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AssigneeSika Technology AG
InventorsBurkhard WALTHER, Christian BRUCHERTSEIFER, Olaf JANSSEN
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A coating composition includes an isocyanate compound, an isocyanate-reactive compound, a reactive diluent with (meth)acrylate functionality, optionally a carbon dioxide scavenger and an autooxidation catalyst. Moreover, a method prepares a reactive composition of an isocyanate compound with an isocyanate-reactive compound by adding a reactive diluent with (meth)acrylate functionality, optionally a carbon dioxide scavenger and an autooxidation catalyst. Finally, acrylates and/or methacrylates are used as reactive diluents for the reaction of an isocyanate compound with an isocyanate-reactive compound in the presence of an autooxidation catalyst and optionally a carbon dioxide scavenger.
A coating composition comprising
A method comprising using acrylates and/or methacrylates having ≥1 acrylate and/or methacrylate groups and having no isocyanate-reactive groups, as reactive diluents for the reaction of an isocyanate compound (A) having ≥2 —NCO groups and an isocyanate-reactive com-pound (B) having ≥2 isocyanate-reactive groups, in the presence of a carbon dioxide scavenger (D) if the reaction of (A) and (B) liberates carbon dioxide, and an autooxidation catalyst (E), wherein the autooxidation catalyst (E) is selected from transition metal compounds, wherein the transition metal is selected from Mn, Fe and Cu.
Dependencies are inferred from the claim text.