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1. 发明授权

US4923792A 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
申请人： Duncan M. A. Grieve , Stephen S. C. Poon , Tran V. Thien , Kumars Sakizadeh , David C. Weigel
发明人： Duncan M. A. Grieve , Stephen S. C. Poon , Tran V. Thien , Kumars Sakizadeh , David C. Weigel
IPC分类号： C09B23/04 , G03C1/498
CPC分类号： G03C1/49854 , C09B23/04
摘要： 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.

2. 发明授权

US4883747A Color photothermographic elements 失效
标题翻译：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
申请人： Duncan M. A. Grieve , Stephen S. C. Poon , Tran V. Thien , Kumars Sakizadeh , David C. Weigel
发明人： Duncan M. A. Grieve , Stephen S. C. Poon , Tran V. Thien , Kumars Sakizadeh , David C. Weigel
IPC分类号： C09B23/04 , G03C1/498
CPC分类号： C09B23/04 , G03C1/49854
摘要： 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.

3. 发明授权

US5246909A Dye transfer media 失效
标题翻译： DYE转移媒体
公开(公告)号：US5246909A
公开(公告)日：1993-09-21
申请号：US809795
申请日：1991-12-18
申请人： Tran V. Thien , Ranjan C. Patel
发明人： Tran V. Thien , Ranjan C. Patel
IPC分类号： B41M5/41 , B41M5/44
CPC分类号： B41M5/44 , B41M5/41 , Y10S428/913 , Y10S428/914 , Y10S430/146 , Y10T428/31725 , Y10T428/31768 , Y10T428/31855 , Y10T428/31928 , Y10T428/31971
摘要： A dye-transfer-sheet in the form of a self supporting film having a total thickness of from 4 to 15 .mu.m and consisting of a layer of one or more thermally mobile sublimation dyes dissolved or dispersed in a polymeric binder and a hydrophilic barrier layer adjacent to, but distinct from the dye-containing layer comprising a polymeric binder substantially impermeable to migration of the sublimable dye(s).The dye-transfer-sheets have a high sensitivity due to the absence of a separate support substrate and are capable of producing clear, high density transferred images.

4. 发明授权

US5208135A Preparation and use of dyes 失效
标题翻译：染发剂的制备和使用
公开(公告)号：US5208135A
公开(公告)日：1993-05-04
申请号：US653358
申请日：1991-02-11
申请人： Ranjan C. Patel , Tran V. Thien , David Warner
发明人： Ranjan C. Patel , Tran V. Thien , David Warner
IPC分类号： C09B23/00 , C09B23/02 , C09B67/22 , C09K9/02 , G03F7/004 , G03F7/027 , G03F7/028 , G03F7/029 , G03F7/031
CPC分类号： G03F7/031 , C09B23/02 , Y10S430/115 , Y10S430/116 , Y10S430/12 , Y10S430/127 , Y10S430/145
摘要： Compounds having a utility as photosensitive dyes in photocurable polymer based imaging systems having a nucleus of general formula (I): ##STR1## wherein: n is 1 or 2,Y is selected from the group consisting of 0 and ##STR2## Z is selected from the group consisting of 0.sup..crclbar. and ##STR3## M.sup..sym. is a cation.

