CROSSLINKABLE COMPOSITION COMPRISING A LATENT BASE CATALYST AND LATENT BASE CATALYST COMPOSITIONS

摘要

A crosslinkable composition including at least one crosslinkable component that is crosslinkable under the action of a base catalyst, a first carbonate salt according to a first formula as latent base crosslinking catalyst, and a second carbonate salt according to a second formula as potlife extender, wherein the second carbonate is present in an amount of at least 5 mole % and preferably at most 500 mole % relative to the molar amount of the first carbonate. Further disclosed are catalyst compositions composed of the first and second carbonate salts, to the use of the catalyst composition as base catalyst system in crosslinkable compositions and the crosslinkable compositions, in particular coating compositions comprising the catalyst composition.

主权项

1. A crosslinkable composition comprising
a. 0.1-99 wt % of at least one crosslinkable component that is crosslinkable under the action of a base catalyst, all wt % herein being relative to the crosslinkable composition, b. a first carbonate salt according to formula 1 as latent base crosslinking catalyst,  wherein X+ represents a non-acidic cation and wherein R is hydrogen, alkyl, or aralkyl group, and c. a second carbonate salt according to Formula 2 as potlife extender:  wherein Y is N or P and wherein each R′ is hydrogen, a substituted or unsubstituted alkyl, aryl or aralkyl group, wherein the second carbonate is present in an amount of at least 5 mole % and at most 500 mole % relative to the molar amount of the first carbonate,