Patents by Inventor Matthias Buri

Matthias Buri 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).

  • Publication number: 20150315366
    Abstract: The present invention relates to high solids aqueous mineral and/or filler and/or pigment suspensions in acidic pH environment, to a method for producing such high solids aqueous mineral and/or filler and/or pigment suspension to the use of the high solids aqueous mineral and/or filler and/or pigment suspension in paper making, paper coating, plastic, agricultural and/or paint applications and as filler in paper and to a coating color formulation comprising the high solids aqueous mineral and/or filler and/or pigment suspension.
    Type: Application
    Filed: June 7, 2013
    Publication date: November 5, 2015
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane
  • Patent number: 9163147
    Abstract: The present disclosure describes methods for improving the auto-dispersant characteristic in water of mineral substances, such methods involving dry-grinding of a mineral substance in the presence of a formulation. In some embodiments the formulation includes glycerol and at least one agent in aqueous or pure form. In other embodiments the formulation includes an aqueous polyglycerol.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 20, 2015
    Assignees: COATEX S.A.S., OMYA INTERNATIONAL AG
    Inventors: Murielle Guillot, Denis Ruhlmann, Matthias Buri
  • Publication number: 20150284530
    Abstract: The present invention consists of a process of preparation of at least one mineral matter and/or of at least one pigment, including a calcium carbonate made at once partially organophilic and partially hydrophilic, in which the carbonate is blended and/or ground and/or concentrated in an aqueous medium, in the presence of at least one salt of ethylene acrylic acid, one dispersing agent and/or one grinding aid agent, which is introduced before and/or during this treatment stage. Another object of the invention lies in the aqueous dispersions and suspensions of calcium carbonate thus obtained. They may be dried and the dry pigments obtained also constitute an object of the invention. Use of these aqueous dispersions and these dry pigments in the field of plastic, paints and paper constitutes another object of the invention.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 8, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C Gane, Philipp Hunziker, René Burkhalter, Beat Karth
  • Patent number: 9139735
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 22, 2015
    Assignee: Omya International AG
    Inventors: Matthias Buri, Patrick A. C. Gane, Samuel Rentsch, René Burkhalter
  • Patent number: 9139734
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)-or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: September 22, 2015
    Assignee: Omya International AG
    Inventors: Matthias Buri, Patrick A. C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150240056
    Abstract: The present invention relates to a process for preparing a surface treated filler material product with succinic anhydride(s), a surface treated filler material product, a polymer composition, a fiber and/or filament and/or film and/or thread comprising the surface treated filler material product and/or the polymer composition, an article comprising the surface treated filler material product and/or the polymer composition and/or the fiber and/or filament and/or film and/or thread as well as the use of a mono-substituted succinic anhydride for decreasing the hydrophilicity of a calcium carbonate-containing filler material surface and the use of a surface-treated filler material product for initiating the crosslinking reaction in epoxide resins.
    Type: Application
    Filed: October 10, 2013
    Publication date: August 27, 2015
    Inventors: Samuel Rentsch, Matthias Buri, René Vinzenz Blum, Martin Brunner, Patrick A.C. Gane
  • Patent number: 9107406
    Abstract: The present invention refers to a process for bacterial stabilizing aqueous preparations like e.g. calcium carbonate slurries and a composition which can be used for the biocidal treatment of such aqueous preparations.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 18, 2015
    Assignee: Omya International AG
    Inventors: Nicola Di Maiuta, Patrick Schwarzentruber, Matthias Buri, Patrick Arthur Charles Gane
  • Publication number: 20150210103
    Abstract: The present invention concerns a print medium and a method of producing such a print medium. In particular, the present invention is directed to a print medium comprising a substrate having a first and a reverse side, and at least one coating layer on of the substrate sides.
    Type: Application
    Filed: September 19, 2013
    Publication date: July 30, 2015
    Applicant: Omya International AG
    Inventors: Jan Philipp Weihs, Oliver Patrick Grossmann, Matthias Buri, Philipp Hunziker, Patrick A.C. Gane, Daniel Gantenbein
  • Publication number: 20150203653
    Abstract: The present invention concerns a rheologically stable aqueous mineral material suspension comprising a) at least one mineral material, and b) at least one polymer of acrylic and/or methacrylic acid, wherein the at least one polymer of acrylic and/or methacrylic acid is obtained by polymerization of acrylic and/or methacrylic acid monomer(s) in water using a compound of the formula (I) wherein X represents Li, Na, K or H, and R represents an alkyl chain comprising 1 to 5 carbon atoms, and the compound of formula (I) is used in an amount of from 0.1 to 2.5 wt. % based on the weight of said monomer(s); has a weight molecular weight Mw of from 800 to 8000 g/mol; a polydispersity index Ip in the range from 2 to 3; and wherein the aqueous mineral material suspension has a content of volatile organic compounds (VOC) of ?20 mg/kg, as well as their preparation process and uses thereof.
