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Ask Chemicals Gmbh patents


Recent patent applications related to Ask Chemicals Gmbh. Ask Chemicals Gmbh is listed as an Agent/Assignee. Note: Ask Chemicals Gmbh may have other listings under different names/spellings. We're not affiliated with Ask Chemicals Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Ask Chemicals Gmbh-related inventors


Ceramic filter and method for forming the filter

A filter element, useful for filtering molten metals and the like, is made from a precursor or template (10) having at least two layers (20). Each layer is assembled from three-dimensional geometric cages (22), joined in fixed relationship to each other: some embodiments include a peripheral member (26) that encompasses the layer. ... Ask Chemicals Gmbh

Binder system for reduced metal mold reaction

A binder system for refractory materials used in sand casting processes, especially two-part polyurethane-based binder systems used in the cold box or no bake process, has less metal-mold reaction when a separate third part is used. The third part is an alkyl silicate, such as tetraethyl orthosilicate (“teos”), an alkyl orthoformate, such as trimethyl orthoformate (tmof) or triethyl orthoformate (teof), or combinations thereof.. ... Ask Chemicals Gmbh

Three component polyurethane binder system

An organic binder system is mixed with molding material for sand casting in the metals industry. The organic binder system has three parts, the first two of which are conventional and are used in the cold box or no bake process. ... Ask Chemicals Gmbh

Process for casting nonferrous metals including light metals and casting mold

The invention relates to a molding mixture for producing casting molds for metalworking, a process for producing casting molds, casting molds obtained by the process and also their use. To produce the casting molds, a refractory mold raw material and a binder based on water glass are used. ... Ask Chemicals Gmbh

Molding materials for non-ferrous casting

A molding material mixture for producing casting molds for metal processing, particularly for non-ferrous metals, such as aluminum or magnesium, is intended to reduce problems such as metal-mold reaction and/or shrinkage porosity defect. The free-flowing refractory molding material in the molding material mixture is coated with a mixture of inorganic salts exhibiting a eutectic melting point in the range of about 400 c to about 500 c, particularly in the range of about 420 c to about 460 c. ... Ask Chemicals Gmbh

Method for constructing molds and cores layer by layer by means of a binder containing water glass, and a binder containing water glass

The invention relates to a binder, which contains water glass and further a phosphate or a borate or both. The invention further relates to a method for constructing molds and cores layer by layer, the molds and cores comprising a construction material mixture, which at least comprises a refractory molding base material, and the binder. ... Ask Chemicals Gmbh

Co-catalysts for polyurethane cold box binders

The subject matter of the present invention is a binder system containing blocked tertiary amines or amidines as co-catalysts for a polyurethane cold-box application. It also relates to the molding material mixtures produced using such a binder system further comprising volatile tertiary amines, a method for producing the molding material mixtures, and the cores and molds made from the molding material mixtures according to the cold-box process.. ... Ask Chemicals Gmbh

Insertable riser base, sand mould, moulding device consisting of the insertable riser base and the sand mould, and method for producing the moulding device

The riser base is an insert obtained by manual moulding or by blowing having an insulating or exothermal composition. The composition includes hollow microspheres of aluminium silicate. ... Ask Chemicals Gmbh

Method for the layer-wise building of bodies comprising refractory mold base material and resoles, and molds or cores manufactured according to said method

The invention relates to a method for the layer-wise building of bodies comprising a refractory mold base material and resoles, to three-dimensional bodies manufactured according to said method, and to the use thereof in metal casting. According to the method, the refractory mold base material is contacted with at least one ester to obtain an ester-impregnated mold material mixture.. ... Ask Chemicals Gmbh

Casting sleeve with williams core

A sleeve (110) for use in metal casting has a sleeve body, where a longitudinal axis (b) has a side wall (116) formed around it, defining a sleeve interior. The sleeve body is open at a first end (118). ... Ask Chemicals Gmbh

Mould material mixture containing resols and amorphous silicon dioxide, moulds and cores produced therefrom and method for the production thereof

The invention relates to mold material mixtures for producing molds and cores for metal casting, consisting of at least one refractory material, a binder based on resols and amorphous silicon dioxide. The invention also relates to a multicomponent system and methods for producing molds and cores using the mold material mixtures as well as molds and cores for metal casting produced according to this method.. ... Ask Chemicals Gmbh








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