Patents by Inventor Patrick A. C. Gane

Patrick A. C. Gane 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).

  • Process for preparing self-binding pigment particle suspensions
    Patent number: 9670366
    Abstract: The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension as filler material.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 6, 2017
    Assignee: Omya International AG
    Inventors: Daniel Gantenbein, Joachim Schoelkopf, Patrick A. C. Gane
  • Process for preparing self-binding pigment particles
    Patent number: 9611587
    Abstract: The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of a calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: April 4, 2017
    Assignee: Omya International AG
    Inventors: Daniel Gantenbein, Patrick A. C. Gane, Joachim Schoelkopf, Maximilian Laufmann, Lars Andersson
  • Process to prepare a surface-reacted calcium carbonate implementing a weak acid, resulting products and uses thereof
    Patent number: 9593244
    Abstract: The present application relates to a process for preparing a surface-reacted calcium carbonate in an aqueous environment. The process according to the present invention aims at avoiding the mandatory implementation of medium-strong to strong acids. Another aspect of the present invention is directed to an aqueous suspension of surface-reacted calcium carbonate which is obtainable by the inventive process.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 14, 2017
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Daniel E. Gerard
  • Coated controlled release active agent carriers
    Patent number: 9579291
    Abstract: The present invention relates to carriers for the controlled release of active agents, comprising a core, comprising surface reacted natural or synthetic calcium carbonate, and at least one active agent, wherein said at least one active agent is associated with said natural or synthetic surface-reacted calcium carbonate, and wherein said surface-reacted natural or synthetic calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, and a coating encapsulating the core. It furthermore relates to the preparation of loaded carriers, as well as their use in different applications.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: February 28, 2017
    Assignee: Omya International AG
    Inventors: Patrick Schwarzentruber, Nicola Di Maiuta, Joachim Schoelkopf, Catherine Jean Ridgway, Patrick A. C. Gane
  • Coarse pigment addition and high solids slurries for higher coating colour concentrations
    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
  • Acid modified natural filler to initialize the beta-nucleation of polypropylene
    Patent number: 9528003
    Abstract: The present invention relates to a composition for beta-nucleation of polypropylene, comprising: (a) a particulate mineral solid support, comprising a compound of a IUPAC Group 2 metal, and (b) on the surface of the particulate solid support (b1) a salt of a dicarboxylic acid, wherein the dicarboxylic acid has from 7 to 10 carbon atoms, and (b2) a dispersing and/or grinding agent.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: December 27, 2016
    Assignee: Omya International AG
    Inventors: Michael Knerr, Matthias Buri, Patrick A. C. Gane
  • Method for sizing of mineral matter in the presence of additives containing glycerol, products obtained and their uses
    Patent number: 9512316
    Abstract: The present invention concerns a method for sizing of mineral matter using a sizing aid additive including glycerol and/or at least one polyglycerol allowing the efficiency of air sizing to be increased, or involving a specific sizing energy which is reduced relative to an additive-free air sizing, whilst obtaining a sized mineral matter compatible with an application in an aqueous medium.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: December 6, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Matthias Buri
  • Use of 2-amino-2-ethyl-1,3-propanediol as additive in aqueous suspensions of calcium carbonate-comprising materials while maintaining stable suspension conductivity
    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
  • Print medium
    Patent number: 9427999
    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: Grant
    Filed: October 8, 2015
    Date of Patent: August 30, 2016
    Assignee: Omya International AG
    Inventors: Jan Philipp Weihs, Oliver Patrick Grossmann, Matthias Buri, Philipp Hunziker, Patrick A. C. Gane, Daniel Gantenbein
  • Process for preparing surface-reacted calcium carbonate and its use
    Patent number: 9410039
    Abstract: The present invention relates to an economic process for preparing surface-reacted calcium carbonate. The present invention further relates to a surface-reacted calcium carbonate having an increased specific BET surface area, and the use of a process for adjusting the specific BET surface area.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: August 9, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Daniel E. Gerard, Joachim Schölkopf
  • Dispersed calcium carbonate containing material for an improved stability under alkaline conditions
    Patent number: 9394428
    Abstract: The present invention relates to a method for preparing an aqueous calcium carbonate containing suspension, a suspension comprising a calcium carbonate containing material obtainable by said method as well as a calcium carbonate containing material obtainable by drying said suspension and to the use of the suspension or calcium carbonate containing material in paper, paper coating, plastic and/or paint applications and to the use of the suspension for stabilizing the rheology of a sodium silicate and/or sodium hydroxide containing coating formulations for paper applications.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: July 19, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Daniel Gantenbein
  • High solids and low viscous aqueous slurries of calcium carbonate-comprising materials with improved rheological stability under increased temperature
    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
  • Process for preparing self-binding pigment particles
    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
  • High solids aqueous mineral and/or filler and/or pigment suspension in acidic pH environment
    Patent number: 9328222
    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: Grant
    Filed: June 7, 2013
    Date of Patent: May 3, 2016
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane
  • Use of 2-aminoethanol as additive in aqueous suspensions of calcium carbonate comprising materials
    Patent number: 9293237
    Abstract: Use of 2-aminoethanol 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: May 31, 2011
    Date of Patent: March 22, 2016
    Assignee: Omya International AG
    Inventors: Matthias Buri, Samuel Rentsch, Patrick A. C. Gane
  • Print medium
    Patent number: 9248685
    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: Grant
    Filed: September 19, 2013
    Date of Patent: February 2, 2016
    Assignee: Omya International AG
    Inventors: Jan Philipp Weihs, Oliver Patrick Grossmann, Matthias Buri, Philipp Hunziker, Patrick A. C. Gane, Daniel Gantenbein
  • Method for improving handleability of calcium carbonate containing materials
    Patent number: 9243122
    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: Grant
    Filed: March 9, 2015
    Date of Patent: January 26, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Matthias Buri, René Vinzenz Blum, Samuel Rentsch
  • Process for manufacturing high solids suspensions of mineral materials
    Patent number: 9243121
    Abstract: The present invention relates to a process for manufacturing high solids aqueous suspensions of mineral materials comprising the steps of providing at least one mineral material, preparing an aqueous suspension comprising the at least one mineral material, grinding the resulting aqueous suspension, centrifuging the ground aqueous suspension, and concentrating the centrifuged product of step d) by flash cooling; the high solids aqueous suspension of mineral materials obtained by this process, as well as the use thereof.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 26, 2016
    Assignee: Omya International AG
    Inventors: Matthias Buri, Patrick A. C. Gane
  • Treated mineral filler products, process for the preparation thereof and uses of same
    Patent number: 9238727
    Abstract: The present invention relates to the technical field of treated mineral filler products. The invention further relates to a process for preparing such treated mineral filler products, 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 23, 2011
    Date of Patent: January 19, 2016
    Assignee: Omya International AG
    Inventors: Matthias Buri, Patrick A. C. Gane, Samuel Rentsch, René Burkhalter
  • Process to prepare a surface-reacted calcium carbonate implementing a weak acid, resulting products and uses thereof
    Patent number: 9234102
    Abstract: The present application relates to a process for preparing a surface-reacted calcium carbonate in an aqueous environment. The process according to the present invention aims at avoiding the mandatory implementation of medium-strong to strong acids. Another aspect of the present invention is directed to an aqueous suspension of surface-reacted calcium carbonate which is Obtainable by the inventive process.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 12, 2016
    Assignee: Omya International AG
    Inventors: Patrick A. C. Gane, Daniel E. Gerard