KETAL-PROTECTED POLYOLS FOR LOW VOC COATINGS

摘要

The invention relates to a coating composition wherein ketal groups block the hydroxyl groups of the poly(meth)acrylate and the ketal groups can be removed through hydrolysis in order to facilitate cross-linking through reaction with polyisocyanate compounds. The invention also relates to a process for curing the aforementioned coating composition. The invention also relates to a process for coating substrates wherein a clear coat comprising the aforementioned coating composition is coated over a base coat. The invention also relates to a process for blocking the hydroxyl groups of a poly(meth)acrylate compound through reaction with a ketal compound.