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    Dry silver systems with fluoran leuco dyes
    2.
    发明授权
    Dry silver systems with fluoran leuco dyes 失效
    与荧光素白蛋白染色体系统

    公开(公告)号：US5185231A

    公开(公告)日：1993-02-09

    申请号：US749573

    申请日：1991-08-26

    Applicant: David C. Weigel

    Inventor： David C. Weigel

    IPC: G03C1/498 ,  G03C8/06 ,  G03C8/40

    CPC classification number: G03C1/49854

    Abstract: Certain fluoran dyes have been found to be effective reducing agents for silver ion in dry silver constructions. The fluoran dyes have the following structure: ##STR1## wherein: R.sup.1 represents methyl or n-butyl;R.sup.2 represents n-butyl or cyclohexyl;R.sup.3 represents hydrogen, methyl, or methoxy; andR.sup.4 represents ##STR2## where X represents halogen (preferably chlorine); and a binder.

    Abstract translation: 已经发现某些荧蒽染料是干银结构中有效的银离子还原剂。 荧光染料具有以下结构：其中：R1表示甲基或正丁基; R2代表正丁基或环己基; R3表示氢，甲基或甲氧基; 并且R 4表示，其中X表示卤素（优选氯）; 和粘合剂。

    Indicator material
    3.
    发明授权
    Indicator material 失效
    指示材料

    公开(公告)号：US4328181A

    公开(公告)日：1982-05-04

    申请号：US55146

    申请日：1979-07-06

    Applicant: Leon W. Anders ,  David C. Weigel

    Inventor： Leon W. Anders ,  David C. Weigel

    IPC: G01N31/22 ,  G01N21/78

    CPC classification number: G01N31/224 ,  Y10T436/186 ,  Y10T436/19

    Abstract: Indicator material for monitoring personal exposure to hazardous substances in ambient air comprising a pigment material, a binder and a sensitizer coated upon a transparent support member as a porous coating which permits gaseous diffusion throughout the coating is disclosed. Detection or monitoring is effected when the indicator material undergoes a visually observable reaction with hazardous material in the atmosphere at room temperature.

    Abstract translation: 用于监测环境空气中的有害物质的个人暴露的指示剂材料，其包括涂覆在透明支撑构件上的颜料，粘合剂和敏化剂，作为允许气体在整个涂层中扩散的多孔涂层。 当指示剂材料在室温下与大气中的危险物质进行目视可观察的反应时，进行检测或监测。

    Laser write process for making a conductive metal circuit
    4.
    发明授权
    Laser write process for making a conductive metal circuit 失效
    用于制作导电金属电路的激光写入工艺

    公开(公告)号：US5576074A

    公开(公告)日：1996-11-19

    申请号：US518547

    申请日：1995-08-23

    Applicant: David C. Weigel ,  David A. Morgan

    Inventor： David C. Weigel ,  David A. Morgan

    IPC: G03F7/28 ,  H05K3/10 ,  B05D3/06 ,  B05D3/02

    CPC classification number: H05K3/102

    Abstract: A process is described for providing a conductive metal circuit using a coherent radiation source. The circuit pattern is directly written onto a laser addressable element having a supercooling material layer. A conductive metal toner is then applied to the light struck areas and fired in a furnace to provide a conductive metal circuit.

    Abstract translation: 描述了使用相干辐射源提供导电金属电路的过程。 将电路图案直接写入具有过冷材料层的激光可寻址元件上。 然后将导电金属调色剂施加到轻击区域并在炉中烧制以提供导电金属电路。

    Color photothermographic elements
    5.
    发明授权
    Color photothermographic elements 失效
    彩色光热敏成像元件

    公开(公告)号：US4883747A

    公开(公告)日：1989-11-28

    申请号：US200665

    申请日：1988-05-31

    Applicant: Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    Inventor： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    IPC: C09B23/04 ,  G03C1/498

    CPC classification number: C09B23/04 ,  G03C1/49854

    Abstract: A photothermographic element comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leuco compound which is oxidisable by silver ions into a colored dye of the general formula: ##STR1## in which: n=0, 1 or 2,R.sup.1 represents H, CN, lower alkyl of 1 to 5 carbon atoms, aryl or COOR.sup.6 in which R.sup.6 is lower alkyl of 1 to 5 carbon atoms or aryl,R.sup.2 and R.sup.3 independently represent CN, NO.sub.2, COOR.sup.6, SO.sub.2 R.sup.6, CONHR.sup.6 in which R.sup.6 is as defined above or R.sup.2 and R.sup.3 together represent the necessary atoms to form a 5- or 6-membered carbocyclic or heterocyclic ring having ring atoms selected from C, N, O and S atoms, which carbocyclic or heterocyclic rings possess at least one conjugated electron withdrawing substituent,R.sup.4 and R.sup.5 independently represent H, CN or lower alkyl of 1 to 5 carbon atoms or together represent the necessary atoms to complete a 5- or 6-membered carbocyclic ring, andAr represents:(a) a thienyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms,(b) a furyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms or(c) a phenyl group which may be substituted with one or more groups selected from halogen, hydroxy, lower alkyl of 1 to 5 carbon atoms, lower alkoxy of 1 to 5 carbon atoms, NR.sup.7 R.sup.8 in which R.sup.7 and R.sup.8 are independently selected from H, lower alkyl group of 1 to 5 carbon atoms which may possess substituents selected form CN, OH, halogen and phenyl, and phenyl group optionally substituted with substituents selected from OH, halogen, lower alkyl of 1 to 5 carbon atoms or lower alkoxy of 1 to 5 carbon atoms or R.sup.7 and R.sup.8 together represent the necessary atoms to complete a morpholino group, or said phenyl group may be part of a larger ring structure comprising two or more rings which may be aromatic or heterocyclic containing up to 20 ring atoms selected from C, N, O and S.

