Mixture for the production of acid-resistant sealing materials and impregnating materials, a process for their preparation and their use

Abstract From the Canadian patent

Mixture for the production of acid-resistant sealing materials or acid-resistant impregnating materials based on epoxy resins, resols, hardening catalysts and further customary additives, which are in the form of a cement or impregnating solution and contain as, essential constituents, A) at least one bifunctional low-molecular epoxy resin having an epoxide equivalent weight between 87 and 1,000, B) at least one resol formed from at least one trifunctional phenol and formaldehyde in a molar ratio of 1:1 to 1:3, having a viscosity between 50 and 2,500 mPa.s at 20°C and having a solids content of at least 50% by weight, and C) hardening catalysts, cements also containing D) fillers in …