Patents by Inventor Marcus Frohn
Marcus Frohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10722938Abstract: 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. A proportion of a particulate metal oxide selected from the group consisting of silicon dioxide, aluminum oxide, titanium oxide and zinc oxide is added to the binder, particular preference being given to using synthetic amorphous silicon dioxide. The molding mixture contains a phosphate as essential constituent. The use of phosphate can improve the mechanical strength of casting molds at high thermal load.Type: GrantFiled: August 31, 2017Date of Patent: July 28, 2020Assignee: ASK CHEMICALS GMBHInventors: Jens Muller, Diether Koch, Marcus Frohn, Jorg Korschgen
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Patent number: 10232430Abstract: The invention relates to a mold material mixture for producing casting molds for metal processing, a process for producing casting molds, casting molds which can be obtained by the process and their use. The production of the casting molds is carried out using a refractory base molding 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 mold material mixture contains a surface-active material as further significant constituent. The addition of the surface-active material enables the flowability of the mold material mixture to be improved, which makes it possible to produce casting molds having a very complicated geometry.Type: GrantFiled: September 14, 2015Date of Patent: March 19, 2019Assignee: ASK Chemicals GmbHInventors: Jens Müller, Diether Koch, Marcus Frohn, Jörg Körschgen
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Publication number: 20180056374Abstract: 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. A proportion of a particulate metal oxide selected from the group consisting of silicon dioxide, aluminum oxide, titanium oxide and zinc oxide is added to the binder, particular preference being given to using synthetic amorphous silicon dioxide. The molding mixture contains a phosphate as essential constituent. The use of phosphate can improve the mechanical strength of casting molds at high thermal load.Type: ApplicationFiled: August 31, 2017Publication date: March 1, 2018Inventors: Jens Muller, Diether Koch, Marcus Frohn, Jorg Korschgen
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Patent number: 9737927Abstract: The invention relates to a method for regenerating used foundry sand, which is contaminated with soluble glass, wherein: used foundry sand is provided, which is tainted with a binding agent made of the soluble glass, to which a particle-shaped metal oxide is added; and the used foundry sand is subjected to a thermal treatment, wherein the foundry sand is heated to a temperature of at least 200° C., thereby obtaining regenerated foundry sand. The invention further relates to regenerated foundry sand, as that obtained from using the method.Type: GrantFiled: February 19, 2008Date of Patent: August 22, 2017Assignee: ASK Chemicals GmbHInventors: Diether Koch, Jens Müller, Marcus Frohn
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Publication number: 20160059301Abstract: 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.Type: ApplicationFiled: September 14, 2015Publication date: March 3, 2016Applicant: ASK Chemicals GmbHInventors: Jens Müller, Diether Koch, Marcus Frohn, Jörg Korschgen
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Patent number: 8919421Abstract: A method for producing cores and molds for the foundry industry utilizing a flowable fire-resistant primary molding material. The method includes an acid applied to the flowable fire resistant primary molding material to obtain an acid-coated fire-resistant primary molding material. A binder that can be cured by acid is applied to the acid-coated fire resistant primary molding material to obtain a fire-resistant primary molding material coated with a binder. The fire-resistant primary molding material coated with a binder is then molded into a molded body, and-the molded body is cured. The acid used is a mixture of methane sulfonic acid and at least one sulfur-free acid. The casting molds can be produced having reduced emission of harmful compounds during casting.Type: GrantFiled: May 22, 2009Date of Patent: December 30, 2014Assignee: ASK Chemicals GmbHInventors: Marcus Frohn, Diether Koch, Antoni Gieniec
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Publication number: 20110073269Abstract: The invention relates to a method for producing cores and molds for the foundry industry, wherein—a flowable fire-resistant primary molding material is provided. An acid is applied to the flowable fire resistant primary molding material, thus obtaining an acid-coated fire-resistant primary molding material. A binder that can be cured by acid is applied to the acid-coated fire resistant primary molding material, thus obtaining a fire-resistant primary molding material coated with a binder. The fire-resistant primary molding material coated with a binder is molded into a molded body, and-the molded body is cured, wherein the acid is a mixture of methane sulfonic acid and at least one further sulfur-free acid. The invention further relates to a mold material mixture as it is used in said method. With the method or the mold material mixture, casting molds can be produced having reduced emission of harmful compounds during casting.Type: ApplicationFiled: May 22, 2009Publication date: March 31, 2011Applicant: ASHLAND-SUDCHEMIE-KERNFEST GmbHInventors: Marcus Frohn, Diether Koch, Antoni Gieniec
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Publication number: 20100326620Abstract: 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.Type: ApplicationFiled: October 30, 2008Publication date: December 30, 2010Applicant: ASHLAND-SÜDCHEMIE-KERNFEST GMBHInventors: Jens Müller, Diether Koch, Marcus Frohn, Jörg Körschgen
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Publication number: 20100294454Abstract: 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. A proportion of a particulate metal oxide selected from the group consisting of silicon dioxide, aluminum oxide, titanium oxide and zinc oxide is added to the binder, particular preference being given to using synthetic amorphous silicon dioxide. The molding mixture contains a phosphate as essential constituent. The use of phosphate can improve the mechanical strength of casting molds at high thermal load.Type: ApplicationFiled: October 19, 2007Publication date: November 25, 2010Applicant: ASHLAND-SUDCHEMIE-KERNFEST GMBHInventors: Jens Muller, Diether Koch, Marcus Frohn, Jorg Korschgen
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Publication number: 20100224756Abstract: The invention relates to a molding material mixture for production of casting molds for metalworking, to a process for producing casting molds, to casting molds obtained by the process and to the use thereof. For the production of casting molds, a refractory molding matrix and a waterglass-based binder are used. The binder has been admixed with a proportion of a particulate metal oxide which is selected from the group of silicon dioxide, aluminum oxide, titanium oxide and zinc oxide, particular preference being given to using synthetic amorphous silicon dioxide. The molding material mixture comprises a carbohydrate as a further essential constituent. The addition of carbohydrates allows the mechanical strength of casting molds and the surface quality of the casting to be improved.Type: ApplicationFiled: October 19, 2007Publication date: September 9, 2010Applicant: ASHLAND-SUDCHEMIE-KERNFEST GMBHInventors: Jens Muller, Diether Koch, Marcus Frohn, Jorg Korschgen, Stefan Schreckenberg
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Publication number: 20100173767Abstract: The invention relates to a method for regenerating used foundry sand, which is contaminated with soluble glass, wherein: used foundry sand is provided, which is tainted with a binding agent made of the soluble glass, to which a particle-shaped metal oxide is added; and the used foundry sand is subjected to a thermal treatment, wherein the foundry sand is heated to a temperature of at least 200° C., thereby obtaining regenerated foundry sand. The invention further relates to regenerated foundry sand, as that obtained from using the method.Type: ApplicationFiled: February 19, 2008Publication date: July 8, 2010Inventors: Diether Koch, Jens Müller, Marcus Frohn