Compositions containing polyether polyols and aliphatic primary amines

摘要

A composition consisting essentially of (I) at least one polyol having an average of more than 2 hydroxyl groups per molecule and an average hydroxyl equivalent weight of at least about 500 and (II) as a chain extender composition (A) an aliphatic amine-containing material having at least one primary aliphatic amine group per molecule and (B) at least one material selected from (1) hydroxyl-containing materials, or (2) aromatic amine-containing materials. These compounds are useful in preparing polyurethane articles employing reaction injection molding technology.