C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/10 (2006.01) B05D 1/36 (2006.01) C08F 8/14 (2006.01) C08F 8/44 (2006.01) C08F 220/32 (2006.01) C08G 81/02 (2006.01) C09D 133/06 (2006.01) C09D 133/14 (2006.01)
Patent
CA 2177594
A process is disclosed for preparing water-dilutable, acrylate copolymer-based lacquer binders. A polycarboxylic component is reacted with an epoxide group-containing polyhydroxylic component, and the carboxylic groups are then at least partially neutralised. As epoxide group-containing monomers for the polyhydroxylic components, glycidyl(meth)acrylate and/or glycidylallylether are used in proportions from 0.1 to 3 % by weight. Associated with cross-linking components if required with other lacquer binders, these lacquer binders are suitable for producing water-dilutable baking enamels with a low auxiliary organic solvent content.
Selon un procédé de préparation de liants diluables dans l'eau à base de copolymères d'acrylate pour laques, on fait réagir un composant polycarboxylique avec un composant polyhydroxylique contenant des groupes époxydes, puis on neutralise au moins en partie les groupes carboxyliques. En tant que monomères contenant des groupes époxydes, pour les composants polyhydroxyliques, on utilise le glycidyl(méth)acrylate et/ou le glycidylallyléther dans des proportions comprises entre 0,1 et 3 % en poids. Associés à des agents de réticulation et le cas échéant à d'autres liants pour laques, ces liants pour laques sont utiles pour préparer des laques à cuire diluables dans l'eau, à faible teneur en solvants auxiliaires organiques.
Gossak Kurt
Kriessmann Ingo
Wilfinger Werner
Fetherstonhaugh & Co.
Solutia Austria Gmbh
Vianova Resins Aktiengesellschaft
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