Curable resin composition for coating use

Details Curable resin composition for coating use Curable resin composition for coating use

C - Chemistry, Metallurgy

09

D

C09D 201/08 (2006.01) C08G 61/12 (2006.01)

Patent

CA 2205765

A resin composition curable through a Michael reaction between (a) a component having a plurality of .alpha.,.beta.-unsaturate carbonyl groups and (b) a component having a plurality of activated methylene group in the presence of a catalyst is disclosed. The activated methylene component is a polymer of an asymmetric malonate ester in which one of carboxyl groups is esterified with an alkanol while the other carboxyl group is esterified with hydroxyalkyl (meth) acrylate or polyoxyalkylene glycol mono(meth)acrylate.

Composition de résine durcissable obtenu par une réaction de Michael entre a) un composant à plusieurs groupes carbonyles alpha, bêta insaturés et b) un composant ayant plusieurs groupes méthylène activés en présence d'un catalyseur. Le composant méthylène activé est un polymère formé par un ester malonate asymétrique dont l'un des groupes carboxyliques est estérifié par réaction avec un alcanol alors que l'autre groupe carboxylique est estérifié par réaction avec un (méth)acrylate d'hydroxyalkyle ou avec un mono(méth)acrylate de polyoxyalkylèneglycol.

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