Patents by Inventor Samuel Rentsch

Samuel Rentsch 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: 20170349759
    Abstract: The present invention relates to an installation for the purification of minerals, pigments and/or fillers and/or the preparation of precipitated earth alkali carbonate and/or mineralization of water and to the use of such an installation for the purification of minerals, pigments and/or fillers and/or mineralization of water and/or the preparation of precipitated earth alkali carbonate.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane, René Vinzenz Blum
  • Patent number: 9783682
    Abstract: The present invention relates to an earth alkali carbonate-containing filler material having a volatile onset temperature of ?350° C., which is at least partially surface modified by using at least one polyhydrogensiloxane for increasing the hydrophobicity and/or decreasing the moisture pick up, a process for preparing such a surface modified earth alkali carbonate-containing filler material, a fibre and/or filament and/or film and/or thread and/or breathable film comprising the surface modified earth alkali carbonate-containing filler material as well as an article comprising the surface modified earth alkali carbonate-containing filler material and/or the fibre and/or filament and/or film and/or thread and/or breathable film, preferably its use in polyester products.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: October 10, 2017
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Fabio Ippolito, Patrick A. C. Gane
  • Publication number: 20170275175
    Abstract: The present invention relates to a process to modify at least part of the surface of an earth alkaline metal carbonate-containing material in a dry blending process as well as to a mineral product obtainable by the inventive process and uses thereof.
    Type: Application
    Filed: September 3, 2015
    Publication date: September 28, 2017
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane, René Vinzenz Blum
  • Patent number: 9745475
    Abstract: The present invention relates to the use of a new polymeric aqueous emulsion for surface treating particles of mineral matter.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: August 29, 2017
    Assignees: COATEX, OMYA INTERNATIONAL AG
    Inventors: Denis Ruhlmann, Olivier Guerret, Jacques Mongoin, Joe McJunkins, Djillali Foual, Marc Feller, Samuel Rentsch
  • Publication number: 20170240746
    Abstract: The present invention relates to a process for the production of a mineral filler product comprising a step of dry grinding a calcium carbonate-containing material in the presence of an agent being a polyol. The mineral filler product according to the present invention was found to have a reduced moisture pickup as compared to prior art products.
    Type: Application
    Filed: April 15, 2015
    Publication date: August 24, 2017
    Applicant: Omya International AG
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Welker, Patrick A.C. Gane
  • Patent number: 9725600
    Abstract: The present invention relates to an aqueous calcium carbonate containing composition, to methods for producing such aqueous calcium carbonate containing compositions and to the use of the aqueous calcium carbonate containing composition in paper, paper coating, plastics and/or paint applications and as filler in paper.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: August 8, 2017
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Daniel E. Gerard, Matthias Buri, Patrick A. C. Gane, Vesa Kukkamo
  • Publication number: 20170218148
    Abstract: The present invention relates to a breathable film comprising at least one thermoplastic polymer and a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof, a process for producing the same, and the use thereof. Furthermore, the present invention is directed to the use of a surface-treated filler material product comprising a treatment layer comprising at least one mono-substituted succinic anhydride and/or at least one mono-substituted succinic acid and/or salty reaction product(s) thereof in breathable films.
    Type: Application
    Filed: August 12, 2015
    Publication date: August 3, 2017
    Inventors: Martin Brunner, René Burkhalter, Tazio Fornera, Samuel Rentsch, Michael Tinkl, Francesco Pullega
  • Publication number: 20170204536
    Abstract: The present invention concerns a multifilament fibre comprising at least one polymer comprising a polyester, and at least one filler comprising calcium carbonate. The present invention further relates to a process of producing such a multifilament fibre as well as the use of calcium carbonate as filler in a multifilament fibre comprising at least one polymer comprising a polyester.
    Type: Application
    Filed: June 18, 2015
    Publication date: July 20, 2017
    Inventors: Martin Brunner, Christoph Hirsiger, Francesco Pullega, Samuel Rentsch, Michael TinkI
  • Publication number: 20170129782
    Abstract: The present invention refers to a process for making a calcium carbonate containing material, wherein the process includes a specific drying procedure and allows for the provision of calcium carbonate materials with reduced moisture pick-up and low porosity.
