Compositions which undergo light-induced cationic curing and...

Details Compositions which undergo light-induced cationic curing and... Compositions which undergo light-induced cationic curing and...

C - Chemistry, Metallurgy

08

G

C08G 59/68 (2006.01) A61K 6/087 (2006.01) C08G 65/18 (2006.01) C08L 63/00 (2006.01) C08L 71/02 (2006.01) G03F 7/038 (2006.01)

Patent

CA 2245548

The invention relates to compositions which undergo cationic curing with visible light, comprising: (a) 0.01 to 8 wt.% of at least one diaryliodonium compound, (b) 0.01 to 8 wt.% of at least one .alpha.-dicarbonyl compound, (c) 10.0 to 99.9 wt.% of at least one compound containing epoxide groups and/or oxetane groups, (d) 0 to 85 wt.% of modifiers, such as fillers, dyestuffs, pigments, flow improvers, thixotropic agents, polymeric thickeners, additives having an oxidizing action, stabilizers and retardants, characterized in that they additionally comprise (e) 0.001 to 5 wt.% of at least one aromatic amine. The compositions have a low intrinsic colour, cure with little smell and, after curing, give compositions with very good mechanical properties.

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