[EN] Polyurethane insulating foams and production thereof<br/>[FR] MOUSSES ISOLANTES DE POLYURÉTHANE ET LEUR PRODUCTION
申请人:EVONIK OPERATIONS GMBH
公开号:WO2021212317A1
公开(公告)日:2021-10-28
A process is described for producing PU foams, especially rigid PU foams, based on foamable reaction mixtures containing polyisocyanates, compounds having reactive hydrogen atoms, blowing agents, foam stabilizers, and possibly further additives, wherein specific perfluoropolyethers are additionally used.