Polyurethanes based on 1;4-3:6 dianhydrohexitols

Abstract

Polyurethane-type products are prepared by reacting a rigid diol such as a 1:4-3:6 dianhydrohexitol, such as isosorbide, with a polyisocyanate and, optionally, a polyahl. The high molecular weight polymers are easily prepared from renewable resources and exhibit good physical properties. The resulting polymer is suitably employed in the production of films, coatings, molded articles and foams.

Dependencies are inferred from the claim text.