Photopolymerizable recording material
    2.
    发明授权
    Photopolymerizable recording material 失效
    可光聚合记录材料

    公开(公告)号:US5922508A

    公开(公告)日:1999-07-13

    申请号:US977618

    申请日:1997-11-25

    CPC分类号: G03F7/027 G03F7/091 G03F7/092

    摘要: The invention describes a photopolymerizable recording material which comprises a photopolymerizable layer and a cover layer. The cover layer comprises a polymer which possesses low permeability to atmospheric oxygen and is soluble in water, and a water-soluble dye which absorbs light in the region from 300 to 700 nm and within this range has a non-absorbent region corresponding to the emission range of the copying light source.The material can be sensitized for various spectral regions, for example, for UV light, visible light or laser light and has a higher resolving power than a corresponding material which does not contain a dye in the cover layer, while its photosensitivity remains unchanged or is only slightly reduced.

    摘要翻译: 本发明描述了一种可光聚合记录材料,其包括可光聚合层和覆盖层。 覆盖层包括对大气中的氧气具有低渗透性并且可溶于水的聚合物,并且在300-700nm范围内吸收光的水溶性染料具有对应于发射的非吸收区域 复印光源的范围。 该材料可以对于各种光谱区域敏感,例如对于UV光,可见光或激光,并且具有比在覆盖层中不含染料的相应材料更高的分辨能力,而其光敏性保持不变或是 只有轻微的减少。

    Photopolymerizable mixture, and a recording material produced therefrom
    5.
    发明授权
    Photopolymerizable mixture, and a recording material produced therefrom 失效
    光聚合性混合物及其制备的记录材料

    公开(公告)号:US5085974A

    公开(公告)日:1992-02-04

    申请号:US174426

    申请日:1988-03-28

    摘要: A photopolymerizable mixture is disclosed which comprisesa) a polymeric binder,b) an acrylate or alkacrylate of a polyhydric alcohol containing one or more groups which are photooxidizable on exposure in the presence of the photoreducible dye, and one or more urethane groups,c) a photoreducible dye as photoinitiator.The mixture is suitable for the production of printing plates and photoresists and is distinguished by increased photosensitivity, which can be even further increased by the addition of a photolytically cleavable compound which contains at least one trihalomethyl group. A recording material comprising the photopolymerizable mixture is also disclosed.

    摘要翻译: 公开了一种可光聚合的混合物,其包含a)聚合物粘合剂,b)含有一个或多个在可光还原染料存在下可曝光的可氧化的基团的多元醇的丙烯酸酯或烷基丙烯酸酯,以及一种或多种氨基甲酸酯基团,c) 作为光致引发剂的光还原染料。 该混合物适用于印刷版和光致抗蚀剂的生产,其特征在于增加光敏性,通过加入含有至少一个三卤代甲基的可光解裂解的化合物,可以进一步提高。 还公开了包含可光聚合混合物的记录材料。

    Photopolymerizable composition comprising (meth)acrylates with
photooxidizable groups and a recording material produced therefrom
    6.
    发明授权
    Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups and a recording material produced therefrom 失效
    包含(甲基)丙烯酸酯和可光氧化基团的光聚合组合物和由其制备的记录材料

    公开(公告)号:US5043249A

    公开(公告)日:1991-08-27

    申请号:US287278

    申请日:1988-12-21

    CPC分类号: G03F7/0295 Y10S430/116

    摘要: A photopolymerizable mixture is described comprising (a) a polymeric binder, (b) an acrylate or alkacrylate of a polyhydric alcohol, said compound being free of urethane groups and further comprising at least one group which is photooxidizable on exposure to actinic radiation in the presence of a photoreducible dye, (c) a photoinitiator comprising a photoreducible dye, (d) a second photoinitiator comprising a trihalomethyl compound capable of being cleaved by irradiation, and (e) a third photoinitiator comprising an acridine, phenazine or quinoxaline compound. The mixture is suitable for the production of printing plates and photoresists and displays increased photosensitivity.

