Photopolymerizable mixture and photopolymerizable copying...

Details Photopolymerizable mixture and photopolymerizable copying... Photopolymerizable mixture and photopolymerizable copying...

G - Physics

03

C

96/178

G03C 1/73 (2006.01) C07D 219/02 (2006.01) C08F 2/50 (2006.01) G03F 7/031 (2006.01) G03F 7/20 (2006.01)

Patent

CA 2006074

A photopolymerizable mixture is described which contains a polymeric binder, a polymerizable compound and an acridine compound of the general formula I (see fig. I) as photoinitiator, in which R1 denotes an optionally substituted alkyl or acyl group, R2, R3 are identical or different and denote and R4 hydrogen or halogen atoms or optionally substituted alkyl or acyl groups, R5, R6 are identical or different and denote and R7 hydrogen or halogen atoms or optionally substituted alkyl, aryl or acyl groups, or groups of the formula II (see fig. II) The photoinitiators yield a mixture having high photosensitivity and have a lower tendency to diffusion than the known 9-phenylacridine.

On décrit un mélange photopolymérisable contenant un liant polymérique, un composé polymérisable et un composé acridinique servant de photoamorceur, de formule générale I (voir figure I) dans laquelle R1 représente un groupement alkyle ou acyle facultativement substitué, R2 , R3 et R4 sont identiques ou différents et représentent des atomes d'hydrogène, des atomes d'halogènes ou des groupements alkyles ou acyles facultativement substitués, R5, R6 et R7 sont identiques ou différents et représentent des atomes d'hydrogène, des atomes d'halogène, des groupements alkyles, aryles ou acyles facultativement substitués ou des groupements de formule II (voir figure II). Les photoamorceurs produisent un mélange de haute photosensibilité et ayant une tendance à la diffusion plus faible que celle du composé connu 9-phénylacridine.

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