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AssigneeNuplex Resins B.V.
InventorsRichard Hendrikus Gerrit Brinkhuis, Jan Andre Jozef Schutyser, Paulus Jozef Dolphijn, Antonius Johannes Wilhelmus Buser, Petrus Johannes Maria David Elfrink, Michael Anthony Gessner, Mohamad Deeb Shalati
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The present invention relates to a crosslinkable composition comprising at least one crosslinkable component and a latent base crosslinking catalyst, which crosslinkable composition has a solids content of typically at least 55 wt (dry weight after crosslinking relative to the total weight of the crosslinking composition) wherein the latent base catalyst is a substituted carbonate salt according to formula (I) wherein X+ represents a non acidic cation, preferably a quaternary ammonium or phosphonium, and wherein R is hydrogen, alkyl, aryl or aralkyl group. The invention relates in particular to a composition crosslinkable by Real Michael Addition (RMA) reaction wherein a component with at least 2 activated unsaturated groups and a malonate component with at least 2 acidic protons C—H in activated methylene or methine groups react and crosslink to each other in the presence of the base catalyst. The invention further relates to a coating composition comprising the crosslinkable composition according to the invention, a novel catalyst composition and to the use of said catalyst composition according to the invention as a latent base crosslinking catalyst in coating compositions, preferably in RMA crosslinkable compositions of the base catalyst. The invention further relates to a coating composition comprising the crosslinkable composition according to the invention, a novel catalyst composition and to the use of said catalyst composition according to the invention as a latent base crosslinking catalyst in coating compositions, preferably in RMA crosslinkable compositions.
A crosslinkable polymer composition comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (C—H) in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C═C) to achieve crosslinking by Real Michael Addition (RMA) wherein the component A is a malonate containing component and wherein components A and B react on drying of the crosslinkable polymer composition by deblocking of latent base catalyst C by evaporation of carbon dioxide, which latent base crosslinking catalyst is a substituted carbonate salt according to formula 1
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A crosslinkable composition comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (C—H) in activated methylene or thine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C═C) wherein components A and B react to crosslink by Real Michael Addition (RMA) on drying of the crosslinkable polymer composition by deblocking of latent base catalyst C by evaporation of carbon dioxide, said polymer composition comprising
A crosslinkable polymer composition for use in the preparation of a 2K crosslinkable coating composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (C—H) in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C═C) which at least one crosslinkable component crosslink by Real Michael Addition (RMA) reaction upon deblocking of latent base catalyst C by evaporation of carbon dioxide, wherein the latent base catalyst C is a substituted carbonate salt according to formula 1
Dependencies are inferred from the claim text.