    摘要翻译: 描述了可光聚合的混合物,其包含(a)聚合物粘合剂,(b)多元醇的丙烯酸酯或丙烯酸烷基酯,所述化合物不含氨基甲酸酯基团,并且还包含至少一个在存在光化辐射的情况下可光氧化的基团 的光还原性染料,(c)包含光还原性染料的光引发剂,(d)包含能够通过照射被切割的三卤甲基化合物的第二光引发剂,和(e)包含吖啶,吩嗪或喹喔啉化合物的第三光引发剂。 该混合物适用于生产印版和光致抗蚀剂并显示增加的光敏性。

    Process for the electrochemical roughening of aluminum for use as
printing plate supports, in an aqueous mixed electrolyte
    7.
    发明授权
    Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte 失效
    在水性混合电解质中电化学粗化铝作为印版支撑体的方法

    公开(公告)号:US4618405A

    公开(公告)日:1986-10-21

    申请号:US726244

    申请日:1985-04-23

    IPC分类号: B41N3/00 B41N3/03 C25F3/04

    CPC分类号: B41N3/034 C25F3/04

    摘要: Disclosed is a process for electrochemically roughening aluminum or aluminum alloys for use as printing plate supports, in an aqueous mixed electrolyte solution containing hydrochloric acid (HCl) and, as an additional inorganic electrolyte, at least one compound selected from the group consisting of condensed phosphoric acids, amidosulfonic acid, and the water-soluble alkali metal salts and ammonium salts thereof. In particular, the solution contains from 0.5 to 10% by weight of HCl and from 0.05 to 5.0% by weight of the additional inorganic electrolyte (for example, diphosphoric acid or polyphosphoric acid). The support materials which are particularly uniformly roughened are employed in the production of offset-printing plates.

    摘要翻译: 公开了一种在含有盐酸(HCl)的含水混合电解质溶液中作为印版支持体的电化学粗化铝或铝合金的方法,以及作为另外的无机电解质的至少一种选自缩合磷酸盐 酸,酰胺磺酸及其水溶性碱金属盐和铵盐。 特别地,该溶液含有0.5-10重量%的HCl和0.05-5.0重量%的另外的无机电解质(例如二磷酸或多磷酸)。 特别均匀地粗糙化的支撑材料用于胶版印刷版的生产。

    Process for electrochemically modifying electrochemically roughened
aluminum support materials and the use of these materials in the
manufacture of offset printing plates
    8.
    发明授权
    Process for electrochemically modifying electrochemically roughened aluminum support materials and the use of these materials in the manufacture of offset printing plates 失效
    用于电化学修饰电化学粗糙化的铝支撑材料的方法以及这些材料在胶版印刷版的制造中的应用

    公开(公告)号:US4482444A

    公开(公告)日:1984-11-13

    申请号:US504874

    申请日:1983-06-16

    CPC分类号: C25F3/04 B41N3/034 Y10S204/08

    摘要: This invention pertains to a process for electrochemically modifying electrochemically roughened aluminum or aluminum alloy-based support materials for printing plates. An aluminum or aluminum alloy-based support material is electrochemically roughened using alternating current in an electrolyte containing at least one from the group consisting of hydrochloric acid and nitric acid. Subsequently, at least one surface of the material is treated in an aqueous electrolyte, with the roughened material being made the cathode. The cathodic treatment results in removal of material from the surface in the order of from 0.1 to 10 g/m.sup.2, and is carried out in an aqueous electrolyte which has a pH value in the range from 3 to 11 and includes at least one water-soluble salt in a concentration ranging from 5 g/l up to the saturation limit thereof. The cathodic treatment is appropriately conducted using direct current at a current density from 3 to 100 A/dm.sup.2, at a temperature from 15.degree. to 90.degree. C., and for a duration from 5 to 90 seconds. The removal of material is optionally followed by an anodic oxidation of the support material and a hydrophilizing post-treatment of the oxide layer.Support materials which have been prepared in this manner are used in the manufacture of offset printing plates carrying a radiation-sensitive coating.

