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    Asymmetric silver salt dimers and imaging compositions, materials and methods using same
    31.
    发明授权
    Asymmetric silver salt dimers and imaging compositions, materials and methods using same 失效

    公开(公告)号：US06566045B1

    公开(公告)日：2003-05-20

    申请号：US10209695

    申请日：2002-08-01

    Applicant: David R. Whitcomb

    Inventor： David R. Whitcomb

    IPC: G03C100

    CPC classification number: G03C1/49809 ,  C07F1/005

    Abstract: A non-photosensitive silver dimer compound comprises two different silver salts, provided that when the two different silver salts comprise straight-chain, saturated hydrocarbon groups as the silver coordinating ligands, those ligands differ by at least 6 carbon atoms. Many of these silver dimer compounds can be represented by the following Structure I: wherein each E is independently oxygen, sulfur, nitrogen, selenium, or tellurium, R and R′ are different alkyl groups, aryl groups, aromatic heterocyclic groups, or halo atoms, provided that when E is oxygen, R and R′ are both straight-chain, saturated hydrocarbon groups, those hydrocarbon groups differ from each other by at least 6 carbon atoms. These silver dimer compounds are useful in thermally-developable imaging materials including thermographic and photothermographic materials.

    Silver-carboxylate/1,2-diazine compounds as silver sources in photothermographic and thermographic elements
    33.
    发明授权
    Silver-carboxylate/1,2-diazine compounds as silver sources in photothermographic and thermographic elements 失效
    银 - 羧酸盐/ 1,2-二嗪化合物作为光热照相和热成像元素中的银源

    公开(公告)号：US5466804A

    公开(公告)日：1995-11-14

    申请号：US254552

    申请日：1994-06-06

    Applicant: David R. Whitcomb ,  William C. Frank

    Inventor： David R. Whitcomb ,  William C. Frank

    IPC: C07F1/00 ,  C07F1/10 ,  G03C1/498

    CPC classification number: G03C1/4989 ,  C07F1/005 ,  G03C1/49809

    Abstract: Novel silver-carboxylate/1,2-diazine compounds having the formula: ##STR1## wherein: R.sup.1 represents either an alkyl, aralkyl, cycloalkyl, or alkenyl group of up to 29 carbon atoms; or an aryl group of up to 14 carbon atoms; andand R.sup.2 represents either hydrogen, an alkyl group, a cycloalkyl group fused to the 1,2-diazine ring, or the atoms necessary to complete a 5- or 6-membered aromatic ring fused to the 1,2-diazine ring.The novel silver-carboxylate/1,2-diazine compounds are coordination compounds of two silver-carboxylate molecules and two molecules comprising a 1,2-diazine nucleus. These compounds can serve as the silver source in a black-and-white thermographic or photothermographic element or as the oxidizing agent for a dye-based thermographic or photothermographic color-imaging construction.

    Abstract translation: 具有下式的新型羧酸银/ 1,2-二嗪化合物：其中：R1代表具有至多29个碳原子的烷基，芳烷基，环烷基或链烯基; 或至多14个碳原子的芳基; R2表示与1,2-二嗪环稠合的氢，烷基，环烷基或完全与1,2-二嗪环稠合的5元或6元芳环所必需的原子。 新型羧酸银/ 1,2-二嗪化合物是两个银 - 羧酸盐分子和包含1,2-二嗪核的两个分子的配位化合物。 这些化合物可以作为黑白色热成像或光热敏成像元件中的银源或用作染料基热成像或光热成像彩色成像结构的氧化剂。

    Colorless ferric alkylphosphates
    35.
    发明授权
    Colorless ferric alkylphosphates 失效
    无色磷酸三烷基磷酸盐

