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Application filed by Fraunhofer Ges ForschungfiledCriticalFraunhofer Ges Forschung
Priority to CS902200ApriorityCriticalpatent/CS220090A3/en
Publication of CS276535B6publicationCriticalpatent/CS276535B6/en
Publication of CS220090A3publicationCriticalpatent/CS220090A3/en
A gypsum foam (I) contains a polyurea (II) and has a density of 0.1-0.4 g/cm3. (II) is a condensation prod. of diphenylmethane-4,4'-diisocyanate prepolymers and contains water. (I) is open-celled and at least 80% of the pores have a dia. of 0.3-2 mm.
CS902200A1990-05-031990-05-03Plaster foamy material with a porous structure and process for producing thereof
CS220090A3
(en)