Abstract: The invention relates to a casting mould for the casting of metals, wherein a layer consisting of a material which absorbs harmful substances on at least sections of gas outlet surfaces of the casting mould, in particular the top side thereof. The invention also relates to a coating composition, to a process for producing the casting mould and to the use thereof for casting of metals.

Abstract: The invention relates to a size composition (coating composition) for casting moulds and cores, comprising at least one metal additive which contains a metal or a compound of a metal, wherein the metal is selected from one of groups 7 or 9 to 12 of the Periodic Table of the Elements. The invention also relates to a process for producing a casting mould, which comprises a mould coating of the size (coating) according to the invention, and to the use of said mould for the casting of metals.

Abstract: A process for producing a mold includes introducing a composition including a particulate, refractory material and a binder into a hollow model having an interior cavity which determines contours of all surfaces of the mold or a mold part, wherein the model includes at least two separate parts to permit removal of the mold, and applying a second composition containing at least one organosilicon component and at least one solvent to at least one of the separable parts before use.

Abstract: The invention relates to a mould material mixture for producing casting moulds for metal processing, a process for producing casting moulds, casting moulds which can be obtained by the process and their use. The production of the casting moulds is carried out using a refractory base moulding material and a binder based on water glass. A proportion of a particulate metal oxide selected from the group consisting of silicon dioxide, aluminium oxide, titanium oxide and zinc oxide is added to the binder, with particular preference being given to using synthetic amorphous silicon dioxide. The mould material mixture contains a surface-active material as further significant constituent. The addition of the surface-active material enables the flowability of the mould material mixture to be improved, which makes it possible to produce casting moulds having a very complicated geometry.

Abstract: The present invention relates to a coating and a method for producing a casting mold. The method provides for castings whereby gas defects are largely or completely suppressed.

Abstract: The present invention relates to the radical cold curing of synthetic resins based on poly(meth)acrylate-urethane(meth)acrylates in urethane(meth)acrylates and optionally (meth)acrylates and/or reactive diluents using suitable additives, and also the use of these radically cold-curable synthetic resins as binding agents in radically cold-curable mixtures, as well as the organic synthetic glasses/plastics, synthetic glass/plastic workpieces and composite materials and workpieces obtained from these mixtures by radical cold curing, and also the production and use of these same mixtures, organic synthetic glasses/plastics, synthetic glass/plastic workpieces and composite materials and workpieces.

Abstract: The present invention relates to wash compositions which comprise a solvent component and a solids component wherein the solvent component comprises as main component water or one or more alcohols, and the solids component comprises as main component a mixture of metakaolinite and pyrophyllite, which can be applied onto casting moulds, casting moulds comprising these wash compositions and the use thereof, in particular in centrifugal casting processes and large-scale casting processes.

Abstract: A two-component water paint system that allows reliable formation of essentially bubble-free paint films having a thickness of at least 120 &mgr;m. The water paint system comprises an aqueous emulsion of a hydroxy-functional alkyd resin wherein the hydroxy-functional alkyd resin can be obtained from an oleic or fatty acid component, a polyvalent alcohol, a polyether polyol having a molecular weight of 400 to 8,000, a monobasic carboxylic acid and a polycarboxylic acid or the anhydride thereof.