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    • 2. 发明公开
    • PHOTOSENSITIVE RESIN COMPOSITION AND FLEXOGRAPHIC RESIN PLATE
    • FOTOEMPFINDLICHE ZUSAMMENSETZUNGEN UND FLEXODRUCKPLATTE
    • EP0950923A1
    • 1999-10-20
    • EP98951683.6
    • 1998-11-04
    • TOKYO OHKA KOGYO CO., LTD.Nippon Shokubai Co., Ltd.
    • TAKAGI, ToshiyaAOYAMA, ToshimiKAHARA, KojiKOBAYASHI, NobuhiroYOSHIDA, Masatoshi
    • G03F7/027G03F7/00C08G18/67
    • C08G18/4018C08G18/67C08G18/672C08G18/8175G03F7/035G03F7/0388
    • The present invention provides a photosensitive resin composition which comprises an urethane resin obtained by reacting (A) a carboxyl group-containing polymer having an acid value of 30 mg KOH/g or more and a glass transition temperature of 30°C or more, (B) a compound having two isocyanate groups in one molecule, (C) a compound having two hydroxyl groups in one molecule and (D) a photopolymerizable unsaturated monomer having one hydroxyl group in one molecule, and a photopolymerization initiator, and a resin plate for flexography using the photosensitive resin composition, whereby the photosensitive resin composition having water developing properties, high in sensitivity and impact resilience, and excellent in water resistance, ink resistance and press life of a hardened portion forming a line pattern area of a printing plate material and the resin plate for flexography prepared by the use of the photosensitive resin composition can be provided.
    • 本发明提供一种感光性树脂组合物,其包含通过使(A)含有酸值为30mg KOH / g以上且含有30℃以上的玻璃化转变温度的含羧基聚合物与(A) B)在一个分子中具有两个异氰酸酯基的化合物,(C)在一个分子中具有两个羟基的化合物和(D)在一个分子中具有一个羟基的光聚合性不饱和单体和光聚合引发剂,以及用于 使用感光性树脂组合物的柔性印刷版,由此具有水显影性,高灵敏度和回弹性的感光性树脂组合物,形成印版材料的线图案区域的硬化部分的耐水性,耐油墨性和印刷寿命优异, 可以提供通过使用感光性树脂组合物制备的用于柔性版印刷用树脂板。