Compounds of formula (I): [where: the substituents R1 are individually selected from C1-C10 alkyl groups and optionally substituted benzyl groups; the substituents R2 are individually selected from alkyl groups or, together with the nitrogen atom to which they are attached, represent a nitrogen-containing heterocyclic group; Z is selected from C6-C10 arylene groups and groups of formula —(CHR3)n—, where R3 is hydrogen, hydroxy or a C1-C4 alkyl group, and n is 0 to 6; Y is carbonyl or —CH2—; Q is a residue of a mono- or poly-hydroxy compound; and x is 1 to 6; and esters thereof] are useful as multi-functional photoinitiators for use in coating compositions to be cured by radiant energy.
化合物的
化学式为(I):[其中:取代基R1分别选自C1-C10烷基和可选取代
苯基基团;取代基R2分别选自烷基或与它们连接的
氮原子一起表示含
氮杂环基团;Z选自C6-C10芳基基团和公式—(CHR3)n—的基团,其中R3是
氢、羟基或C1-C4烷基基团,n为0到6;Y为羰基或—
CH2—;Q为单或多羟基化合物的残基;x为1到6;以及它们的
酯],用作多功能光
引发剂,用于通过辐射能固化的涂料组合物中。