Photoinitiator mixtures containing a titanocene and a 3-ketocoumarin
    7.
    发明授权
    Photoinitiator mixtures containing a titanocene and a 3-ketocoumarin 失效
    含有二茂钛和3-酮香豆素的光引发剂混合物

    公开(公告)号:US5011755A

    公开(公告)日:1991-04-30

    申请号:US473135

    申请日:1990-01-30

    摘要: The present invention relates to compositions comprising(a) a titanocene photoinitiator of the formula I ##STR1## (b) a 3-ketocoumarin of the formula II ##STR2## in which both R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1, R.sup.4 is a radical of the formula V ##STR3## R.sup.5 is C.sub.1 -C.sub.20 alkyl, cycloalkyl having 5-7 ring carbon atoms, phenyl or naphthyl which are unsubstituted or substituted by one to three C.sub.1 -C.sub.6 alkyl groups, C.sub.1 -C.sub.6 alkoxy groups or halogen atoms or by one diphenylamino or C.sub.1 -C.sub.6 dialkylamino group, or is C.sub.7 -C.sub.9 aralkyl, a radical --(CH.dbd.CH).sub.a --C.sub.6 H.sub.5 or a radical of the formula V, a is 1 or 2, preferably 1, and R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 independently of one another are hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, phenyl, tolyl, xylyl or benzyl, and R.sup.11 can additionally also be a group --NR.sup.15 R.sup.16 or --OR.sup.15, wherein R.sup.15 and R.sup.16 independently of one another are hydrogen or C.sub.1 -C.sub.6 alkyl, it also being possible for two or three of the radicals R.sup.10, R.sup.11, R.sup.12 and R.sup.13 together with the ring carbon atoms, to which they are attached, to form a fused ring having 5 or 6 ring atoms or a fused ring system having 5-membered or 6-membered rings. The photoinitiator mixtures can be used in combination with ethylenically unsaturated monomers, preferably with photopolymerizable precursors of thermally stable polymers. These mixtures can be processed especially on substrates having surfaces which are strongly scattering or strongly reflecting, to give relief structures with high resolution.

    摘要翻译: 本发明涉及组合物,其包含(a)式I的二茂钛光引发剂(I)(b)式II的3-酮香豆素(II),其中R1,R2和R3均为 权利要求1中定义的R 4是式V的基团(V)R 5是C 1 -C 20烷基,具有5-7个环碳原子的环烷基,未被取代或被一至三个C 1 -C 6烷基取代的苯基或萘基 C 1 -C 6烷氧基或卤素原子或一个二苯基氨基或C 1 -C 6二烷基氨基,或者是C 7 -C 9芳烷基,基团 - (CH = CH)a -C 6 H 5或式V基团,a是1或2,优选 1和R 10,R 11,R 12,R 13和R 14彼此独立地是氢,C 1 -C 6烷基,C 1 -C 6烷氧基,苯基,甲苯基,二甲苯基或苄基,R 11还可以是基团-NR 15 R 16或-OR 15,其中 R 15和R 16彼此独立地是氢或C 1 -C 6烷基,基团R 10,R 11,R 12和R 13中的两个或三个与环碳原子一起也可以 它们相连,形成具有5或6个环原子的稠环或具有5元环或6元环的稠环体系。 光引发剂混合物可以与烯属不饱和单体组合使用,优选与热稳定聚合物的可光聚合前体一起使用。 这些混合物可以特别在具有强散射或强烈反射的表面的基底上进行加工,以提供高分辨率的浮雕结构。

    Titanocenes and a radiation-polymerizable composition containing these
titanocenes
    9.
    发明授权
    Titanocenes and a radiation-polymerizable composition containing these titanocenes 失效
    钛菁和含有这些二茂钛的可放射线聚合组合物

    公开(公告)号:US4855468A

    公开(公告)日:1989-08-08

    申请号:US099362

    申请日:1987-09-11

    摘要: Titanocenes with .pi.-cyclopentadienyl ligands, in which one or two carbocyclic or heterocyclic aromatic rings are bonded to the metal, the aromatic rings being substituted in at least one of the two ortho-positions relative to the metal-carbon bonds by CF.sub.2 Z (Z=F or substituted or unsubstituted alkyl), are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds. They are distinguished by a high radiation sensitivity, stability to air and thermal effects, and high effectiveness in the range from UV light to visible light.

    摘要翻译: 其中一个或两个碳环或杂环芳环与金属键合,所述芳环在相对于金属 - 碳键的两个邻位中的至少一个中被CF 2 Z取代(Z = F或取代或未取代的烷基)适用作用于烯属不饱和化合物的光聚合的光引发剂。 它们的特征在于高辐射敏感性,对空气的稳定性和热效应,以及在从紫外光到可见光的范围内的高效率。