Polyurethanes prepared from liquid crystal-contaning polyols and process for preparing the same.

摘要

This invention is a solution or dispersion of a liquid crystalline polymer characterized by having a polymer backbone to which are attached a plurality of pendant liquid crystalline moieties in an active hydrogen-containing compound having at least two active hydrogen-containing moieties. In another aspect, this invention is a polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with a solution or dispersion of a liquid crystalline polymer characterized by having a polymer backbone to which are attached a plurality of pendant liquid crystalline moieties in an active hydrogen-containing compound having at least two active hydrogen-containing moieties. The inclusion of a liquid crystalline polymer in an active hydrogen-containing compound has surprisingly been found to yield significant and unexpected improvements in the physical properties of polyurethane and/or polyurea polymers prepared therefrom. In particular, cellular polurethane and/or polureas made from these solutions have excellent firmness and high moduli.