Patents by Inventor Frank Mersch
Frank Mersch 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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Publication number: 20230374328Abstract: The invention relates to a pigment particle possessing at least one security feature, a method for obtaining the same, and a suspension comprised of the pigment particle. In addition, the invention refers to a method for marking a product with a pigment particle according to the invention and the use of a pigment particle for marking and verifying said pigment particle.Type: ApplicationFiled: May 22, 2023Publication date: November 23, 2023Applicant: Kronos International, Inc.Inventors: Mitja Medved, Frank Mersch, Norberto Bendzko
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Publication number: 20230250295Abstract: The invention relates to a colored pigment particle, a method for obtaining said colored pigment particle, and a composition comprised of said particle. In addition, the invention refers to the use of said colored pigment particle.Type: ApplicationFiled: February 6, 2023Publication date: August 10, 2023Applicant: Kronos International, Inc.Inventors: Norbert Bendzko, Frank Mersch
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Publication number: 20230250302Abstract: The invention relates to a color-neutral rutile pigment particle, a method for obtaining said pigment particle, and a composition comprised of said rutile pigment particle. Finally, the invention refers to the use of the rutile pigment particle in various applications.Type: ApplicationFiled: February 6, 2023Publication date: August 10, 2023Applicant: Kronos International, Inc.Inventors: Norbert Bendzko, Frank Mersch
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Patent number: 10738194Abstract: The invention relates to composite pigment particles containing calcium phosphate, their manufacture and their use in coatings, plastics and laminates. The composite pigment particles contain titanium dioxide pigment particles and precipitated calcium phosphate. In one embodiment, the composite pigment particles additionally contain an inorganic and/or organic filler as an extender, preferably selected from the group comprising Ca, Ca—Mg and Mg carbonates, natural and synthetic silicon dioxide and oxides. The composite pigment particles are manufactured in a combined process of dispersion and precipitation. Depending upon the combination selected, use of composite titanium dioxide pigment particles of the invention can provide improved optical properties such as tinting strength or permits pigment savings with little to no loss of optical properties. In particular, the composite pigment particles of the invention can be used to replace part or all of the titanium dioxide contained in the user's system.Type: GrantFiled: December 8, 2014Date of Patent: August 11, 2020Inventors: Frank Mersch, Uwe Wilkenhoener
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Patent number: 10662335Abstract: The invention relates to the manufacture of composite pigments containing aluminum hydroxide, and their use for improving the pigment light-scattering efficiency in coatings, plastics, paper and laminates. The composite pigment particles contain pigment particles such as titanium dioxide and precipitated aluminum hydroxide and are manufactured by in-situ precipitation of aluminum hydroxide in an aqueous pigment particle suspension. Use of the composite pigment particles according to the invention, based on titanium dioxide, permits savings on pigment with little or no loss of optical properties. Alternatively, if the pigment content remains unchanged, it is also possible to achieve better optical properties.Type: GrantFiled: March 10, 2016Date of Patent: May 26, 2020Inventors: Frank Mersch, Uwe Wilkenhoener
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Patent number: 10533102Abstract: The invention relates to a pigment composition for preparing pigmented matt coatings, such as matt paints and printing inks. Further, the invention relates to a process for preparing such pigment composition, and to a coating formulation containing such composition. Finally, the invention is directed to a pigmented matt surface of a substrate, and to the use of the pigment compositions disclosed herein for matting substrates.Type: GrantFiled: February 1, 2017Date of Patent: January 14, 2020Assignee: Kronos International, Inc.Inventors: Frank Mersch, Volker Juergens
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Publication number: 20170218210Abstract: The invention relates to a pigment composition for preparing pigmented matt coatings, such as matt paints and printing inks. Further, the invention relates to a process for preparing such pigment composition, and to a coating formulation containing such composition. Finally, the invention is directed to a pigmented matt surface of a substrate, and to the use of the pigment compositions disclosed herein for matting substrates.Type: ApplicationFiled: February 1, 2017Publication date: August 3, 2017Inventors: Frank Mersch, Volker Juergens
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Publication number: 20160264786Abstract: The invention relates to the manufacture of composite pigments containing aluminum hydroxide, and their use for improving the pigment light-scattering efficiency in coatings, plastics, paper and laminates. The composite pigment particles contain pigment particles such as titanium dioxide and precipitated aluminum hydroxide and are manufactured by in-situ precipitation of aluminum hydroxide in an aqueous pigment particle suspension. Use of the composite pigment particles according to the invention, based on titanium dioxide, permits savings on pigment with little or no loss of optical properties. Alternatively, if the pigment content remains unchanged, it is also possible to achieve better optical properties.Type: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Inventors: Frank Mersch, Uwe Wilkenhoener
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Patent number: 9096762Abstract: The invention relates to a method for the surface treatment of inorganic pigment particles with agglomerates of fine primary particles or single crystals of inorganic compounds, particularly of oxides or sulphates. The method is characterized in that the inorganic compounds are first precipitated from an aqueous solution under suitable pH conditions in a separate vessel in the form of fluffily structured agglomerates and/or single crystals. The precipitation product is subsequently added to an aqueous suspension of inorganic pigment particles. The method is particularly suitable for the surface treatment of titanium dioxide particles, in order to achieve high hiding power or high opacity when used in emulsion paints or laminates.Type: GrantFiled: August 1, 2014Date of Patent: August 4, 2015Assignee: Kronos International, Inc.Inventors: Volker Juergens, Alexander Breyder, Frank Mersch, Siegfried Bluemel, Volker Schmitt
