Photocurable mixtures

Details Photocurable mixtures Photocurable mixtures

C - Chemistry, Metallurgy

08

F

402/372, 400/515

C08F 2/50 (2006.01) C07D 295/00 (2006.01) G03F 7/031 (2006.01)

Patent

CA 1226287

Photocurable mixtures Abstract The photopolymerisable mixture described contains A) at least one ethylenically unsaturated photopolymerisable compound, B) a photoinitiator of the formula I or II Image I Image II and C) a photosensitiser from the group of aromatic carbonyl compounds having a triplet energy of 225-310 kJ/mol, for example xanthones, thioxanthones, coumarins, phthalimides, phenones and the like. The symbols Ar, R1, R2, R3, R4 and X are as defined in the claims. Said sensitisers C) raise the activity of said photoinitiators (B) without shortening the shelf life of the mixtures. The photocurable mixtures are used especially as binders for printing inks or paints.

460856

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