The present invention relates to a stabilized drying catalyst (‘drier’) for enhancing or accelerating oxidative air-drying of an alkyd-based composition, comprising an inclusion complex of a cyclodextrin and a metal salt of formula (Mx+)k(Rk−)χ, wherein M is a transition or rare earth metal cation with charge x and R is an anion with charge k. The present invention preserves the catalytic activity of a drier, particularly upon addition to an alkyd composition, thus providing a method for stabilizing the drying time of the alkyd composition. A process for preparing the stabilized drier is also provided.
本发明涉及一种稳定的干燥催化剂(“干燥剂”),用于增强或加速以醇酸
树脂为基础的组合物的氧化空气干燥,包括
环糊精和公式(Mx +)k(Rk-)χ的
金属盐的包含复合物,其中M是带电x的过渡
金属或稀土
金属阳离子,R是带电k的阴离子。本发明保留了干燥剂的催化活性,特别是在添加到醇酸
树脂组合物时,从而提供了一种稳定醇酸
树脂组合物干燥时间的方法。本发明还提供了一种制备稳定干燥剂的方法。