Patent ID: 9284423
Filing Date: 2016-03-15
CPC Classification: B01J,C08J,C09D

Claim Text:
1. A crosslinkable composition comprising a. a component A with at least 2 RMA donor groups being acidic protons C—H in activated methylene or methine groups, and b. a component B with at least 2 RMA acceptor groups being activated unsaturated groups, and c. a catalyst system C that contains, or is able to generate, a basic catalyst capable of activating the RMA reaction between components A and B, d. wherein the cross-linkable composition further comprises an X—H group containing component D that is also a RMA addition donor reactable with component B under the action of catalyst C, wherein X is N, P, O, S, or wherein X is C as part of an acidic methyl group, wherein component A is malonate or acetoacetate, and wherein the X—H group of component D has a higher acidity than the C—H groups in component A, wherein component D has a pKa, defined in aqueous environment, of at least one unit less than that of the C—H groups in component A.