5. 发明授权

US5424183A Ballasted leuco dyes and photothermographic element containing same 失效
标题翻译：压实无色染料和含有其的光热敏成像元件
公开(公告)号：US5424183A
公开(公告)日：1995-06-13
申请号：US200925
申请日：1994-02-22
申请人： Takuzo Ishida , Roger A. Mader , Doreen C. Lynch , Tran V. Thien , Kenneth L. Hanzalik
发明人： Takuzo Ishida , Roger A. Mader , Doreen C. Lynch , Tran V. Thien , Kenneth L. Hanzalik
IPC分类号： G03C8/40 , G03C1/494 , G03C1/498 , G03C8/14
CPC分类号： G03C8/4033
摘要： Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising:(a) a photosensitive silver halide,(b) an organic silver compound,(c) a reducing agent for silver ion, and(d) a binder,The reducing agent comprises a ballasted leuco dye compound. The ballasted leuco dye compound comprises a compound of the general formula:D--BwhereinD represents the reduced chromophore of a thermally mobile dye; andB represents an organic group that reduces the thermal mobility of D in the aforementioned binder, said organic group B capable of being oxidatively cleaved. The molecular weight of B must not be so high that the resulting amount of D in the emulsion layer is insufficient to yield a dye image having a reflection optical density of at least 0.3 or a transmission optical density of at least 0.2. Advantages of the heat-developable photothermographic materials of this invention include the following:(1) capability of providing of pure, clear, and stable positive dye images at high photographic speed;(2) low silver requirement; and(3) reduced background stain.
摘要翻译：能够提供稳定的高分辨率彩色图像的可热成像光热敏成像材料。这些材料包括承载成像组合物层的载体，其包含：（a）感光卤化银，（b）有机银化合物，（c）银离子还原剂和（d）粘合剂。还原剂包括压载的无色染料化合物。镇静无色染料化合物包含通式为D-B的化合物，其中D表示热移动染料的还原生色团; 并且B表示降低上述粘合剂中D的热迁移率的有机基团，所述有机基团B能够被氧化裂解。 B的分子量不能太高，乳液层中D的产生量不足以产生具有至少为0.3的反射光密度或至少为0.2的透射光密度的染料图像。本发明的热显影光热成像材料的优点包括：（1）以高照相速度提供纯净，清晰和稳定的正染料影像的能力; （2）低银需求; 和（3）减少背景污点。

6. 发明授权

US5360694A Thermal dye transfer 失效
标题翻译：热染料转移
公开(公告)号：US5360694A
公开(公告)日：1994-11-01
申请号：US138591
申请日：1993-10-18
申请人： Tran V. Thien , Ranjan C. Patel
发明人： Tran V. Thien , Ranjan C. Patel
IPC分类号： B41M5/392 , B41M5/46 , C09B57/00 , G03C3/00 , B41M5/035
CPC分类号： B41M5/465 , C09B57/007 , B41M5/392 , Y10S430/146
摘要： A method of forming an image in which a color donor element and a receiving element are placed in face-to-face contact and opposed imagewise to infrared radiation, e.g. by laser exposure, in which at least one of the donor and receptor elements comprises a near-infrared absorbing dye which is a squarilium dye having dihydroperimidine terminal groups.
摘要翻译：一种形成图像的方法，其中色彩供体元件和接收元件以面对面的接触方式放置，并与红外辐射成像相对，例如红外辐射。通过激光曝光，其中供体和受体元件中的至少一个包含近红外吸收染料，其是具有二氢哌啶端基的方标染料。

7. 发明授权

US4710570A Azine redox dyes and leuco azine dyes 失效
标题翻译： Azine氧化还原染料和无色吖嗪染料
公开(公告)号：US4710570A
公开(公告)日：1987-12-01
申请号：US781913
申请日：1985-09-30
申请人： Tran V. Thien
发明人： Tran V. Thien
IPC分类号： B41M5/136 , B41M5/323 , C07D241/46 , C07D265/36 , C07D279/20 , C07D413/04 , C07D417/12 , C07D513/04 , C09B17/00 , C09B17/02 , C09B19/00 , C09B21/00 , G03C1/498 , C07D265/38
CPC分类号： G03C1/49854 , B41M5/136 , B41M5/323 , C07D241/46 , C07D265/36 , C07D279/20 , C07D413/04 , C07D417/12 , C07D513/04 , C09B17/02 , C09B19/00 , C09B21/00
摘要： Azine redox dyes and their corresponding dyes of the formula: ##STR1## in which: X is O, S, NR.sup.2,Z completes a fused aromatic of heterocyclic ring system,n is 0 or 1 to allow one R.sup.1 ring substituent,Q represents CR.sup.4 R.sup.5 in which at least one of R.sup.4 and R.sup.5 is an electronegative group or R.sup.4 and R.sup.5 may complete a ring, orwhen X is S Q may represent NR.sup.3 in which R.sup.3 is an aromatic or heterocyclic group.The leuco dyes are useful as dye generators in pressure sensitive, thermographic or photothermographic imaging systems.
摘要翻译： Azine氧化还原染料及其相应的具有下式的染料：其中：X为O，S，NR 2，Z，完成杂环系统的稠合芳族化合物，n为0或1，以允许一个R 1 Q表示CR4R5，其中R4和R5中的至少一个是电负性基团，或者R4和R5可以完成环，或者当X是SQ时可以表示NR 3，其中R 3是芳族或杂环基。无色染料可用作压敏，热成像或光热成像系统中的染料发生器。

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