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    Photoreaction quenchers in on-press developable lithographic printing plates
    1.
    发明授权
    Photoreaction quenchers in on-press developable lithographic printing plates 失效
    印刷可印刷平版印刷版中的光反应猝灭剂

    公开(公告)号：US5599650A

    公开(公告)日：1997-02-04

    申请号：US430359

    申请日：1995-04-28

    申请人： Daoshen Bi ,  Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel ,  Tung-Feng Yeh

    发明人： Daoshen Bi ,  Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel ,  Tung-Feng Yeh

    IPC分类号： G03F7/11 ,  G03F7/00 ,  G03F7/004 ,  G03F7/027 ,  G03F7/09 ,  G03F7/36 ,  G03C1/73

    CPC分类号： G03F7/092 ,  G03F7/027 ,  G03F7/36 ,  G03F7/002

    摘要： The present invention provides a lithographic printing plate comprising a substrate and a photocurable polymeric photoresist, such as those based on free-radical initiated photocuring mechanisms. To constrain detrimental and undesired activity of excess free radicals, an embodiment of the printing plate is further provided with a free-radical regulating system. In a particular embodiment, the free-radical regulating system is provided as an overcoat, the overcoat being a light-transmissive overcoat and comprising a polymer having a pendant free-radical trapping group. A particular polymer for the overcoat has the formula ##STR1## wherein, m is from approximately 20% by weight to approximately 95% by weight, and n is from approximately 0% by weight to approximately 75% by weight. Capable of deactivating free-radicals actinically generated in the photoresist subsequent to exposure, the polymer is soluble in fountain or ink solution and incompatible with the photoresist.

    摘要翻译： 本发明提供了一种平版印刷版，其包括基底和可光固化的聚合物光致抗蚀剂，例如基于自由基引发的光固化机理的那些。 为了约束过量自由基的有害和不期望的活性，印版的一个实施方案还具有自由基调节系统。 在一个具体实施方案中，自由基调节系统被提供为外涂层，外涂层是透光外涂层，并且包含具有侧链自由基捕获基团的聚合物。 用于外涂层的特定聚合物具有式“IMAGE”，其中m为约20重量％至约95重量％，n为约0重量％至约75重量％。 能够使曝光后光致抗蚀剂中的自由基失活，聚合物可溶于墨水或油墨溶液中，与光致抗蚀剂不相容。

    Low-volatility, substituted 2-phenyl-4,6-bis (halomethyl)-1,3,5-triazine for lithographic printing plates
    2.
    发明授权
    Low-volatility, substituted 2-phenyl-4,6-bis (halomethyl)-1,3,5-triazine for lithographic printing plates 失效
    用于平版印刷版的低挥发性取代的2-苯基-4,6-双（卤代甲基）-1,3,5-三嗪

    公开(公告)号：US5561029A

    公开(公告)日：1996-10-01

    申请号：US430461

    申请日：1995-04-28

    申请人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel ,  Donna J. Guarrera ,  John M. Hardin ,  John C. Warner

    发明人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel ,  Donna J. Guarrera ,  John M. Hardin ,  John C. Warner

    IPC分类号： C08F2/44 ,  C08F2/50 ,  G03F7/028 ,  G03F7/029 ,  G03F7/031

    CPC分类号： G03F7/0295 ,  Y10S430/12 ,  Y10S430/121 ,  Y10S430/127

    摘要： The present invention sets forth the incorporation of a substituted 2-phenyl-4,6-bis (trichloromethyl)-1,3,5-triazine in photoresists of lithographic printing plates for the purpose of promoting their shelf-life, room light stability, and developability. The present invention provides a photocurable composition comprising at least a photopolymerizable ethylenically unsaturated monomer having at least one terminal ethylenic group and capable of forming a polymer upon exposure to actinic radiation; and an s-triazine capable of initiating free radical polymerization of the photopolymerizable ethylenically unsaturated monomer and being represented by the following general formula [I]: ##STR1## wherein R.sub.1 is either OR.sub.4 or NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 may or may not be identical with each other, either R.sub.5 or R.sub.6 may represent hydrogen, and wherein R.sub.4 and at least one of R.sub.5 and R.sub.6 represent a ballast group capable of preventing the substantial volatilization of the s-triazine from the photoresist composition, the ballast group being a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, the substituted or unsubstituted alkyl group having at least 4 carbon atoms, the substituted or unsubstituted aryl group having at least 6 carbon atoms; R.sub.2 and R.sub.3 may or may not be identical with each other and each represent hydrogen, halogen, phenyl, a substituted or unsubstituted alkyl group, or an alkoxyl group; X and Y may or may not be identical with each other and each represent chlorine or bromine; and m and n may or may not be identical with each other and are each an integer of 0, 1, or 2. Desirable compositions will further comprise at least one photooxidizable leuco triarylmethane dye.

