摘要:
The present invention provides siliceous-based polyurea compositions, obtainable by reacting isocyanates, alkali silicates and hydratable aluminosilicates. Moreover, the present invention provides a process for the manufacture of these compositions, comprising the steps of mixing a hydratable aluminosilicate with an aqueous silicate and reacting this mixture with a polyisocyanate and/or a polyisocyanate prepolymer, optionally in the presence of a polyol and/or with the inclusion of an inert filler. Finally, the present invention provides the use of these compositions in the fields of aviation, automotive assemblies, construction, consumer products, fire protection, furniture components, insulation, shipbuilding and/or windmill construction. The compositions obtainable according to the present invention are lightweight, high load bearing, flame retarding materials.
摘要:
The invention relates to a polycondensation product comprising, as monomer components, at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde, and optionally further aromatic compounds. The invention also relates to a method for the preparation thereof, and also to the use thereof as a dispersant for aqueous suspensions of inorganic binders and as grinding auxiliary for inorganic binders.
摘要:
Use of a binder system comprising aluminum- and silicon oxide-containing compounds for producing a hydrophilic building material product, is claimed. The sum of calculated oxides as aluminum oxide and silicon dioxide in the binder system is >= 40 wt.%, based on the anhydrous binder system and the contact angle of an oil drop to the surface of the cured building material product is >= 90[deg] , where the contact angle determination is carried out under water. An independent claim is also included for a hydrophilic building material product.
摘要:
The invention relates to an alkali-activated aluminosilicate binder which contains at least one organic compound from the group of amines and/or the salts thereof, ionic liquids, imidazoles, guanidines, amino alcohols, carboxylic acid salts and alcohols with the exception of polyethers, the system, in the case of amines, containing no curable epoxies, and the system further containing no alkyl siliconates. There is no or only little shrinkage during the curing of the binder according to the invention and microcracking is avoided. The invention relates to a method for producing the alkali-activated aluminosilicate compounds according to the invention and to the use thereof.