title: Rigid Urethane Foams Based on Sorbitol Derivatives.
abstract: Present commercial rigid foams are based on polyester raw materials. It has now been demonstrated that certain hydroxyl-terminated polyethers can be used satisfactorily as a major component of rigid urethane foams. These polyethers are hexafunctional materials prepared by reacting propylene oxide with sorbitol.
authors.forename: J E
authors.initials: JE
authors.lastname: Wilson
authors.forename: R H
authors.initials: RH
authors.lastname: Fowler