申请人:Ciba-Geigy Corporation
公开号:US04506083A1
公开(公告)日:1985-03-19
Thioxanthonecarboxylic acid esters, thioesters or amides of the formula I ##STR1## in which X and Z are hydrogen or one of the substituents defined in more detail in claim 1 and Y is --OR.sub.1, --SR.sub.1 or --N(R.sub.1)(R.sub.2), in which R.sub.1 is C.sub.1-24 alkyl and R.sub.2 is H or R.sub.1, are suitable, if desired together with amines, as initiators for the photopolymerization of ethylenically unsaturated compounds or for photochemical crosslinking of polyolefines. They are also used an sensitizers for photocrosslinkable polymers. They can be prepared by methods known per se, for example by cyclization of phenylthio-phthalic, -isophthalic or -terephthalic acids, which can be correspondingly substituted, and subsequent reaction with suitable alcohols, thiols or amines.
硫代蒽羧酸酯,硫酯或式I的酰胺 ##STR1## 其中X和Z为氢或更详细定义在权利要求书中的取代基之一,Y为--OR.sub.1,--SR.sub.1或--N(R.sub.1)(R.sub.2),其中R.sub.1为C.sub.1-24烷基,R.sub.2为H或R.sub.1,如果需要可以与胺一起作为乙烯基不饱和化合物的光聚合引发剂或聚烯烃的光化学交联剂。它们还用作光交联聚合物的敏化剂。它们可以通过已知的方法制备,例如通过苯硫酸、异苯二甲酸或对苯二甲酸的环化,这些酸可以相应地取代,并随后与适当的醇,硫醇或胺反应而制备。