Negative-working lithographic printing plate precursors
    6.
    发明授权
    Negative-working lithographic printing plate precursors 有权
    负性平版印刷版前体

    公开(公告)号:US09029063B2

    公开(公告)日:2015-05-12

    申请号:US13239435

    申请日:2011-09-22

    摘要: A lithographic printing plate precursor comprises an imagable layer comprising a free radically polymerizable component, an initiator composition capable of generating free radicals upon exposure to imaging infrared radiation, an infrared radiation absorbing dye comprising an infrared radiation absorbing cation and a counter anion, and a polymeric binder. The salt formed between the infrared radiation absorbing cation and a tetraphenyl borate has solubility in 2-methoxy propanol at 20° C. that is greater than or equal to 3.5 g/l. The use of these infrared radiation absorbing dyes in the imagable layers provides a reduced tendency of these dyes to crystallize in the presence of tetraaryl borate counter anions.

    摘要翻译: 平版印刷版前体包括可成像层,其包含可自由基聚合的组分,在暴露于成像红外辐射时能够产生自由基的引发剂组合物,包含红外辐射吸收阳离子和抗衡阴离子的红外辐射吸收染料,以及聚合物 粘合剂 在红外辐射吸收阳离子和四苯基硼酸盐之间形成的盐在20℃下在2-甲氧基丙醇中具有大于或等于3.5g / l的溶解度。 在可成像层中使用这些红外辐射吸收染料提供这些染料在硼酸四芳基酯阴离子存在下结晶的趋势。

    NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS
    8.
    发明申请
    NEGATIVE-WORKING LITHOGRAPHIC PRINTING PLATE PRECURSORS 有权
    负离子平版印刷机前驱板

    公开(公告)号:US20130078575A1

    公开(公告)日:2013-03-28

    申请号:US13239435

    申请日:2011-09-22

    IPC分类号: G03F7/20 G03F7/004 G03F7/032

    摘要: A lithographic printing plate precursor comprises an imageable layer comprising a free radically polymerizable component, an initiator composition capable of generating free radicals upon exposure to imaging infrared radiation, an infrared radiation absorbing dye comprising an infrared radiation absorbing cation and a counter anion, and a polymeric binder. The salt formed between the infrared radiation absorbing cation and a tetraphenyl borate has solubility in 2-methoxy propanol at 20° C. that is greater than or equal to 3.5 g/l. The use of these infrared radiation absorbing dyes in the imageable layers provides a reduced tendency of these dyes to crystallize in the presence of tetraaryl borate counter anions.

    摘要翻译: 平版印刷版前体包括可成像层,其包含可自由基聚合的组分,在暴露于成像红外辐射时能够产生自由基的引发剂组合物,包含红外辐射吸收阳离子和抗衡阴离子的红外辐射吸收染料,以及聚合物 粘合剂 在红外辐射吸收阳离子和四苯基硼酸盐之间形成的盐在20℃下在2-甲氧基丙醇中具有大于或等于3.5g / l的溶解度。 在可成像层中使用这些红外辐射吸收染料提供这些染料在硼酸四芳基酯阴离子存在下结晶的趋势。