Urea and transiently inhibited compositions of hybrid coating, urethane urea

摘要

A curable composition for Coating contained in Solvent, includes a Resin formed so as to have a functional part of Amine and optionally a hydroxyl Functional compound; at least one polisocianato; and at least a volatile organic acid, Salts and a solven Trainer You Inert. The compositions may also include an organometallic Catalyst.It is believed that the volatile organic acid salt formation by temporarily inhibiting Amine in Composition, therefore, the intersection of isocyanate and amine /, where is present an organometallic Catalyst Inhibits the Catalysis.Both inhibitory effects were reversed with the evaporation of the acid, which may occur, in essence, after the composition is applied to a substrate. The delayed Crosslinking, achieved by the use of acid, however, can provide a more complete evaporation of the Solvent from coating, resulting in improved Coating Properties.