Patent ID: 6602973
Filing Date: 2003-08-05
Classification: C08G,C09D,C09K

Abstract:
A method for producing a one-component sealing and coating compound with a polyurethane base, comprising:(a) mixing and stirring a polyol component and a diisocyanate component to obtain an isocyanate prepolymer with >2 weight % residual monomeric diisocyanate as an intermediary product; (b) dispersing pigments and inorganic filling material, said filling material containing some moisture, into the product of step (a) and adding solvents while stirring, such that said residual monomeric diisocyanate reacts with said water introduced with the filling material until an H2O content of <0.01 weight % is obtained in the reaction mixture; and (c) adding an H2O reactive latent curing agent and optionally one catalyst, and filling the resulting sealing- and coating compound into a container under exclusion of air.