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    • 72. 发明授权
    • Polymerizable esters
    • 可聚合酯
    • US4161588A
    • 1979-07-17
    • US866321
    • 1978-01-03
    • George E. GreenEwald Losert
    • George E. GreenEwald Losert
    • C07D303/02G03F7/027G03F7/038
    • C07D303/02G03F7/027G03F7/038
    • The products, which are based on polyepoxides, polymerize on exposure to actinic radiation and are useful in the preparation of printing plates for offset printing and of printed circuits, particularly multilayer circuits. They are formed by coupling two molecules of a polyepoxide by means of a dihydric phenol which contains a chalcone or chalcone-like grouping, such as 1,3-bis(p-hydroxyphenyl)prop-1-en-3-one or 1,5-bis(p-hydroxyphenyl)penta-1,4-dien-3-one, so sensitizing the material to the radiation, and then, to achieve polymerizability, ring-opening at least some of the residual epoxide groups so as to incorporate olefinic acyloxy groups (R.sup.6 CH.dbd.C(R.sup.5)COO--), such as sorboyl groups.
    • 基于聚环氧化物的产品在曝光于光化辐射下聚合,并且可用于制备用于胶版印刷和印刷电路的印刷版,特别是多层电路。 它们通过使含有查耳酮或查耳酮样基团的二元酚如1,3-双(对羟基苯基)丙-1-烯-3-酮或1, (对羟基苯基)五-1,4-二烯-3-酮,使材料对辐射敏化,然后为达到聚合性,至少部分残留的环氧基团开环,从而合并 烯属酰氧基(R6CH = C(R5)COO-),如芳酰基。