Patents by Inventor Janet Preston

Janet Preston 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: 11840455
    Abstract: A composition comprising at least one inorganic particulate material such as calcium carbonate, use of a said composition in a barrier coating composition or in a paper coating composition, a method for making said composition, a method for making a paper coating composition and a method for making a coated product.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 12, 2023
    Assignee: ImerTech SAS
    Inventors: Matthew Cheeseman, Janet Preston, Graham M. Pring
  • Publication number: 20230323601
    Abstract: Use of a particulate mineral having a coating of one or more rosin acid(s) and/or one or more derivative(s) thereof as a pitch and/or stickies control agent in a composition comprising cellulosic pulp, a method of reducing dissolved and/or colloidal pitch and/or stickies in cellulosic pulp using said coated particulate minerals, said coated particulate mineral, a method of making said coated particulate mineral, a composition comprising cellulosic pulp and said coated particulate mineral and paper comprising said coated particulate mineral.
    Type: Application
    Filed: April 24, 2018
    Publication date: October 12, 2023
    Inventors: Andrew FINDLAY, I, João SCALOPPE, Samuel HARDISTY, Douglas WICKS, Janet PRESTON
  • Patent number: 11535522
    Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 27, 2022
    Assignee: Imerys USA, Inc.
    Inventors: Virendra Singh, Christopher Paynter, David Gittins, Dickey Shurling, Douglas Wicks, Janet Preston, Andrew Findlay
  • Publication number: 20210101802
    Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.
    Type: Application
    Filed: December 9, 2020
    Publication date: April 8, 2021
    Inventors: Virendra SINGH, Christopher PAYNTER, David GITTINS, Dickey SHURLING, Douglas WICKS, Janet PRESTON, Andrew FINDLAY
  • Patent number: 10875782
    Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: December 29, 2020
    Assignee: Imerys USA, Inc.
    Inventors: Virendra Singh, Christopher Paynter, David Gittins, Dickey Shurling, Douglas Wicks, Janet Preston, Andrew Findlay
  • Publication number: 20190135650
    Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 9, 2019
    Inventors: Virendra SINGH, Christopher PAYNTER, David GITTINS, Dickey SHURLING, Douglas WICKS, Janet PRESTON, Andrew FINDLAY
  • Publication number: 20180186652
    Abstract: A composition comprising at least one inorganic particulate material such as calcium carbonate, use of a said composition in a barrier coating composition or in a paper coating composition, a method for making said composition, a method for making a paper coating composition and a method for making a coated product.
    Type: Application
    Filed: June 30, 2016
    Publication date: July 5, 2018
    Inventors: Matthew CHEESEMAN, Janet PRESTON, Graham M. PRING
  • Publication number: 20180080174
    Abstract: A barrier coating composition may include an alcohol-based binder; and an inorganic particulate, wherein mineral oil transmission through the barrier coating is such that the reduction in measured IR intensity at 2920 cm?1 is less than 1.0%, as determined by ATR-FTIR spectroscopy.
    Type: Application
    Filed: October 2, 2017
    Publication date: March 22, 2018
    Inventors: Janet Preston, Graham O'Neill, Jonathan Phipps
  • Patent number: 9783931
    Abstract: A barrier coating composition may include an alcohol-based binder and an inorganic particulate. The barrier coating composition may be used in various ways, including in paper products including the barrier composition, methods of preparing the paper products, articles, particularly food grade packaging formed from the paper products, and packaged products, particularly packaged foodstuffs including the packaging.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 10, 2017
    Assignee: Imerys Minerals Limited
    Inventors: Janet Preston, Graham O'Neill, Jonathan Phipps
  • Publication number: 20150030869
    Abstract: A pigment composition may include an inorganic particulate material, a multivalent metal salt, and a non ionic dispersant. A substrate may be coated with an aqueous coating composition including the pigment composition. The substrate may be a paper product.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 29, 2015
    Inventors: Janet Preston, Christopher Nutbeem, Benny Hallam, Anthony Lyons, Roger Wygant, Philip Coulter
  • Publication number: 20140343172
    Abstract: A barrier coating composition may include an alcohol-based binder and an inorganic particulate. The barrier coating composition may be used in various ways, including in paper products including the barrier composition, methods of preparing the paper products, articles, particularly food grade packaging formed from the paper products, and packaged products, particularly packaged foodstuffs including the packaging.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 20, 2014
    Applicant: IMERYS MINERALS LIMITED
    Inventors: Janet Preston, Graham O'Neill, Jonathan Phipps
  • Publication number: 20060137574
    Abstract: The present invention relates to new pigment compositions, coating compositions and methods for making the new compositions, such as coatings for ink jet receiving materials. The coated inkjet receiving material can provide improved printability. The pigment composition can be prepared by dispersing a carbonate pigment with at least one anionic dispersant The predispersed carbonate can then combined with at least one cationic polymer, such as a polyquaternary ammonium polymer or polyamine capable of being converted to a polyquaternary ammonium polymer.
    Type: Application
    Filed: January 13, 2004
    Publication date: June 29, 2006
    Inventors: Janet Preston, Anthony Lyons, Bomi Bilimoria, David Skuse
  • Publication number: 20010042011
    Abstract: The present invention recognizes that traditional holiday customs or beliefs and items can be used as the basis of electronic customs. For example, an Advent Calendar, a traditional Christian Christmas custom and item, can be transformed into an electronic version. The electronic version can be widely distributed on the internet and attract viewers of a particular faith or belief at a particular time of year, such as the days preceding and following Christmas. The attracted viewers are invited to interface with the electronic version of the Advent Calendar. As with traditional Advent Calendars, selected doors are opened on selected days, revealing a treat or gift. In the electronic version, the viewer is invited to select a treat or gift, where additional graphics are optionally provided. Such graphics can include gift ideas, which can be hyperlinked to URL's that have that or similar gifts for sale.
    Type: Application
    Filed: December 4, 2000
    Publication date: November 15, 2001
    Inventor: Susan Janet Preston