    公开(公告)号：US5047566A

    公开(公告)日：1991-09-10

    申请号：US73890

    申请日：1987-07-07

    Applicant: David R. Whitcomb

    Inventor： David R. Whitcomb

    IPC: B41M5/32 ,  C07F9/11

    CPC classification number: B41M5/32 ,  C07F9/11

    Abstract: There is disclosed novel colorless ferric di-alkylphosphates of the general formulaFe[OOP(OR).sub.2 ].sub.3.XorFe[OOP(OR).sub.2 ].sub.3in which each R is independently a branched chain alkyl group and X is an anion selected from F.sup.-, PF.sub.6.sup.-, BF.sub.4.sup.-, Ph.sub.4 B.sup.-, CH.sub.3 COO.sup.-, C.sub.2 H.sub.5 COO.sup.-, C.sub.14 H.sub.29 SO.sub.4.sup.-. These compounds react with chelates to give intense and dark colored results and find utility in thermographic materials.

    Abstract translation: 公开了通式为Fe [OOP（OR）2] 3.X或Fe [OOP（OR）2] 3的新型无色二烷基磷酸酯，其中每个R独立地为支链烷基，X为阴离子 选自F-，PF6-，BF4-，Ph4B-，CH3COO-，C2H5COO-，C14H29SO4-。 这些化合物与螯合物反应，产生强烈和深色的结果，可用于热成像材料。

    Positive-acting thermographic materials
    37.
    发明授权
    Positive-acting thermographic materials 失效
    正效热成像材料

    公开(公告)号：US4829046A

    公开(公告)日：1989-05-09

    申请号：US108800

    申请日：1987-10-15

    Applicant: David R. Whitcomb

    Inventor： David R. Whitcomb

    IPC: B41M5/32

    CPC classification number: B41M5/32 ,  Y10S428/913

    Abstract: A positive-acting thermographic material which is black or dark colored in the unexposed condition turns white or light colored when exposed to elevated temperatures. The material comprises a binder, a dark colored complex of ferric iron with a ligand chosen from organothiophosphorus acids, and a white organophosphorus acid or its alkali or alkaline earth metal salt. At elevated temperatures a double decomposition reaction occurs giving the light colored complex of ferric iron with the organophosphorus acid.

    Abstract translation: 在未暴露的状态下呈黑色或深色的正性温度记录材料在暴露于升高的温度时变为白色或浅色。 该材料包括粘合剂，三价铁与选自有机硫代磷酸的配体的深色络合物，以及白色有机磷酸或其碱金属或碱土金属盐。 在升高的温度下，发生双重分解反应，得到三价铁与有机磷酸的浅色络合物。

    Thermal imaging material
    38.
    发明授权
    Thermal imaging material 失效
    热成像材料

    公开(公告)号：US4808565A

    公开(公告)日：1989-02-28

    申请号：US73889

    申请日：1987-07-07

    Applicant: David R. Whitcomb ,  Jon A. Bjork

    Inventor： David R. Whitcomb ,  Jon A. Bjork

    IPC: B41M5/32 ,  B41M5/18

    CPC classification number: B41M5/3335 ,  B41M5/32 ,  B41M5/3372 ,  B41M5/3377 ,  Y10S428/913 ,  Y10S428/914

    Abstract: Thermographic materials are colorless when unexposed, but provide an intense dark image when thermally addressed. The materials comprise white ferric organophosphate, ferric organophosphinate, or ferric organophosphonate in a clear binder with a colorless catechol or polycatechol held in said binder in solid solution. The choice of substituents on the catechol nucleus can give a change in the color of the thermal image together and provide good near infrared absorption. Use of mixed catechols can give achromatic black images. These combinations of materials show high stability at ambient temperatures.

    Abstract translation: 当未曝光时，热成像材料为无色，但在热处理时可提供强烈的暗影像。 该材料包括白色有机磷酸铁，有机磷酸铁或铁有机膦酸盐，在透明粘合剂中与固体溶液中保持在所述粘合剂中的无色儿茶酚或聚邻苯二酚。 邻苯二酚核上的取代基的选择可以使热图像的颜色变化一起并且提供良好的近红外吸收。 使用混合儿茶酚可以提供无色黑色图像。 这些材料组合在环境温度下显示出高稳定性。

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