公开(公告)号：US4755541A

公开(公告)日：1988-07-05

申请号：US886929

申请日：1986-07-18

申请人： Giuseppe Li Bassi ,  Luciano Cadona ,  Carlo Nicora

发明人： Giuseppe Li Bassi ,  Luciano Cadona ,  Carlo Nicora

IPC分类号： C07C49/76 ,  C07C45/00 ,  C07C67/00 ,  C08F2/50 ,  G03F7/031 ,  C08F4/40 ,  C08L63/10

CPC分类号： G03F7/031 ,  C08F2/50

摘要： As initiators for the photopolymerisation of ethylenically unsaturated compounds, the use of systems consisting of compounds of benzophenone type of formula I ##STR1## in which R, R' and R.sup.2 are preferably alkyls of 1-4 carbon atoms, R.sup.3 and R.sup.4 are preferably hydrogen and Ar is preferably phenyl, in combination with donors of hydrogen or substances which determine the formation of labile photochemical complexes, such as alcohols, ethers and tertiary amines with hydrogen in the alpha position, and the use for the same purpose of mixtures of 2,4,6-trialkylbenzophenones and benzophenone and particularly of a mixture of 2,4,6-trimethylbenzophenone and benzophenone in a molar ratio of 1.155, which has the advantage of being liquid at temperatures exceeding 10.degree. C. and of possessing photochemical activity superior to that of benzophenone.

摘要翻译： 作为烯键式不饱和化合物光聚合的引发剂，使用由式I的二苯甲酮化合物（其中R，R'和R 2优选为1-4个碳原子的烷基，R 3和R 4） 氢和Ar优选为苯基，与氢的供体或决定形成不稳定光化学配合物的物质，例如在α位上具有氢的醇，醚和叔胺，以及用于相同目的的2 ，4,6-三烷基二苯甲酮和二苯甲酮，特别是2,4,6-三甲基二苯甲酮和二苯甲酮的混合物，摩尔比为1.155，其优点是在超过10℃的温度下具有液体，并且具有优异的光化学活性 到二苯甲酮。