    摘要翻译： 本发明阐述了取代的2-苯基-4,6-双（三氯甲基）-1,3,5-三嗪在平版印刷版的光致抗蚀剂中的引入，以促进其保质期，室内光稳定性， 和可开发性。 本发明提供一种可光固化组合物，其包含至少一种具有至少一个末端烯属基并可在暴露于光化辐射时形成聚合物的可光聚合的烯属不饱和单体; 和能够引发可光聚合的烯键式不饱和单体的自由基聚合并由以下通式[I]表示的均三嗪：其中R 5或R 6可以彼此相同或不同，R 5或R 6可以 表示氢，并且其中R 4和R 5和R 6中的至少一个表示能够防止光刻胶组合物中s-三嗪显着挥发的压载基团，该镇流基为取代或未取代的烷基，或取代或未取代的 具有至少4个碳原子的取代或未取代的烷基，取代或未取代的具有至少6个碳原子的芳基; R 2和R 3可以彼此相同或不同，分别代表氢，卤素，苯基，取代或未取代的烷基或烷氧基; X和Y可以相同也可以不相同，分别表示氯或溴; 并且m和n可以彼此相同也可以不相同，并且各自为0,1或2的整数。期望的组合物还将包含至少一种可光氧化的无色三芳基甲烷染料。

    Synthesis of photoreactive polymeric binders
    3.
    发明授权
    Synthesis of photoreactive polymeric binders 失效

    公开(公告)号：US5514522A

    公开(公告)日：1996-05-07

    申请号：US429804

    申请日：1995-04-27

    申请人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel

    发明人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel

    IPC分类号： C08F8/00 ,  G03F7/033 ,  G03F7/038 ,  G03F7/035

    CPC分类号： G03F7/033 ,  C08F290/04 ,  C08G18/728 ,  C09J133/08 ,  G03F7/0388 ,  Y10S430/107 ,  Y10S430/111

    摘要： A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate (m-TMI) through complexation with an electron-deficient monomer such as maleic anhydride to accelerate free radical copolymerization with other monomers, and thus, provides greater monomer-to-polymer conversion. Use of the resulting product in the photoresist of a lithographic printing plate improves its adhesion to an underlying substrate.

    Synthesis of photoreactive polymeric binders
    4.
    发明授权
    Synthesis of photoreactive polymeric binders 失效
    光反应性聚合物粘合剂的合成

    公开(公告)号：US5556924A

    公开(公告)日：1996-09-17

    申请号：US602046

    申请日：1996-02-15

    申请人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel

    发明人： Maurice J. Fitzgerald ,  Frederick R. Kearney ,  Rong-Chang Liang ,  William C. Schwarzel

    IPC分类号： C08F8/00 ,  G03F7/033 ,  G03F7/038 ,  C08F283/00 ,  G03F7/035

    CPC分类号： G03F7/033 ,  C08F290/04 ,  C08G18/728 ,  C09J133/08 ,  G03F7/0388 ,  Y10S430/107 ,  Y10S430/111

    摘要： A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate (m-TMI) through complexation with an electron-deficient monomer such as maleic anhydride to accelerate free radical copolymerization with other monomers, and thus, provides greater monomer-to-polymer conversion. Use of the resulting product in the photoresist of a lithographic printing plate improves its adhesion to an underlying substrate.

    摘要翻译： 可用于增强传统印版或印刷可印刷平版印刷版中的光速的光反应粘合剂。 简言之，通过使异氰酸酯基团与丙烯酸羟烷基酯反应，将异丙烯基-α，α-二甲基苄基异氰酸酯的聚合物衍生化为乙烯基反应性。 所得到的光聚合物粘合剂提供比目前用于生产常规印刷版的非反应性粘合剂显着更高的感光速度。 所得到的平版印刷版也显示出更好的耐久性（表现为更长的长度），并且由本发明中使用的微囊化显影剂更容易开发。 关于光反应性粘合剂的制备，本申请公开了通过与马来酸酐等电子缺乏单体络合而使间 - 异丙烯基-α，α-二甲基苄基异氰酸酯（m-TMI）共聚的方法，以加速与其它物质的自由基共聚 单体，从而提供更大的单体 - 聚合物转化率。 将所得产物在平版印刷版的光致抗蚀剂中的使用改善了其与下层基材的粘合性。

    Heat and radiation-sensitive imaging medium, and processes for use thereof
    5.
    发明授权
    Heat and radiation-sensitive imaging medium, and processes for use thereof 失效
    热和辐射敏感成像介质及其使用方法

    公开(公告)号：US06258505B1

    公开(公告)日：2001-07-10

    申请号：US09518045

    申请日：2000-03-02

    申请人： Jayprakash C. Bhatt ,  Daoshen Bi ,  F. Richard Cottrell ,  Rong C. Liang ,  William C. Schwarzel ,  Tung F. Yeh

