Inventors:
Francis E. Gould - Princeton NJ
Ellen K. Morgan - Princeton NJ
Stephen D. Reduker - Somerset NJ
Assignee:
Tyndale Plains-Hunter Ltd. - Princeton NJ
International Classification:
C08F28304
Abstract:
Water absorptive polyurethane composition, having high mechanical strength, is formed of A. about 25% to about 75% of a hydrophilic polyether polyurethane which is the reaction product of diethylene glycol and a polyoxyethylene glycol having a molecular weight of about 1000 to about 8000 with a polyisocyanate and B. about 75% to about 25% of a hydrophobic polyester polyurethane which is the reaction product of a polyfunctional polyester derived from the condensation of a polyol with a polybasic acid with a polyisocyanate.