Patent ID: 6627699
Filing Date: 2003-09-30
Classification: C08G,C08K

Abstract:
An isocyanate terminated prepolymer which is liquid at 25Â° C. and has a viscosity at 25Â° C. in the range of 300 to 4000 cps, comprising:A) the reaction product of a nominal polyether diol having a number averaged molecular weight between 300 and 8000, with a stoiciometric excess of an organic monomeric base polyisocyanate having a number averaged isocyanate functionality of from 2.2 to 3.0; B) a process oil in an amount greater than 12% by weight of the prepolymer composition; and C) optionally a compatibilizing agent; wherein the prepolymer is stable with respect to bulk separation of the process oil for a period of at least 3 days at 30Â° C. in the absence of agitation.