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    Imaging medium and process for producing an image
    1.
    发明授权
    Imaging medium and process for producing an image 失效
    成像介质和制作图像的过程

    公开(公告)号：US6004719A

    公开(公告)日：1999-12-21

    申请号：US858659

    申请日：1997-05-19

    申请人： Russell A. Gaudiana ,  Robert W. Haddock ,  Serajul Haque ,  Iris B. Kliman Bloom ,  John L. Marshall ,  Socorro M. Ramos ,  Larry C. Takiff ,  Stephen J. Telfer ,  Michael A. Young

    发明人： Russell A. Gaudiana ,  Robert W. Haddock ,  Serajul Haque ,  Iris B. Kliman Bloom ,  John L. Marshall ,  Socorro M. Ramos ,  Larry C. Takiff ,  Stephen J. Telfer ,  Michael A. Young

    IPC分类号： B41M5/30 ,  G03C1/73 ,  G03F7/004 ,  G03C1/492 ,  G03C1/494 ,  G03C1/76

    CPC分类号： G03F7/0045 ,  B41M5/30 ,  G03C1/73

    摘要： A process for producing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizing dye and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizing dye has first and second forms, the first form having substantially greater substantial absorption in a first wavelength range than the second form. The superacid precursor is not capable, in the absence of the first form of the sensitizing dye, of being decomposed by radiation in the first wavelength range. The secondary acid generator is capable of thermal decomposition, catalyzed by superacid, to form a secondary acid. While at least part of the sensitizing dye is in its first form, the medium is imagewise exposed to radiation in the first wavelength range, thereby causing, in the exposed areas of the acid-generating layer, the formation of superacid. The medium is then heated to cause, in the exposed areas, thermal decomposition of the secondary acid generator, catalyzed by the superacid, and formation of the secondary acid. The components of the acid-generating and color-change layers or phases are then mixed so that the secondary acid causes a change in color of the image dye, and the sensitizing dye is converted to its second form. The acid-generating layer or phase desirably includes a cosensitizer which is a reducing agent less basic than the secondary acid generator.

    摘要翻译： 用于制备图像的方法使用包含酸产生层或包含超强酸性前体，敏化染料和次级酸产生剂的混合物的相位的成像介质和包含图像染料的变色层。 敏化染料具有第一和第二形式，第一形式在比第二形式的第一波长范围内具有显着更大的实质吸收。 在不存在第一形式的增感染料的情况下，超酸前体不能被第一波长范围内的辐射分解。 二次酸发生器能够通过超强酸催化热分解形成二次酸。 当至少部分敏化染料处于其第一种形式时，介质成像暴露于第一波长范围内的辐射，从而在酸产生层的暴露区域中形成超强酸。 然后将介质加热以在暴露的区域中引起二次酸产生剂的热分解，由超强酸催化并形成二次酸。 然后将酸产生和变色层或相的组分混合，使得次级酸引起图像染料的颜色变化，并且将敏化染料转化为其第二种形式。 酸产生层或相需要包含辅助剂，其是比次级酸发生剂更碱性的还原剂。

    Benzpyrylium squarylium and croconylium dyes, and processes for their preparation and use
    3.
    发明授权
    Benzpyrylium squarylium and croconylium dyes, and processes for their preparation and use 失效
    Benzyrylium squarylium和croconylium dye，及其制备和使用的方法

    公开(公告)号：US5627014A

    公开(公告)日：1997-05-06

    申请号：US460229

    申请日：1995-06-02

    申请人： Peter K. Chu ,  Serajul Haque ,  Anthony J. Puttick ,  Socorro M. Ramos ,  Robert P. Short ,  Stephen G. Stroud ,  Stephen J. Telfer ,  Michael J. Zuraw

    发明人： Peter K. Chu ,  Serajul Haque ,  Anthony J. Puttick ,  Socorro M. Ramos ,  Robert P. Short ,  Stephen G. Stroud ,  Stephen J. Telfer ,  Michael J. Zuraw

    IPC分类号： B41M5/26 ,  B41M5/385 ,  B41M5/392 ,  B41M5/40 ,  B41M5/46 ,  C09B57/00 ,  C09B57/02 ,  G11B7/244 ,  G03C1/725 ,  G03C1/73 ,  G03C1/735

