Syndiotactic polybutadiene composition for photosensitive printing plate
    115.
    发明公开
    Syndiotactic polybutadiene composition for photosensitive printing plate 失效
    用于感光印刷板的聚氨酯聚丁二烯组合物

    公开(公告)号:EP0076588A3

    公开(公告)日:1983-05-25

    申请号:EP82304930

    申请日:1982-09-20

    申请人: UNIROYAL, INC.

    IPC分类号: G03C01/68

    摘要: A photopolymer elastomeric article designed to be used primarily In a flexographic printing system comprising: a polymer matrix made up of a mixture of syndiotactic 1,2-polybutadiene and cis-1,4-polyisoprene, a photoinitiator, which is a compound, which when irradiated, will initiate polymerization and/or crosslinking, and optionally 0.3 phr of photopolymerizable, ethylenically unsaturated crosslinking agent, as typified by esters of acrylic or methacrylic acid.

    Compressible photopolymer printing plate
    118.
    发明公开
    Compressible photopolymer printing plate 失效
    可压电光刻机印刷板

    公开(公告)号:EP0057593A3

    公开(公告)日:1983-01-19

    申请号:EP82300478

    申请日:1982-01-29

    申请人: UNIROYAL, INC.

    IPC分类号: G03F07/02 B41N01/12

    摘要: A layered sheet construction suitable after processing for use as a relief printing plate is provided. The sheet is made of a photosensitive layer comprising an elastomeric polymer, between 5 and 30 phr of an ethylenically unsaturated compound and between 0.1 and 5 phr of a photoinitiator activatable by actinic radiation; a base layer immediately adjacent to said photosensitive layer capable of supporting a relief image after processing; having the same or a different composition than said photosensitive layer. The sheet is bonded to an open or closed cell foam layer having a thickness between 0.25 mm and 6.35 mm. Said foam has a recovery rate of at least 80%, a compression value between 0.076 mm and 0.76 mm and a density of between 32 and 801 kg/m 3 and is bonded to a dimensionally stable supporting layer.