Aqueous preparation and its use in the production of ceramic compositions

摘要

An aqueous preparations of a gel-like consistency, containing (a) oils in quantities of from 0.03 to 30% by weight, (b) water-soluble or swellable vinyl polymers in quantities of from 0.2 to 10% by weight, (c) water-soluble or swellable polymers based on natural substances in quantities of from 0.01 to 5% by weight, (d) surfactants in quantities of from 0.01 to 2% by weight and optionally (e) inorganic or organic powders in quantities of from 0.5 to 30% by weight. The aqueous preparation is useful as a porosifying agent in the production of porous ceramic bodies.