    发明人： Jayprakash C. Bhatt ,  Daoshen Bi ,  F. Richard Cottrell ,  Rong C. Liang ,  William C. Schwarzel ,  Tung F. Yeh

    IPC分类号： G03F7021

    CPC分类号： B41M5/34 ,  B41M5/30

    摘要： An imaging medium comprises a substrate carrying a color-change layer. This color-change layer comprises two layers or phases comprising two color-forming reagents which react upon heating to cause a change in the color of the layer. The color-change layer is deactivated by exposure to actinic radiation such that after deactivation it no longer undergoes its thermal color-change. The color-change layer is detachable from the substrate by heating to a temperature lower than required to cause the color change, so that upon contact of the imaging medium with a receiving sheet each individual pixel of the color-change layer may be left attached to the substrate, transferred to the receiving sheet but left uncolored, or transferred to the receiving sheet and colored to a color level determined by the energy used in the associated thermal print head element. The medium may be imaged by imagewise heating, followed by blanket exposure to deactivating actinic radiation, or by imagewise exposure to the actinic radiation, followed by heating of the whole color-change layer.

    摘要翻译： 成像介质包括承载着色层的基板。 该变色层包括两层或两层，包括两种成色试剂，其在加热时反应以引起层的颜色变化。 通过暴露于光化辐射来使变色层失活，使得在去激活之后它不再经受其热变色。 变色层通过加热到低于引起颜色变化所需的温度的温度而与基板分离，使得当成像介质与接收片接触时，可以将变色层的每个像素附着到 将基底转移到接收片材上，但保持未着色，或转移到接收片材并着色至由相关热敏打印头元件中使用的能量确定的色彩水平。 介质可以通过图像加热成像，然后通过毯式曝光去活化光化辐射，或通过成像曝光于光化辐射，然后加热整个颜色变化层来成像。

    Heat and radiation-sensitive imaging medium, and processes for use thereof
    6.
    发明授权
    Heat and radiation-sensitive imaging medium, and processes for use thereof 失效
    热和辐射敏感成像介质及其使用方法

    公开(公告)号：US6054246A

    公开(公告)日：2000-04-25

    申请号：US108624

    申请日：1998-07-01

    申请人： Jayprakash C. Bhatt ,  Daoshen Bi ,  F. Richard Cottrell ,  Rong C. Liang ,  William C. Schwarzel ,  Tung F. Yeh

    发明人： Jayprakash C. Bhatt ,  Daoshen Bi ,  F. Richard Cottrell ,  Rong C. Liang ,  William C. Schwarzel ,  Tung F. Yeh

    IPC分类号： B41M5/323 ,  B41M5/30 ,  B41M5/34 ,  B41M5/382 ,  G03C5/18

    CPC分类号： B41M5/34 ,  B41M5/30

    摘要： An imaging medium comprises a substrate carrying a color-change layer. This color-change layer comprises two layers or phases comprising two color-forming reagents which react upon heating to cause a change in the color of the layer. The color-change layer is deactivated by exposure to actinic radiation such that after deactivation it no longer undergoes its thermal color-change. The color-change layer is detachable from the substrate by heating to a temperature lower than required to cause the color change, so that upon contact of the imaging medium with a receiving sheet each individual pixel of the color-change layer may be left attached to the substrate, transferred to the receiving sheet but left uncolored, or transferred to the receiving sheet and colored to a color level determined by the energy used in the associated thermal print head element. The medium may be imaged by imagewise heating, followed by blanket exposure to deactivating actinic radiation, or by imagewise exposure to the actinic radiation, followed by heating of the whole color-change layer.

    摘要翻译： 成像介质包括承载着色层的基板。 该变色层包括两层或两层，包括两种成色试剂，其在加热时反应以引起层的颜色变化。 通过暴露于光化辐射来使变色层失活，使得在去激活之后它不再经受其热变色。 变色层通过加热到低于引起颜色变化所需的温度的温度而与基板分离，使得当成像介质与接收片接触时，可以将变色层的每个像素附着到 将基底转移到接收片材上，但保持未着色，或转移到接收片材并着色至由相关热敏打印头元件中使用的能量确定的色彩水平。 介质可以通过图像加热成像，然后通过毯式曝光去活化光化辐射，或通过成像曝光于光化辐射，然后加热整个颜色变化层来成像。

    Photographic compounds
    9.
    发明授权
    Photographic compounds 失效
    摄影化合物

    公开(公告)号：US4946964A

    公开(公告)日：1990-08-07

    申请号：US131911

    申请日：1987-12-11

    申请人： Roger A. Boggs ,  John B. Mahoney ,  Avinash C. Mehta ,  William C. Schwarzel ,  Lloyd D. Taylor

