親水性建築資材を製造するための酸化アルミニウム及び酸化ケイ素を含有するコンパウンドの使用

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.