| 摘要 |
1307639 Proofing porous inorganic substrates CIBA-GEIGY AG 28 July 1970 [5 Aug 1969] 36586/70 Heading DIP Porous inorganic substrates, such as roadways, are protected against damage by water, salts fuel oil &c by impregnating them with self-curing, liquid compositions containing (I) a liquid di- or poly-glycidyl ether of di- or poly-(#-methylglycidyl)-ether of an aliphatic diol or polyol having from 2 to 12 carbon atoms, and (2) a cycloaliphatic or cycloaliphatic-aliphatic polyamine which is liquid at room temperature and which contains at least one primary amino group. Known curing accelerators such as phenols, Munnich bases or heterocyclic amines may optionally be added to the impregnating mixture and, in addition, penetration into the substrate may be improved by the addition of surfaceactive reagents. |