    发明人： Roger A. Boggs ,  John B. Mahoney ,  Avinash C. Mehta ,  William C. Schwarzel ,  Lloyd D. Taylor

    IPC分类号： C07D257/04 ,  G03C7/305 ,  G03C8/00

    CPC分类号： C07D257/04 ,  G03C7/30511 ,  G03C8/00 ,  Y02P20/55

    摘要： There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound represented by the formula ##STR1## wherein R is --OH, --OR.sub.4, --NH.sub.2 --NHR.sub.5 or --NR.sub.4 R.sub.6 ; R.sub.1 is hydrogen, --NH.sub.2, alkyl, substituted alkyl, aryl or substituted aryl; R.sub.2 and R.sub.3 each independently is hydrogen, alkyl, aralkyl or aryl; R.sub.4 is a protecting group which can be removed in the presence of a base; R.sub.5 is an activating group which can render the neighboring hydrogen atom acidic; R.sub.6 is an electron withdrawing group which is capable of stabilizing the negative charge on the nitrogen atom which is produced upon removal of R.sub.4 upon contact with alkali; and PHOTO is a photographically useful group.The compounds provide controlled release of the photographically useful group by a base-catalyzed elimination when contacted by the aqueous alkaline processing composition.

    摘要翻译： 描述了一种摄影系统，其中用碱性照相显影组合物水溶液曝光的感光元件的显影是在下式表示的化合物的存在下进行：其中R是-OH，-OR4，-NH2-NHR5或 - NR4R6; R 1是氢，-NH 2，烷基，取代的烷基，芳基或取代的芳基; R2和R3各自独立地是氢，烷基，芳烷基或芳基; R4是可以在碱存在下除去的保护基; R5是可使相邻氢原子呈酸性的活化基团; R6是能够稳定在与碱接触时除去R4时产生的氮原子上的负电荷的吸电子基团; 而PHOTO是一个摄影有用的组。 当通过碱性水溶液处理组合物接触时，这些化合物通过碱催化消除提供对照相有用基团的控制释放。

    Photographic system utilizing a compound capable of providing controlled release of photographically useful group
    10.
    发明授权
    Photographic system utilizing a compound capable of providing controlled release of photographically useful group 失效
    利用能够提供摄影有用组的控制释放的化合物的摄影系统

    公开(公告)号：US4743533A

    公开(公告)日：1988-05-10

    申请号：US846584

    申请日：1986-03-31

    申请人： Roger A. Boggs ,  John B. Mahoney ,  Avinash C. Mehta ,  William C. Schwarzel ,  Lloyd D. Taylor

    发明人： Roger A. Boggs ,  John B. Mahoney ,  Avinash C. Mehta ,  William C. Schwarzel ,  Lloyd D. Taylor

    IPC分类号： G03C8/08 ,  C07D257/04 ,  G03C7/305 ,  G03C8/00 ,  G03C1/08 ,  G03C1/02 ,  G03C1/06 ,  G03C7/26

    CPC分类号： C07D257/04 ,  G03C7/30511 ,  G03C8/00 ,  Y02P20/55 ,  Y10S430/156 ,  Y10S430/158

    摘要： There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound represented by the formula ##STR1## wherein R is --OH, --OR.sub.4, --NH.sub.2 --NHR.sub.5 or --NR.sub.4 R.sub.6 ; R.sub.1 is hydrogen, --NH.sub.2, alkyl, substituted alkyl, aryl or substituted aryl; R.sub.2 and R.sub.3 each independently is hydrogen, alkyl, aralkyl or aryl; R.sub.4 is a protecting group which can be removed in the presence of a base; R.sub.5 is an activating group which can render the neighboring hydrogen atom acidic; R.sub.6 is an electron withdrawing group which is capable of stabilizing the negative charge on the nitrogen atom which is produced upon removal of R.sub.4 upon contact with alkali; and PHOTO is a photographically useful group.The compounds provide controlled release of the photographically useful group by a base-catalyzed elimination when contacted by the aqueous aklaline processing composition.

    摘要翻译： 描述了一种摄影系统，其中用碱性照相显影组合物水溶液曝光的感光元件的显影是在下式表示的化合物的存在下进行：其中R是-OH，-OR 4，-NH 2 -NHR 5或 - NR4R6; R 1是氢，-NH 2，烷基，取代的烷基，芳基或取代的芳基; R2和R3各自独立地是氢，烷基，芳烷基或芳基; R4是可以在碱存在下除去的保护基; R5是可使相邻氢原子呈酸性的活化基团; R6是能够稳定在与碱接触时除去R4时产生的氮原子上的负电荷的吸电子基团; 而PHOTO是一个摄影有用的组。 这些化合物通过碱性催化的消除剂在通过水性碱性处理组合物接触时提供对照相用的基团的控制释放。