ПЕНОПОЛИУРЕТАНЫ ИЛИ ПЕНОПОЛИИЗОЦИАНУРАТЫ, ВСПЕНЕННЫЕ ГИДРОФТОРУГЛЕРОДАМИ И ДИОКСИДОМ УГЛЕРОДА

摘要

Rigid polyurethane or polyisocyanurate foams are produced by reacting an organic polyisocyanate with an amine-based polyether polyol in the presence of a catalyst, a hydrogen-containing fluorocarbon, water and carbon dioxide.