Anthraquinones of formula I ##STR1## wherein X is the group --CR.sup.2 R.sup.3 --, where R.sup.2 is H, --CN or C.sub.1 -C.sub.5 -alkyl and R.sup.3 is H or --CN, R.sup.1 is H or C.sub.1 -C.sub.5 -alkyl and R is a direct bond or linear or branched C.sub.1 -C.sub.18 -alkylene which, alone or together with the --CR.sup.2 R.sup.3 -- group, can be interrupted by one or more --O-- when R.sup.2 and/or R.sup.3 are not --CN, and curable compositions comprising (a) an epoxy resin, (b) a hardener if necessary, (c) an anthraquinone of formula I and (d) an amino alcohol. The cured compositions are photosensitive and are suitable for the preparation of coatings and metallic images by electroless metal deposition.
公式I的
蒽醌,其中X是--CR.sup.2 R.sup.3 --基团,其中R.sup.2是H,--CN或C.sub.1 -C.sub.5 -烷基,R.sup.3是H或--CN,R.sup.1是H或C.sub.1 -C.sub.5 -烷基,R是直链或支链C.sub.1 -C.sub.18 -烷基,可以单独或与--CR.sup.2 R.sup.3 --基团一起被一个或多个--O--所中断,当R.sup.2和/或R.sup.3不是--CN时,可硬化组合物包括(a)环氧
树脂,(b)必要时的固化剂,(c)公式I的
蒽醌和(d)
氨基醇。硬化后的组合物具有光敏性,适用于通过无电镀
金属沉积制备涂层和
金属图像。