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    • 3. 发明授权
    • Photopolymerizable compositions containing aminoaryl ketone
photoinitiators
    • 含有氨基芳基酮光引发剂的光聚合组合物
    • US5145885A
    • 1992-09-08
    • US612752
    • 1990-11-13
    • Godwin BernerKurt MeierKurt DietlikerRinaldo Husler
    • Godwin BernerKurt MeierKurt DietlikerRinaldo Husler
    • C08F2/50G03F7/031
    • G03F7/031C08F2/50
    • The photopolymerizable composition described containsA) at least one ethylenically unsaturated photopolymerizable compound,B) a photoinitiator of the formula I ##STR1## and C) a photosensitizer from the group of aromatic carbonyl compounds having a triplet energy of 225-310 kJ/mol, for example xanthones, thioxanthones, coumarins, phthalimides, phenones and the like.Ar is phenyl substituted in the 4-position by a substituted amino group, R.sup.1 and R.sup.2 are alkyl, R.sup.3 and R.sup.4 are alkyl or alkoxyalkyl, or R.sup.3 and R.sup.4 together are 3-oxapentamethylene. Said sensitizers C) raise the activity of said photoinitiators (B) without shortening the shelf life of the mixtures. The photocurable mixtures are used especially as binders for printing inks or paints.
    • 所述的可光聚合组合物包含A)至少一种烯属不饱和光聚合化合物,B)式I的光引发剂,和C)来自具有225-310的三线态能量的芳族羰基化合物的光敏剂 kJ / mol,例如呫吨酮,噻吨酮,香豆素,邻苯二甲酰亚胺,苯酮等。 Ar是在4位被取代的氨基取代的苯基,R 1和R 2是烷基,R 3和R 4是烷基或烷氧基烷基,或者R 3和R 4一起是3-氧杂五亚甲基。 所述敏化剂C)提高所述光引发剂(B)的活性,而不会缩短混合物的保质期。 可光固化的混合物特别用作印刷油墨或涂料的粘合剂。