    CPC分类号： B41M5/465 ,  C09B57/007 ,  C09B57/02 ,  G11B7/244 ,  B41M5/26 ,  B41M5/3854 ,  B41M5/392 ,  Y10S430/145

    摘要： Dyes comprising an inner salt of a compound of the formula:Q.sup.1 =Z-Q.sup.2wherein:Q.sup.1 is a 4-(benz[b]-4H-pyrylium)methylidene, 4-(benz[b]-4H-thiopyrylium)methylidene or 4-(benz[b]-4H-selenopyrylium)methylidene grouping;Z is a 1,3-(2-hydroxy-4-oxo-2-cyclobutylidene) hydroxide or 1,3-(2-hydroxy-4,5-dioxo-2-cyclopentylidene) hydroxide ring; andQ.sup.2 is a 4-(benz[b]-4H-pyran-4-ylidene)methyl, 4-(benz[b]-4H-thiopyran-4-ylidene)methyl or 4-(benz[b]-4H-selenopyran-4-ylidene)methyl grouping;wherein at least one of the groupings Q.sup.1 and Q.sup.2 carries at its 2-position a substituent in which a non-aromatic carbon atom is bonded directly to the benzpyrylium, benzthiopyrylium or benzselenopyrylium nucleus, subject to the proviso that if this 2-substituent contains an aromatic nucleus, this aromatic nucleus is not conjugated with the benzpyrylium, benzthiopyrylium or benzselenopyrylium nucleus to which it is attached, are useful as visible and near infra-red absorbers, having high extinction coefficients and improved solubility in polymeric media.

    摘要翻译： 染料，其包含下式化合物的内盐：Q1 = Z-Q2其中：Q1是4-（苯并[b] -4H-吡喃鎓）亚甲基，4-（苯并[b] -4H-硫代吡啶鎓）亚甲基或 4-（苯并[b] -4H-硒代吡咯鎓）亚甲基; Z是1,3-（2-羟基-4-氧代-2-环亚丁基）氢氧化物或1,3-（2-羟基-4,5-二氧代-2-亚环戊基）氢氧化物环; 并且Q2是4-（苯并[b] -4H-吡喃-4-亚基）甲基，4-（苯并[b] -4H-噻喃-4-亚基）甲基或4-（苯并[b] 硒代吡喃-4-亚基）甲基; 其中分组Q1和Q2中的至少一个在其2-位上带有非芳族碳原子直接键合到苯并吡喃鎓，苯并硫代吡喃鎓或苯并硒吡喃鎓核的取代基，条件是如果该2-取代基含有 芳香核，该芳香核不与其连接的苯并吡喃鎓，苯并硫代吡喃鎓或苯并硒吡喃鎓核共轭，可用作可见光和近红外吸收剂，具有高消光系数和在聚合物介质中改善的溶解性。

    Medium and process for generating acid using sensitizing dye and supersensitizer
    5.
    发明授权
    Medium and process for generating acid using sensitizing dye and supersensitizer 失效
    使用敏化染料和超敏化剂产生酸的介质和方法

    公开(公告)号：US5919608A

    公开(公告)日：1999-07-06

    申请号：US960162

    申请日：1997-10-29

    申请人： Serajul Haque ,  John L. Marshall ,  Stephen J. Telfer

    发明人： Serajul Haque ,  John L. Marshall ,  Stephen J. Telfer

    IPC分类号： B41M5/30 ,  B41M5/337 ,  G03C1/73 ,  G03C7/46 ,  G03F7/004 ,  G03C1/725 ,  G03C1/735

    CPC分类号： B41M5/3375 ,  B41M5/30 ,  G03C1/73 ,  G03C7/46 ,  G03F7/0045

    摘要： The sensitivity to radiation of combinations of cationic electron acceptors (such as phosphonium, sulfonium, diazonium and iodonium salts) with sensitizing dyes, which sensitize these cationic electron acceptors to wavelengths (typically visible wavelengths) to which they are not sensitive in the absence of the dye, can be increased by including with the cationic electron acceptor and the sensitizing dye a supersensitizer which has an oxidation potential lower than that of the sensitizing dye, the supersensitizer being an ionic compound having a cation comprising an ionic grouping, said grouping comprising at least one atom of an element from Group VB, VIB or VIIB of the Periodic Table. An imaging medium has an acid-generating layer comprising this cationic electron acceptor/sensitizing dye/supersensitizer combination together with a secondary acid generator capable of thermal decomposition to form a secondary acid, the thermal decomposition of the secondary acid generator being catalyzed by the acid generated from the cationic electron acceptor, and a color change layer comprising an image dye which undergoes a color change in the presence of the secondary acid.

    摘要翻译： 阳离子电子受体（如鏻，锍，重氮鎓和碘鎓盐）与敏化染料的组合对辐射的敏感性，其使这些阳离子电子受体对不存在这些阳离子电子受体不敏感的波长（通常为可见波长）敏感 染料可以通过用阳离子电子受体和敏化染料包含氧化电位低于敏化染料的超敏剂来增加，超敏剂是具有包含离子性基团的阳离子的离子化合物，所述组分至少包含 来自元素周期表第VB族，VIB族或VIIB族元素的一个原子。 成像介质具有含有这种阳离子电子受体/增感染料/超敏剂的酸产生层与能够热分解形成二次酸的次级酸发生剂的组合，二次酸产生剂的热分解被产生的酸催化 以及包含在二次酸存在下经历颜色变化的图像染料的变色层。