VERFAHREN ZUR HERSTELLUNG VON FORMSTABILEN EINKOMPONENTENPOLYURETHANSCHAUMSTOFFEN

摘要

1. A process for the manufacture of dimensionally stable polyurethane foams by releasing, and curing by interaction with the atmosphere preferably with atmospheric moisture, a storage-stable mixture, which contains blowing agents and is under pressure, of prepolymers which contain isocyanate groups and are based on polyols and organic polyisocyanates, wherein the polyols used are difunctional to octafunctional polyester-polyols and/or polyether-polyols which have a hydroxyl number of from 40 to 500 and contain chemically bonded tertiary amino groups in the polymer chain, or mixtures of such polyester-polyols and/or polyeter-polyols, containing tertiary amino groups, with nitrogen-free polyester-polyols and/or polyether-polyols.