Polymer polyols from partially reacted polyamines

摘要

A polymer polyol made by the reaction of a partially reacted polyamine with an organic polyisocyanate in a polyether polyol solvent of about 3,000 to 8,000 molecular weight is disclosed. Preferably, the polyisocyanate is reacted with a partially alkoxylated polyoxyalkylenediamine. This polymer polyol may be used in the manufacture of flexible polyurethane foams with improved properties. The polymer polyols are more stable than those made by other procedures.