Polyurethanes prepared from polycarbonate polyols, articles and coatings prepared therefrom and methods of making the same

Abstract

The present invention provides polyurethanes including a reaction product of components comprising: (a) about 1 equivalent of at least one polyisocyanate; (b) about 0.3 to about 1 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; (c) about 0.01 to about 0.3 equivalents of at least one polycarbonate diol; and (d) about 0.1 to about 0.9 equivalents of at least one diol having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyether polyol and the reaction components are maintained at a temperature of at least about 100° C. for at least about 10 minutes; compositions, coatings and articles made therefrom and methods of making the same.

Dependencies are inferred from the claim text.