Preparation of a water soluble composition and use thereof in a water-based coating

摘要

The invention relates to a process for the preparation of a water soluable composition comprising the reaction product of a polymer having optionally masked hydroxy groups and a curing reagent having substituents which are reactive towards said optionally masked hydroxy groups, wherein the polymer is reacted with the curing agent in water in the presence of an organosol. The polymer is preferably selected from epoxy resins, polyester polyols and polyether polyols. The invention also relates to a water-based coating comprising 20 to 30 % wt. of water and 10 to 15 % wt. of the water soluable composition.