Non-volatile phenylglyoxalic esters

C - Chemistry – Metallurgy – 07 – C

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C07C 69/76 (2006.01) C07C 69/738 (2006.01) G03F 7/031 (2006.01)

Patent

CA 2275667

Compounds of formula (I) in which R1 and R2 independently of one another are, for example, a group of formula (II); R3, R4, R5, R6 and R7 independently of one another are, for example, hydrogen, C1-C12alkyl, OR8, SR9, NR10R11, halogen or phenyl; R8, R9, R10, R11 independently of one another are, for example, hydrogen or C1-C12alkyl; R12 is, for example, C1-C8alkyl; R13 is, for example, C1-C12alkyl; R14 is, for example, hydrogen; Y is C1-C12alkylene, C4- C8alkenylene, C4-C8alkynylene or cyclohexylene, or is phenylene or C4- C40alkylene interrupted one or more times by -O-, -S- or -NR15-, or Y is a group of the formula (III), (IV), (V), (VI), (VII), (VIII), (IX), (X) or (XI); Y1 is as defined for Y with the exception of formula (V); R15 is hydrogen, C1- C12alkyl or phenyl; and R16 is hydrogen, CH2OH or C1-C4alkyl; and mixtures of these compounds with further photoinitiators are suitable for photopolymerizing compounds having ethylenically unsaturated double bonds.

L'invention concerne les composés selon la formule (I), dans laquelle R¿1? et R¿2? indépendamment l'un de l'autre, sont, par exemple, un groupe de la formule (II). Dans cette dernière formule, R¿3?, R¿4?, R¿5?, R¿6? et R¿7? sont, indépendamment l'un de l'autre, par exemple, de l'hydrogène, alkyle C¿1?-C¿12?, OR¿8?, SR¿9?; NR¿10?R¿11?, halogène ou phényle. R¿8?, R¿9?, R¿10?, R¿11? indépendamment l'un de l'autre, sont par exemple, de l'hydrogène ou alkyle C¿1?-C¿12?; R¿12? est, par exemple, de l'alkyle C¿1?-C¿8?; R¿13? est, par exemple, de l'alkyle C¿1?-C¿12?; R¿14? est, par exemple, de l'hydrogène; Y est alkylène C¿1?-C¿12?, alkénylène C¿4?-C¿8?, alkynylène C¿4?-C¿8? ou cyclohéxylène, ou est du phénylène ou alkylène C¿4?-C¿40? interrompu une ou plusieurs fois par -O-, -S- ou -NR¿15?-, ou Y est un groupe de la formule (III), (IV); (V), (VI), (VII), (VIII), (IX), (X) ou (XI). Y¿1? est comme défini pour Y à l'exception de la formule V. R¿15? est hydrogène, alkyle C¿1?-C¿12? ou phényle; et R¿16? est hydrogène; CH¿2?OH ou alkyle C¿1?-C¿4?. Des mélanges de ces composés avec d'autres photoinitiateurs conviennent pour des composés de photopolymérisation présentant des doubles liaisons insaturés en éthylène.

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