    Type: Application
    Filed: September 20, 2013
    Publication date: July 23, 2015
    Inventors: Samuel Rentsch, Matthias Buri, Patrick A.C. Gane
  • Publication number: 20150175772
    Abstract: The present invention concerns a calcium carbonate containing material having increased bulk density at equal or improved flowability, and a method of producing such a material. The inventive process comprises the step of contacting a calcium carbonate containing mineral powder with a solution or emulsion or dispersion of a binder.
    Type: Application
    Filed: March 9, 2015
    Publication date: June 25, 2015
    Applicant: Omya International AG
    Inventors: Patrick A.C. Gane, Matthias Buri, René Vinzenz Blum, Samuel Rentsch
  • Publication number: 20150135995
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150141564
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150141565
    Abstract: The present invention relates to a process for preparing a surface treated mineral filler product, and to its preferred use in the field of plastic applications, and in particular polypropylene (PP)- or polyethylene (PE)-based breathable or extrusion coating film applications.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Applicant: Omya International AG
    Inventors: Matthias Buri, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter
  • Publication number: 20150141551
    Abstract: The present invention concerns aqueous slurries with improved rheo logical stability under increased temperature. The slurries comprise a calcium carbonate containing material and at least one comb polymer.
    Type: Application
    Filed: July 10, 2013
    Publication date: May 21, 2015
    Inventors: Samuel Rentsch, Matthias Buri, Patrick A.C. Gane
  • Publication number: 20150128830
    Abstract: The present invention relates to an aqueous suspension of mineral pigment materials having high solids content, which contain dispersing agents and/or grinding agents based on renewable sources, and methods for preparing such a suspension and its use.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 14, 2015
    Inventors: Patrick A.C. Gane, Matthias Buri, Samuel Rentsch, Cécile Ganneau
  • Patent number: 9029448
    Abstract: The invention relates to the preparation of an aqueous suspension of mineral matter by dispersion and/or grinding in the presence of at least one amine and one vinyl-carboxylic polymer, with the amine allowing to reduce the amount of the polymer and the use of the resulting suspension.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: May 12, 2015
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Matthias Buri, Samuel Rentsch
  • Patent number: 9017518
    Abstract: The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: April 28, 2015
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane, Daniel Gantenbein, Joachim Schölkopf
  • Patent number: 9017519
    Abstract: The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: April 28, 2015
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane, Daniel Gantenbein, Joachim Schölkopf
  • Patent number: 9017631
    Abstract: Process to prepare a precipitated calcium carbonate (PCC) comprising the following steps: (i) providing CaO, which is optionally partially or fully slaked (hereafter “calcium source”); ({umlaut over (?)}) providing a CO2-comprising gas; ({umlaut over (?)}i) contacting said calcium source of step (i) and said CO2-comprising gas of step (ii) in an aqueous environment in a reactor, in one or more steps; (iv) obtaining a PCC-comprising suspension; (v) optionally concentrating said PCC-comprising suspension of step (iv); (vi) optionally adding dispersing additives to the suspension of step (iv) and/or (v); (vii) optionally grinding the product of step iv, v or vi.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: April 28, 2015
    Assignee: Omya International AG
    Inventors: Patrick Arthur Charles Gane, Matthias Buri, Michael Pohl
  • Patent number: 9012554
    Abstract: The present invention relates to the use of surface modified calcium carbonate as a filler in adhesives, sealants, and/or caulks, wherein the surface modified calcium carbonate is a mineral pigment product formed in situ by the double and/or multiple reaction between a calcium carbonate and the reaction product or products of the said carbonate with gaseous CO2 formed in situ and/or coming from an external supply, and the reaction product or products of the said carbonate with one or more moderately strong to strong H3O+ ion donors, and at least one aluminum silicate and/or at least one synthetic silica and/or at least one calcium silicate and/or at least one silicate of a monovalent salt and/or at least one aluminum hydroxide and/or at least one sodium and/or potassium aluminate. It further relates to method of producing adhesives, sealants, and/or caulks comprising surface modified calcium carbonate, as well as to the adhesives, sealants, and/or caulks obtained by this process.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: April 21, 2015
    Assignee: Omya International AG
    Inventors: George Saunders, Joseph McJunkins, Matthias Buri, Patrick A. C. Gane