PRODUCTION OF FOAMED SYNTHETIC RESIN

摘要

PURPOSE:To produce a high-quality foamed synthetic resin without causing a fear of the destruction of the ozone layer problem by reacting a specific active hydrogen compd. component with a polyisocyanate compd. in the presence of a specific blowing agent. CONSTITUTION:A hydrocarbon with a part or the whole of H atoms substituted with F atoms is used as the blowing agent and a polyether polyol comprising an alkylene oxide adduct of an arom. amine is used as at least a part of the active hydrogen compd. component in the process for producing a foamed synthetic resin by reacting an active hydrogen compd. component comprising active hydrogen compds. each having at least two isocyanate-reactive active hydrogen groups with a polyisocyanate compd. in the presence of a blowing agent comprising a low-boiling org. compd. Thus, it is produced a high-quality foamed synthetic resin without using a chlorofluorocarbon such as R11 which has a fear of the destruction of the ozone layer.