CATALYST COMPOUND FOR TWO-COMPONENT COATING COMPOSITIONS

摘要

The invention relates to catalyst compounds for water-based two-component coating compositions comprising: I) at least one organo-metal catalyst for the curing reaction between isocyanate groups and functional groups reactive towards isocyanate groups and II) at least one oligomeric or polymeric binder compound having a glass transition temperature Tg of >=20° C, measured by DSC (differential scanning calorimetry) at a heating rate of 10 K/min, wherein the glass transition temperature Tg of binder compound II) is above the temperature at which a water-based two-component coating composition comprising the catalyst compound is applied, preferably is at least 10° C, more preferred at least 20° C above the temperature at which said two-component coating composition is applied.