Production of isocyanate prepolymers for one-component polyurethane systems comprises reacting difunctional isocyanate with blocking agent and difunctional alcohol

摘要

In the production of isocyanate prepolymers with blocked isocyanate end groups by reacting a difunctional isocyanate with a blocking agent and a difunctional alcohol, a portion of the isocyanate groups are reacted with the blocking agent followed by reaction with the alcohol.