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Publication number: 20150166793Abstract: The invention relates to composite pigment particles containing calcium phosphate, their manufacture and their use in coatings, plastics and laminates. The composite pigment particles contain titanium dioxide pigment particles and precipitated calcium phosphate. In one embodiment, the composite pigment particles additionally contain an inorganic and/or organic filler as an extender, preferably selected from the group comprising Ca, Ca—Mg and Mg carbonates, natural and synthetic silicon dioxide and oxides. The composite pigment particles are manufactured in a combined process of dispersion and precipitation. Depending upon the combination selected, use of composite titanium dioxide pigment particles of the invention can provide improved optical properties such as tinting strength or permits pigment savings with little to no loss of optical properties. In particular, the composite pigment particles of the invention can be used to replace part or all of the titanium dioxide contained in the user's system.Type: ApplicationFiled: December 8, 2014Publication date: June 18, 2015Inventors: Frank Mersch, Uwe Wilkenhoener
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Publication number: 20140338566Abstract: The invention relates to a method for the surface treatment of inorganic pigment particles with agglomerates of fine primary particles or single crystals of inorganic compounds, particularly of oxides or sulphates. The method is characterized in that the inorganic compounds are first precipitated from an aqueous solution under suitable pH conditions in a separate vessel in the form of fluffily structured agglomerates and/or single crystals. The precipitation product is subsequently added to an aqueous suspension of inorganic pigment particles. The method is particularly suitable for the surface treatment of titanium dioxide particles, in order to achieve high hiding power or high opacity when used in emulsion paints or laminates.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Applicant: Kronos International, Inc.Inventors: Volker Juergens, Alexander Breyder, Frank Mersch, Siegfried Bluemel, Volker Schmitt
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Patent number: 8858701Abstract: The invention relates to the manufacture of pigment-containing composite pigment particles containing titanium dioxide pigment particles and at least one inorganic and/or organic filler as extender, as well as calcium carbonate that is precipitated in the process, and their use for improving the pigment light-scattering efficiency in coatings, plastics and laminates. The extender is preferably selected from Ca-, Ca—Mg- and Mg-carbonates, natural and synthetic silicon dioxide and oxides and are manufactured in a combined process of precipitation and dispersion. Depending on the combination selected, the use of composite pigment particles according to the invention permits pigment savings with little or no loss of optical properties. Alternatively, if the pigment content remains unchanged, it is possible to achieve better values, e.g. for tinting strength. Particularly, a part or the whole TiO2 quantity in the user system can be replaced by the composite pigment particles according to the invention.Type: GrantFiled: June 28, 2013Date of Patent: October 14, 2014Assignee: Kronos International, Inc.Inventors: Uwe Wilkenhoener, Frank Mersch
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Patent number: 8845803Abstract: The invention relates to a method for the surface treatment of inorganic pigment particles with agglomerates of fine primary particles or single crystals of inorganic compounds, particularly of oxides or sulphates. The method is characterized in that the inorganic compounds are first precipitated from an aqueous solution under suitable pH conditions in a separate vessel in the form of fluffily structured agglomerates and/or single crystals. The precipitation product is subsequently added to an aqueous suspension of inorganic pigment particles. The method is particularly suitable for the surface treatment of titanium dioxide particles, in order to achieve high hiding power or high opacity when used in emulsion paints or laminates.Type: GrantFiled: June 28, 2013Date of Patent: September 30, 2014Assignee: Kronos International, Inc.Inventors: Volker Juergens, Alexander Breyder, Frank Mersch, Siegfried Bluemel, Volker Schmitt
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Publication number: 20140000483Abstract: The invention relates to a method for the surface treatment of inorganic pigment particles with agglomerates of fine primary particles or single crystals of inorganic compounds, particularly of oxides or sulphates. The method is characterized in that the inorganic compounds are first precipitated from an aqueous solution under suitable pH conditions in a separate vessel in the form of fluffily structured agglomerates and/or single crystals. The precipitation product is subsequently added to an aqueous suspension of inorganic pigment particles. The method is particularly suitable for the surface treatment of titanium dioxide particles, in order to achieve high hiding power or high opacity when used in emulsion paints or laminates.Type: ApplicationFiled: June 28, 2013Publication date: January 2, 2014Applicant: Kronos International, Inc.Inventors: Volker Juergens, Alexander Breyder, Frank Mersch, Siegfried Bluemel, Volker Schmitt
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Publication number: 20140000484Abstract: The invention relates to the manufacture of pigment-containing composite pigment particles containing titanium dioxide pigment particles and at least one inorganic and/or organic filler as extender, as well as calcium carbonate that is precipitated in the process, and their use for improving the pigment light-scattering efficiency in coatings, plastics and laminates. The extender is preferably selected from Ca-, Ca—Mg- and Mg-carbonates, natural and synthetic silicon dioxide and oxides and are manufactured in a combined process of precipitation and dispersion. Depending on the combination selected, the use of composite pigment particles according to the invention permits pigment savings with little or no loss of optical properties. Alternatively, if the pigment content remains unchanged, it is possible to achieve better values, e.g. for tinting strength. Particularly, a part or the whole TiO2 quantity in the user system can be replaced by the composite pigment particles according to the invention.Type: ApplicationFiled: June 28, 2013Publication date: January 2, 2014Inventors: Uwe Wilkenhoener, Frank Mersch
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Publication number: 20080259315Abstract: A method for indicating a certain UV radiation dose, using a mixture of substances, containing a substance of defined UV photoactivity, a redox dye and a substance acting as a sacrificial electron donor, exposing the mixture to UV radiation and detecting a defined color change when a certain UV radiation dose is reached.Type: ApplicationFiled: March 31, 2008Publication date: October 23, 2008Inventor: Frank Mersch