Polycaprolactone polyols, polyurethanes, and methods of making and using the same

Abstract

A caprolactone polyol and polyurethane materials or adhesives including the same are described herein. The caprolactone polyol is made by a process of admixing an initiator and a caprolactone monomers to form an initiator-caprolactone mixture or reaction mixture; adding a catalyst to the initiator-caprolactone mixture to form a reaction mixture; and polymerizing the caprolactone monomers in the reaction mixture, thereby forming the caprolactone polyol, wherein the initiator includes hydroquinone bis(2-hydroxyethyl)ether, dodecanediol, pentaspiroglycol, or a combination thereof. The polyurethane materials or adhesives described herein have decreased open time, while having decreased viscosity, improved adhesion, and improved tensile strength, as compared to caprolactone polyols prepared without the initiator of the present disclosure. Methods of making and using the caprolactone polyol and polyurethane materials or adhesives are also described herein.

Dependencies are inferred from the claim text.