One-component, heat-curing polyurethane-coatings, stable in storage

Abstract

A polyurethane one-component heat-curing coating which is stable in storage and is hardened above a temperature of about 120.degree. C., comprising a polyol compound having a low glass transition temperature, and a blocked polyisocyanate compound, wherein the blocked polyisocyanate compound is the reaction product of a polyisocyanate compound and a secondary amine compound having the formula: ##STR1## wherein R is selected from the group consisting of hydrogen atom, C.sub.3 -C.sub.9 alkyl radical, unsubstituted cycloalkyl radical, cycloalkyl radical substituted by C.sub.1 -C.sub.4 alkyl radicals, or heteroatom-containing cycloalkyl radical, wherein each R is identical to or different from each other; R.sup.1 is selected from the group consisting of alkyl radical, or cycloalkyl radical, wherein each R.sup.1 is identical to or different from each other; or R and R.sup.1 are chemically bonded therebetween, thereby forming a ring structure.

Dependencies are inferred from the claim text.