    摘要翻译: 本发明涉及一种用于电化学改性印刷板的电化学粗糙化的铝或铝合金基载体材料的方法。 在含有至少一种由盐酸和硝酸组成的组的电解质中,使用交流电在电化学上粗糙化铝或铝合金基载体材料。 随后,材料的至少一个表面在含水电解质中被处理,粗化材料被制成阴极。 阴极处理导致从表面去除材料的量为0.1〜10g / m 2,并且在pH值为3〜11的水性电解质中进行,并且包含至少一种水溶性聚合物, 浓度范围为5g / l至其饱和极限的可溶性盐。 阴极处理使用直流电流以3〜100A / dm 2的电流密度,15〜90℃的温度适当进行5〜90秒。 材料的去除任选地随后是载体材料的阳极氧化和氧化物层的亲水后处理。 以这种方式制备的支撑材料用于制造携带辐射敏感涂层的胶版印刷版。

    Radiation-sensitive positive working composition and copying material
    9.
    发明授权
    Radiation-sensitive positive working composition and copying material 失效
    辐射敏感积极的工作组合物和复制材料

    公开(公告)号:US5068163A

    公开(公告)日:1991-11-26

    申请号:US362688

    申请日:1989-06-07

    CPC分类号: G03F7/0233 G03F7/0045

    摘要: The invention relates to a positive-working radiation-sensitive mixture and a copying material produced therefrom on a layer support. The mixture contains as essential constituents a 1,2-quinone diazide or a combination of:1) a compound forming strong acid when exposed to actinic radiation and2) a compound containing at least one acid-cleavable C--O--C bond,and a binder with repeating units of the general formula I ##STR1## wherein R.sub.1 denotes a hydrogen or halogen atom, or a cyanide or an alkyl group,R.sub.2, R.sub.3, R.sub.4 are identical or different and denote hydrogen, or alkyl or aryl groups,R.sub.5, R.sub.6 and optionally R.sub.7 are identical or different and denote hydrogen or halogen atoms, or alkyl, aryl or alkoxy groups, andX denotes the atoms necessary to complete a mononuclear or polynuclear carbocyclic aromatic ring system, andn is 1, 2 or 3.The mixture according to the invention yields lithographic printing plates with a high print run which can be thermally post-cured and have good resistance to chemicals, also photoresists with high heat resistance.

    摘要翻译: 本发明涉及一种正性辐射敏感混合物及其在层载体上由其制备的复印材料。 该混合物含有作为必要成分的1,2-醌二叠氮化物或其组合:1)当暴露于光化辐射时形成强酸的化合物和2)含有至少一个可酸切割的COC键的化合物和具有重复的粘合剂 其中R 1表示氢或卤素原子,或氰化物或烷基,R 2,R 3,R 4相同或不同,表示氢或烷基或芳基,R 5,R 6和 任选的R 7相同或不同,表示氢或卤素原子,或烷基,芳基或烷氧基,X表示完成单核或多核碳环芳环体系所必需的原子,n为1,2或3。 本发明产生具有高印刷速度的平版印刷版,其可以热后固化并且具有良好的耐化学品性,以及具有高耐热性的光致抗蚀剂。

    Photopolymerizable composition comprising (meth)acrylates with
photooxidizable groups, and a recording material produced therefrom
    10.
    发明授权
    Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom 失效
    包含(甲基)丙烯酸酯和可光氧化基团的光聚合组合物和由其制备的记录材料

    公开(公告)号:US4987055A

    公开(公告)日:1991-01-22

    申请号:US287276

    申请日:1988-12-21

    摘要: A photopolymerizable mixture is described comprising (a) a polymeric binder, (b) an acrylate or alkacrylate of a polyhydric alcohol, said compound comprising at least one group which is photooxidizable on exposure to actinic radiation in the presence of a photoreduciable dye, (c) a photoinitiator comprising a photoreducible benzoxanthene or benzothioxanthene dye, and (d) a second photoinitiator comprising a trihalomethyl compound capable of being cleaved by irradiation. The mixture is suitable for the production of printing plates and photoresists and displays increased photosensitivity.

    摘要翻译: 描述了一种可光聚合的混合物,其包含(a)聚合物粘合剂,(b)多元醇的丙烯酸酯或丙烯酸烷基酯,所述化合物包含至少一个在可光可染染料存在下在光化辐射下可光氧化的基团(c )包含光还原性苯并氧杂蒽或苯并噻吩染料的光引发剂,和(d)包含能够通过照射裂解的三卤代甲基化合物的第二光引发剂。 该混合物适用于生产印版和光致抗蚀剂并显示增加的光敏性。