processes for the production of finely cellular rigid polyurethane and / or polyisocyanurate foams, use of the foam produced by said processes and molded polyurethane or polyisocyanurate foam.

摘要

The invention relates to a method for producing water-driven, fine-cell rigid foams containing urethane and/or isocyanurate groups by reacting polyisocyanates with a polyol component in the form of an emulsion. The invention also relates to foam-mouldable open-cell polyurethane foams.