Patents by Inventor Michael Kaessberger

Michael Kaessberger 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).

  • Patent number: 10047482
    Abstract: The present invention is directed to a liquid coating composition comprising at least one terephthalate ionomer comprising anionic substituents selected from sulfonate, carboxylate and/or phosphate groups, wherein the at least one terephthalate ionomer has an acid value of at least 1 mg KOH/g ionomer, at least one calcium carbonate containing filler, and a buffer.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: August 14, 2018
    Assignee: Omya International AG
    Inventors: Steffen Ohr, Guenter Wimmer, Philipp Hunziker, Michael Kässberger, Joachim Schoelkopf
  • Publication number: 20180066139
    Abstract: The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 ?m of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 ?m of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
    Type: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Inventors: Guillermo Bluvol, Michael Kässberger, Patrick A.C. Gane
  • Patent number: 9840624
    Abstract: The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 ?m of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 ?m of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: December 12, 2017
    Assignee: Omya International AG
    Inventors: Guillermo Bluvol, Michael Kässberger, Patrick A. C. Gane
  • Publication number: 20170114223
    Abstract: The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 ?m of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 ?m of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
    Type: Application
    Filed: January 9, 2017
    Publication date: April 27, 2017
    Inventors: Guillermo Bluvol, Michael Kässberger, Patrick A.C. Gane
  • Patent number: 9617430
    Abstract: The present invention is directed to a process for manufacturing a calcium carbonate product including the steps of (i) contacting calcium carbonate with of one or more zirconium compounds in an aqueous suspension and/or of an aqueous emulsion and/or of an aqueous solution to obtain a calcium carbonate-containing slurry, and (ii) dispersing the calcium carbonate-containing slurry to obtain a calcium carbonate product.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: April 11, 2017
    Assignee: Omya International AG
    Inventors: Matthias Buri, Joachim Schoelkopf, Michael Kaessberger
  • Publication number: 20170073901
    Abstract: The present invention is directed to a liquid coating composition comprising at least one terephthalate ionomer comprising anionic substituents selected from sulfonate, carboxylate and/or phosphate groups, wherein the at least one terephthalate ionomer has an acid value of at least 1 mg KOH/g ionomer, at least one calcium carbonate containing filler, and a buffer.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 16, 2017
    Applicant: Omya International AG
    Inventors: Steffen Ohr, Guenter Wimmer, Philipp Hunziker, Michael Kässberger, Joachim Schoelkopf
  • Patent number: 9574088
    Abstract: The present invention is directed to an aqueous suspension and/or aqueous dispersion of calcium carbonate obtained by the process of manufacturing a calcium carbonate-containing slurry prepared by addition of one or more zirconium compounds, wherein the aqueous suspension and/or aqueous dispersion of calcium carbonate consists essentially of calcium carbonate, water, one or more zirconium compounds and optionally, one or more phosphate-free additives acting as dispersion and/or grinding aid agents.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: February 21, 2017
    Assignee: Omya International AG
    Inventors: Mathias Buri, Joachim Schoelkopf, Michael Kaessberger
  • Patent number: 9574305
    Abstract: The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 ?m of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 ?m of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: February 21, 2017
    Assignee: Omya International AG
    Inventors: Guillermo Bluvol, Michael Kässberger, Patrick A. C. Gane
  • Patent number: 8986440
    Abstract: The invention relates to novel and innovative PCC pigments, able to be used in a paper coating formulations to manufacture coated “multipurpose” papers, in particular for inkjet applications, whose print qualities would be identical or quite similar to high resolution commercial papers, while maintaining a reduced paper manufacturing and production cost. Said pigments are obtained by a carbonation process using a reduced flow rate of CO2/air, which leads to porous agglomerates of PCC of a very specific structure and unique properties, followed by an upconcentration step leading to substantially the same agglomerates but with a higher, appropriate, solids content.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: March 24, 2015
    Assignee: Omya International AG
    Inventors: Michael Kaessberger, Michael Pohl
  • Patent number: 8936771
    Abstract: The invention relates to novel and innovative PCC pigments, able to be used in a paper coating formulations to manufacture coated “multipurpose” papers, in particular for inkjet applications, whose print qualities would be identical or quite similar to high resolution commercial papers, while maintaining a reduced paper manufacturing and production cost. Said pigments are obtained by a carbonation process using a reduced flow rate of CO2/air, which leads to porous agglomerates of PCC of a very specific structure and unique properties, followed by an upconcentration step leading to substantially the same agglomerates but with a higher, appropriate, solids content.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: January 20, 2015
    Assignee: Omya International AG
    Inventors: Michael Kaessberger, Michael Pohl
  • Patent number: 8883098
    Abstract: Novel and innovative PCC pigments, having a reduced production cost, able to be used in a paper coating formulations to manufacture coated high-quality matt papers, in particular for inkjet applications. Process for the preparation of same, using a reduced flow rate of a carbon dioxide-containing gas in the PCC carbonation step, which produces stable, porous, agglomerates of PCC featuring unique properties and structure, this step being followed by an upconcentration step to increase the solids content.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: November 11, 2014
    Assignee: Omya International AG
    Inventors: Michael Kaessberger, Michael Pohl
  • Patent number: 8845804
    Abstract: The present invention is directed to a process for manufacturing a calcium carbonate product by the steps of (i) contacting calcium carbonate with of one or more zirconium compounds in an aqueous suspension and/or of an aqueous emulsion and/or of an aqueous solution to obtain a calcium carbonate-containing slurry, and (ii) grinding the calcium carbonate-containing slurry to obtain a calcium carbonate product.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: September 30, 2014
    Assignee: Omya International AG
    Inventors: Matthias Buri, Joachim Schoelkopf, Michael Kaessberger
  • Publication number: 20130042791
    Abstract: The present invention relates to an aqueous slurry comprising natural ground calcium carbonate which has a percentage P5 by weight of particles having a diameter of less than 5.0 ?m of from 98.5% to 90%, a percentage P2 by weight of particles having a diameter of less than 2.0 ?m of from 96% to 80%, wherein the ratio of P2/P5 is from 0.98 to 0.85, and wherein the slurry has a solids content of more than 78 wt %.