    Thermal development accelerators for thermographic materials
    6.
    发明授权
    Thermal development accelerators for thermographic materials 失效
    热成像材料的热开发加速器

    公开(公告)号：US5275932A

    公开(公告)日：1994-01-04

    申请号：US918555

    申请日：1992-07-22

    Applicant: David C. Weigel ,  Oanh V. Pham

    Inventor： David C. Weigel ,  Oanh V. Pham

    IPC: G03C1/498 ,  G03C8/40 ,  G03C1/494

    CPC classification number: G03C1/49845 ,  G03C1/49872 ,  G03C1/4989 ,  Y10S430/165

    Abstract: Thermal recording material containing a suitable substrate coated with an image forming layer. The image forming layer contains a thermally reducible source of silver, a 3-indazolinone or urea compound; a polymeric binder; and optionally, an auxiliary reducing agent and toner. Preferably, an anti-stick layer is coated on top of the imaging layer.The 3-indazolinone and urea compounds have been found to enhance the thermal image forming capability of thermal recording material.

    Abstract translation: 含有涂覆有图像形成层的合适基底的热敏记录材料。 成像层含有可热还原的银源，3-吲唑啉酮或脲化合物; 聚合物粘合剂; 和任选的辅助还原剂和调色剂。 优选地，在成像层的顶部涂覆防粘层。 已经发现3-吲唑啉酮和脲化合物增强了热敏记录材料的热成像能力。

    Color photothermographic elements
    7.
    发明授权
    Color photothermographic elements 失效

    公开(公告)号：US4923792A

    公开(公告)日：1990-05-08

    申请号：US368566

    申请日：1989-06-20

    Applicant: Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    Inventor： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    IPC: C09B23/04 ,  G03C1/498

    CPC classification number: G03C1/49854 ,  C09B23/04

    Abstract: A photothermographic element comprising:(A) a coating comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leuco compound which is oxidizable by silver ions into a colored dye of the general formula: ##STR1## in which: n=0, 1 or 2,R.sup.1 represents H, CN, lower alkyl of 1 to 5 carbon atoms, aryl or COOR.sup.6 in which R.sup.6 is lower alkyl of 1 to 5 carbon atoms or aryl,R.sup.2 and R.sup.3 independently represent CN, NO.sub.2, COOR.sup.6, SO.sub.2 R.sup.6, CONHR.sup.6 in which R.sup.6 is as defined above or R.sup.2 and R.sup.3 together represent the necessary atoms to form a 5- or 6-membered carbocyclic or heterocyclic ring having ring atoms selected from C, N, O and S atoms, whch carbocyclic or heterocyclic rings possess at least one conjugated electron withdrawing substituent,R.sup.4 and R.sup.5 independently represent H, CN or lower alkyl of 1 to 5 carbon atoms or together represent the necessary atoms to complete a 5- or 6-membered carbocyclic ring, andAr represents:(a) a thienyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms,(b) a furyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms or(c) a phenyl group which may be substituted with one or more groups selected from halogen, hydroxy, lower alkyl of 1 to 5 carbon atoms, lower alkoxy of 1 to 5 carbon atoms, NR.sup.7 R.sup.8 in which R.sup.7 and R.sup.8 are independently selected from H, lower alkyl group of 1 to 5 carbon atoms which may possess substituents selected form CN, OH, halogen and phenyl, and phenyl group optionally substituted with substituents selected from OH, halogen, lower alkyl of 1 to 5 carbon atoms or lower alkoxy of 1 to 5 carbon atoms or R.sup.7 and R.sup.8 together represent the necessary atoms to complete a morpholino group, or said phenyl group may be part of a larger ring structure comprising two or more rings which may be aromatic or heterocyclic containing up to 20 ring atoms selected from C, N, O and S; and(B) a topcoat comprising a polyvinyl alcohol resin in contact with said coating.

    Positive imaging diffusion-transfer dry silver system using formazan dye
    8.
    发明授权
    Positive imaging diffusion-transfer dry silver system using formazan dye 失效
    使用甲an染料的正成像扩散转移干银系统

    公开(公告)号：US5278024A

    公开(公告)日：1994-01-11

    申请号：US998445

    申请日：1992-12-30

    Applicant: Richard C. Cotner ,  David C. Weigel ,  Kumars Sakizadeh

    Inventor： Richard C. Cotner ,  David C. Weigel ,  Kumars Sakizadeh

    IPC: G03C1/498 ,  G03C8/40 ,  G03C5/54

    CPC classification number: G03C1/49854 ,  G03C8/4033 ,  G03C8/4066

    Abstract: A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.

    Abstract translation: 一种用于无溶剂染料热阳性成像扩散转移方法的光热复合结构，包括：（a）图像接收元件，其包含玻璃化转变温度在20度至200度范围内的聚合物可染色图像接收层 以及（b）可剥离地粘附到所述图像接收元件，可成像的光热敏成像元件在其至少一个层中包含粘合剂，银源材料，催化接近所述银源材料的感光卤化银，以及 甲an染料

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