LIANTS CONTENANT DES ESTERS DE L'ACIDE TITANIQUE POUR MASSES DE REVETEMENT ET PRODUITS REFRACTAIRES, ET PROCEDE DE PREPARATION DE CES LIANTS

摘要

The present invention relates to binding agents for coating compositions which can be used for making foundry molds. The new compositions contain known polymeric titanic acid esters which are treated with chelating agents. The preferred chelating agents are beta-dioxo compounds. The chelating agents are contained in the binding agent in amounts between 0.2 and 1 gram molecule per gram atom of titanium. The new binding agents can be prepared in a simple manner from titanic acid esters, water and the chelating agent, the amount of water being selected in accordance with the degree of condensation desired in the polymeric titanic acid ester.