Huttenes-albertus Chemische Werke Gesellschaft MIT Beschrankter Haftung

Sabrina Maria Anderten

Christian Lustig

Klaus Seeger

Lukas Mirko Reinold

Maria Schweinefuß

Edgar Müller

René Vargovic

Andreas Stefan Jattke

Marcin Baldy

Andreas Jattke

Paolo Adriano Feltrin

A coating composition is described, for use in the foundry, in particular comprising particulate, amorphous silicon dioxide (SiO) and an aqueous phase having a pH of at most 5, and also coated, waterglass-bound foundry molding elements, especially coated, waterglass-bound foundry molds and foundry cores, which each comprise a coating composition of the invention. Further described is the use of a coating composition of the invention for producing a coating on a waterglass-bound foundry molding element and a method for producing a waterglass-bound foundry molding element (mold or core) coated with a water-containing refractory coating. Likewise specified is a kit whose contents include a coating composition of the invention.

Coating composition for the foundry industry, containing particulate, amorphous silicon dioxide and acid

A description is given of a method for producing a molding material mixture or for producing a molding material mixture and a molding therefrom, preferably casting molds or cores, for use in the foundry industry, where the molding material mixture comprises a mold base material and a solution or dispersion comprising lithium-containing waterglass, comprising the following steps: (1) producing or providing a kit at least comprising as separate components: (K1) an aqueous solution or dispersion comprising waterglass and (K2a) a first waterglass-free solution or dispersion comprising lithium ions in solution in water, and also preferably (K2b) a second waterglass-free solution or dispersion, preferably comprising lithium ions in solution in water with a lower concentration than in component (K2a), and thereafter (2) producing a mixture of the mold base material with a fraction of component (K1) and with a fraction of component (K2a), and also optionally with a fraction of component (K2b). Further described is an aforementioned kit, more particularly for application in the method of the invention. An installation is specified as well for producing an intermediate solution or dispersion, comprising lithium-containing waterglass, for use in producing a molding material mixture or for producing a molding material mixture and a molding therefrom.

Method for producing a moulding material mixture and a moulded body thereof in the casting industry and kit for use in this method

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Isernhagen, Germany

Sabrina Maria Anderten