申请人:LOCTITE CORPORATION
公开号:EP0162572A1
公开(公告)日:1985-11-27
An organopolysiioxane photoinitiator having an average of at least two siloxane units, of which at least an average of one siloxane unit per organopolysiloxane molecule has the formula:
wherein a is an integer of 1-3, b is an integer of 0-2 and a plus b equals 1-3; R is C1-C10 hydrocarbyl or halogen substituted C1-C10 hydrocarbyl; and X is a substituted acetophenone photomoiety selected from:
where R1 is any substituent which will not interfere with hydrosilation, n is an integer between 0 and 5 in formulas (II), (Ila), (III), (IIIa), (IV) and (IVa) and between 0 and 4 in formula (III) and (IIIa); m is 0 or 1; R2 is alkyl or substituted alkyl; R3 is H, alkyl or aryl; R4 is a divalent hydrocarbon group having between 2 and 10 carbon atoms or an alkylene oxy alkylene group; R5 is a group selected from H, alkyl, aryl, organosilyl, or the reaction product of an isocyanate esterification reagent or an etherification reagent with the hydroxyl product formed when R5 is H and R6 is a trivalent hydrocarbon or hydrocarbon oxyhydrocarbon group.
The silicones are prepared by hydrosilation of the corresponding olefinically or acetylenically unsaturated acetophenones.
一种平均具有至少两个硅氧烷单元的有机聚硅氧烷光引发剂,其中每个有机聚硅氧烷分子平均具有至少一个硅氧烷单元,其化学式为
其中 a 是 1-3 的整数,b 是 0-2 的整数,a 加 b 等于 1-3;R 是 C1-C10 碳氢基或卤素取代的 C1-C10 碳氢基;X 是选自以下各项的取代苯乙酮光异构体:
其中 R1 是不会干扰水合作用的任何取代基,n 在式(II)、(Ila)、(III)、(IIIa)、(IV)和(IVa)中是 0 至 5 之间的整数,在式(III)和(IIIa)中是 0 至 4 之间的整数;m 是 0 或 1;R2 是烷基或取代的烷基;R3 是 H、烷基或芳基;R4 是具有 2 至 10 个碳原子的二价烃基或烷氧基烷基; R5 是选自 H、烷基、芳基、有机硅基的基团,或异氰酸酯酯化试剂或醚化试剂与 R5 为 H 时形成的羟基产物的反应产物,R6 是三价烃基或烃氧基烃基。
硅酮是通过相应的烯烃或乙炔不饱和苯乙酮的加氢反应制备的。