Komposittelementer inneholdende kompakte polyisocyanat polyaddisjonsprodukter

摘要

Composite elements having the following layer structure:(i) 2-20 mm of metal,(ii) 10-100 mm of compact polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) polyether polyalcohols, if desired in the presence of (c) catalysts and/or (d) auxiliaries and/or additives,(iii) 2-20 mm of metal.