

    摘要翻译: 一种方法,光盘游离缺失用于洗涤的卤化银照相乳剂,其中包括脱盐和/或浓缩,基于消耗相分离机制,worin相分离是通过加入水溶性非交互式的和非吸附的非离子聚合物或非实现 -ionic表面活性剂胶束。 该过程涉及上清液的分离,含不希望的水溶性盐和添加的相分离剂,从洗涤的和冷凝的卤化银相,后者的再分散。