Air-drying coating compositions

Details Air-drying coating compositions Air-drying coating compositions

C - Chemistry, Metallurgy

08

G

402/275

C08G 59/56 (2006.01) C08F 299/02 (2006.01) C08G 59/14 (2006.01)

Patent

CA 1055195

AIR-DRYING COATING COMPOSITIONS ABSTRACT OF THE DISCLOSURE Air-drying unsaturated coating compositions are obtained by reacting at least 60% of the epoxide groups of a poly- epoxide with more than one epoxide group per molecule a) with 0.01 to 0.5 NH-equivalents, based on one epoxide group of ammonia, an aliphatic or cycloaliphatic primary or secondary amine and subsequently b) with 0.99 to 0,5 carboxyl equivalents, based on one epoxide group of acrylic or methacrylic acid, The reaction products may be mixed with solvents and/or copolymerizable monomers and are preferably hardened in the presence of known photoinitiators with the aid of energy radiation, and are thus useful as coating compositions for various substrates. Their particular advantages are their stability in the dark and that they also harden very quickly in the presence of atmospheric oxygen. Preferred substrates are paper and cardboards.

229590

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