• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to photographic materials, in particular a photopolymerizable composition for the preparation of printed circuit boards. The purpose of the invention is to increase the sensitivity of the coating. The composition contains, in parts by weight: an ethylenically unsaturated compound or a mixture of such compounds 100 (* 98N 6 -isopropylbenzene) - (* 98N 5 -cyclopentadienyl) iron (2 +) - hexafluorophosphate (A) 0.2-3 the initiator is 0.5-2, the ratio of the latter to A being from 1: 3 to 2.5: 1. 2,2-Dimethoxy-, or 2,2-diethoxy-1,2-diphenylethanone-1 is used as an initiator. or 2,2-dimethyl-2-hydroxyacetophenone, or 1-hydroxycyclohexyl-phenyl-ketone. In this case, the relative sensitivity of the composition is increased compared with the known (initiator tert-butyl hydroperoxide) from 0.5-2 to 27 (according to the maximum number of steps of the step wedge under which the polymer film was formed). 1 tab.
    公开号:SU1560070A3
    申请号:SU864028235
    申请日:1986-09-22
    公开日:1990-04-23
    发明作者:Роберт Гейтчэр Лесли；Мичель Блуменштейн Гэри；Джон Ширманн Питер
    申请人:Циба-Гейги Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to the field of photopolymerizable compositions (FPUs for making printed circuit boards.
    The aim of the invention is to increase the photosensitivity of the coating.
    Example 1 100 ma.ch. epoxy-acrylate is mixed with 1 mach. (h isopropylbenzene) - (ij-cyclopentadienyl) iron (II) -hexafluoro (phosphate (A) and wt.h. 2,2-dimethoxy-1,2-diphenyl-ethanone (B). The resulting solution is applied with 1.25 mm per reflective black paper. At a distance of 0.5 mm above the coating, a step wedge is mounted with 50 steps of different optical intensity. Samples are illuminated through this negative with a stationary mercury lamp, and the energy released is 160 mJ / cm1. The highest step of the step wedge, under which the polymer film was formed, is then determined. It is a criterion for the relative sensitivity of the FPC. The higher the number of steps, the more sensitive the finished product. For this example, the number of maximum steps is 13.
    Examples 2 and 3. FPC is obtained as in Example 1, with the difference that the quantitative content and the ratio of L and B are changed.
    Examples Get FPK, as in the example 1, g the difference that
    ate
    F
     cm
    As an ethylenically unsaturated compound, polyurethane acrylates of various grades are used and the ratio of A and B varies.
    Examples 12 and 13. Polyurethane methacrylate is used as an ethylenically unsaturated compound, while in example 12 the initiator is 2,2-diethoxy-1, 2-diphenylethanone-1 (C), and in example 13 it is 2.2-dimethyl- 2-hydroxyacetophenone (D).
    Example 14. The FPC is obtained by mixing ethylenically unsaturated compounds and a photoinitiator system at the following ratio, wt.h .:
    Polyurethane acrylate80
    Polyethylene glycol dimethyl
    ak | ilats15
    N-Vinylpyrrolidone5
    (.1-Isopropylbenzene) (1 / -cyclopentadienyl) geleo (11) -hexafluorophosphate 3
    2,2-Dimethoxy-1,2-dienylethanone-12
    The solution is applied to black paper as described in Example 1 and illuminated through a 50-step negative mask with an emission energy of 160 mJ / cm2. The relative photosensitivity value is 21.
    Examples 15-25. A mixture of ethylenically unsaturated compounds is prepared as in Example 14, with the difference that the quantitative content of compound A varies, and one of the compounds from the series, 2,2-dimethoxy-1,2-diphenylethanone- 1 (B); 2,2-diethoxy-1, 2-diphenyl-ethanone-1 (C); 2,2-dimethyl-2-hydroxyacetophenone (D); 1 -hydroxycyclohexyl-phenyl-ketone (E).
    Examples 26-28 (prototype). A mixture of ethylenically unsaturated compounds and Compound A is prepared as in Example 14, with the difference that tert-butyl hydropereris (TBHP) serves as an initiator.
    The results of relative sensitivity are presented in the table.
    As follows from the table, the relative sensitivity of the FPC, including compounds B, C, D and E, is significantly higher than the SC of the prototype,
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A photopolymerizable composition comprising an ethylenically unsaturated compound or a mixture of ethylenically unsaturated compounds, (α-isopropyl benzene) - (h-cyclopentadienyl) iron (II} -hexafluoro phosphate (A} and as an initiator, a compound from the series: 2,2-dimethoxy-1,2-diphenylethanone-, 2,2-diethoxy-1, 2-diphenylethanone-1, 2,2-dimethyl-2-hydroxy-acetophenone, 1-hydroxycyclohexylphenyl-ketone in the following ratio of components, wt.h .: Ethylenically unsaturated compound or a mixture of ilennenasyschennyh soedineniy1 00 (q -Izopropipbenzol) - (ch5- cyclopentadienyl) iron (II) -geksaftorfosyat 0.2-3 0.5-2 Initiator A and wherein the ratio of the initiator is from 3: 1 - 1: 2.5.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/779,343|US4707432A|1985-09-23|1985-09-23|Ferrocenium/alpha-cleavage photoinitiator systems for free radical polymerizable compositions|
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