    Type: Application
    Filed: September 21, 2010
    Publication date: February 21, 2013
    Applicant: OMYA DEVELOPMENT AG
    Inventors: Guillermo Bluvol, Michael Kässberger, Patrick A.C. Gane
  • Publication number: 20120289639
    Abstract: The present invention is directed to a process for manufacturing a calcium carbonate product including the steps of (i) contacting calcium carbonate with of one or more zirconium compounds in an aqueous suspension and/or of an aqueous emulsion and/or of an aqueous solution to obtain a calcium carbonate-containing slurry, and (ii) dispersing the calcium carbonate-containing slurry to obtain a calcium carbonate product.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 15, 2012
    Inventors: Matthias Buri, Joachim Schoelkopf, Michael Kaessberger
  • Publication number: 20120040111
    Abstract: The invention relates to novel and innovative PCC pigments, able to be used in a paper coating formulations to manufacture coated “multipurpose” papers, in particular for inkjet applications, whose print qualities would be identical or quite similar to high resolution commercial papers, while maintaining a reduced paper manufacturing and production cost. Said pigments are obtained by a carbonation process using a reduced flow rate of CO2/air, which leads to porous agglomerates of PCC of a very specific structure and unique properties, followed by an upconcentration step leading to substantially the same agglomerates but with a higher, appropriate, solids content.
    Type: Application
    Filed: October 21, 2011
    Publication date: February 16, 2012
    Inventors: Michael Kaessberger, Michael Pohl
  • Publication number: 20110192323
    Abstract: It is an object of the present invention to provide a process of manufacturing calcium carbonate-containing slurries, wherein said calcium carbonate-containing slurries are prepared by adding one or more zirconium compounds, and possibly one or more further phosphate-free additives acting as dispersing and/or grinding aid agents. An other object of the invention lies in calcium carbonate-containing slurries thus obtained, and dry calcium carbonate mineral pigments resulting from the drying of such slurries. A further object of the invention is the use of such slurries and such dry mineral pigments in paper manufacturing, plastic coatings, as fillers for plastics or for aqueous paint compositions and the like. Papers, paints and plastics containing such slurries and such dry pigments are also an object of the present invention.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 11, 2011
    Inventors: Mathias Buri, Joachim Schoelkopf, Michael Kaessberger
  • Patent number: 7825192
    Abstract: The present invention relates to the technical mineral matter suspension sector, and, before and/or after drying, their applications in the fields of paper, paint and, after drying, plastics. It also relates to the use of a copolymer having at least one alkoxy or hydroxy polyalkylene glycol function grafted onto at least one ethylenically unsaturated monomer, as agent whose role is to enhance the gloss of the final product and, in particular, the gloss of the sheet of paper, irrespective of the viewing angle.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: November 2, 2010
    Assignee: Omya Development AG
    Inventors: Patrick Gane, Matthias Buri, Michael Kaessberger
  • Publication number: 20090301351
    Abstract: It is an object of the present invention to provide a process of manufacturing calcium carbonate-containing slurries, wherein said calcium carbonate-containing slurries are prepared by adding one or more zirconium compounds, and possibly one or more further phosphate-free additives acting as dispersing and/or grinding aid agents. An other object of the invention lies in calcium carbonate-containing slurries thus obtained, and dry calcium carbonate mineral pigments resulting from the drying of such slurries. A further object of the invention is the use of such slurries and such dry mineral pigments in paper manufacturing, plastic coatings, as fillers for plastics or for aqueous paint compositions and the like. Papers, paints and plastics containing such slurries and such dry pigments are also an object of the present invention.
    Type: Application
    Filed: July 11, 2006
    Publication date: December 10, 2009
    Applicant: OMYA DEVELOPMENT AG
    Inventors: Matthais Buri, Joachim Schoelkopf, Michael Kaessberger
  • Publication number: 20090022912
    Abstract: The invention relates to novel and innovative PCC pigments, able to be used in a paper coating formulations to manufacture coated “multipurpose” papers, in particular for inkjet applications, whose print qualities would be identical or quite similar to high resolution commercial papers, while maintaining a reduced paper manufacturing and production cost. Said pigments are obtained by a carbonation process using a reduced flow rate of CO2/air, which leads to porous agglomerates of PCC of a very specific structure and unique properties, followed by an upconcentration step leading to substantially the same agglomerates but with a higher, appropriate, solids content.
    Type: Application
    Filed: March 29, 2006
    Publication date: January 22, 2009
    Inventors: Michael Kaessberger, Michael Pohl
  • Publication number: 20090017233
    Abstract: Novel and innovative PCC pigments, having a reduced production cost, able to be used in a paper coating formulations to manufacture coated high-quality matt papers, in particular for inkjet applications. Process for the preparation of same, using a reduced flow rate of a carbon dioxide-containing gas in the PCC carbonation step, which produces stable, porous, agglomerates of PCC featuring unique properties and structure, this step being followed by an upconcentration step to increase the solids content.
    Type: Application
    Filed: March 29, 2006
    Publication date: January 15, 2009
    Inventors: Michael Kaessberger, Michael Pohl