    Type: Application
    Filed: June 25, 2015
    Publication date: May 11, 2017
    Inventors: Matthias Buri, Catherine Jean Ridgway, Patrick A.C. Gane, Samuel Rentsch, René Burkhalter, Armelle Senti-Wenk, Martin Brunner, Gil Morieras, Tazio Fornera
  • Publication number: 20170081208
    Abstract: The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 23, 2017
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane, René Vinzenz Blum, Martine Poffet
  • Publication number: 20170036930
    Abstract: The present invention refers to a process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate and its uses.
    Type: Application
    Filed: September 30, 2016
    Publication date: February 9, 2017
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A.C. Gane, René Vincenz Blum, Martine Poffet
  • Patent number: 9556320
    Abstract: The present invention is directed to a process for surface whitening mineral matter in a slurry that includes the following steps: (a) preparing by dispersing and/or grinding at least one water based mineral matter slurry; and (b) adding during and/or after step a) 0.005 wt % to 0.5 wt %, based on dry weight of the mineral matter, of at least one alkylene oxide block co-polymer or at least one alkylene oxide random co-polymer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 31, 2017
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Claudia Pudack
  • Publication number: 20170009076
    Abstract: A process for the preparation of a mineral filler product is disclosed, the process comprising a step of dry grinding a calcium carbonate-containing material in a mixture obtained by contacting the calcium carbonate-containing material with at least one grinding agent selected from specific styrene-maleic anhydride co-polymers and/or specific derivatives of styrene-maleic anhydride co-polymers.
    Type: Application
    Filed: February 12, 2015
    Publication date: January 12, 2017
    Inventors: Samuel Rentsch, René Vinzenz Blum, Patrick A.C. Gane
  • Publication number: 20160347954
    Abstract: A process for the preparation of a mineral filler product is disclosed, the process comprising a step of wet grinding a calcium carbonate-containing material in a mixture obtained by contacting the calcium carbonate-containing material with at least one grinding agent selected from specific styrene-maleic anhydride co-polymers and/or specific derivatives of styrene-maleic anhydride co-polymers.
    Type: Application
    Filed: February 13, 2015
    Publication date: December 1, 2016
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Buri, Patrick A.C. Gane
  • Patent number: 9475943
    Abstract: Use of 2-amino-2-ethyl-1,3-propanediol as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: October 25, 2016
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Buri, Patrick A. C. Gane
  • Publication number: 20160237280
    Abstract: The present invention relates to a process for preparing an aqueous suspension comprising a mineral pigment material and a depolymerized carboxymethylcellulose having a degree of carboxylation in the range from 0.2 to 2.2, a molecular weight in the range from 5000 to 40000 g/mol, and a polydispersity index in the range from 2 to 10.
    Type: Application
    Filed: October 24, 2014
    Publication date: August 18, 2016
    Inventors: Samuel Rentsch, Matthias Buri, Fabio Ippolito, Patrick A.C. Gane
  • Patent number: 9376542
    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: Grant
    Filed: July 10, 2013
    Date of Patent: June 28, 2016
    Assignee: Omya International AG
    Inventors: Samuel Rentsch, Matthias Buri, Patrick A. C. Gane
  • Publication number: 20160177101
    Abstract: The present invention relates to an earth alkali carbonate-containing filler material having a volatile onset temperature of ?350° C., which is at least partially surface modified by using at least one polyhydrogensiloxane for increasing the hydrophobicity and/or decreasing the moisture pick up, a process for preparing such a surface modified earth alkali carbonate-containing filler material, a fibre and/or filament and/or film and/or thread and/or breathable film comprising the surface modified earth alkali carbonate-containing filler material as well as an article comprising the surface modified earth alkali carbonate-containing filler material and/or the fibre and/or filament and/or film and/or thread and/or breathable film, preferably its use in polyester products.
    Type: Application
    Filed: August 8, 2014
    Publication date: June 23, 2016
    Inventors: Samuel RENTSCH, Fabio IPPOLITO, Patrick A.C. GANE
  • Patent number: 9365723
    Abstract: The present invention relates to a process for preparing self-binding pigment particles from an aqueous mineral pigment material suspension having a solid content of 45 to 80 wt.-%, based on the total weight of the suspension.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: June 14, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Matthias Buri, Samuel Rentsch, Julie Bridy
  • Publication number: 20160130444
    Abstract: Use of 2-amino-2-ethyl-1,3-propanediol as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material, wherein the use provides improved stability with regard to the conductivity of the suspension.
    Type: Application
    Filed: July 7, 2014
    Publication date: May 12, 2016
    Inventors: Samuel Rentsch, Fabio Ippolito, Matthias Buri, Patrick A.C. Gane