Patents by Inventor Steven W. Sheppard

Steven W. Sheppard 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).

  • Removal of stickies in the recycling of paper and paperboard
    Patent number: 11447914
    Abstract: Removal of stickies from waste paper and paperboard is obtained with the use of a modified kaolin-based stickies removal composition. The modified kaolin-based stickies removal composition is produced by modifying the kaolin clay, separating the modified kaolin clay from the non-reactive kaolin clay, and then adding a nonionic surfactant to the modified kaolin-based particles. Removal of stickies is improved by the use of this modified kaolin-based stickies removal composition during the recycling of the waste paper and paperboard.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: September 20, 2022
    Inventors: Cesar I. Basilio, Steven W. Sheppard
  • REMOVAL OF STICKIES IN THE RECYCLING OF PAPER AND PAPERBOARD
    Publication number: 20190177913
    Abstract: Removal of stickies from waste paper and paperboard is obtained with the use of a modified kaolin-based stickies removal composition. The modified kaolin-based stickies removal composition is produced by modifying the kaolin clay, separating the modified kaolin clay from the non-reactive kaolin clay, and then adding a nonionic surfactant to the modified kaolin-based particles. Removal of stickies is improved by the use of this modified kaolin-based stickies removal composition during the recycling of the waste paper and paperboard.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 13, 2019
    Inventors: Cesar I. Basilio, Steven W. Sheppard
  • Deinking of waste paper
    Patent number: 8815051
    Abstract: Deinking of waste paper is obtained with the use of a hydrophobic kaolin-based deinking composition. The hydrophobic kaolin-based deinking composition is produced by hydrophobizing the kaolin clay and then blending the hydrophobic kaolin-based particles with a deinking surfactant. Separation and removal of ink is achieved either by washing deinking, flotation deinking or combination of these methods.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: August 26, 2014
    Assignee: Thiele Kaolin Company
    Inventors: Cesar I. Basilio, Steven W. Sheppard
  • Deinking of waste paper
    Publication number: 20120031573
    Abstract: Deinking of waste paper is obtained with the use of a hydrophobic kaolin-based deinking composition. The hydrophobic kaolin-based deinking composition is produced by hydrophobizing the kaolin clay and then blending the hydrophobic kaolin-based particles with a deinking surfactant. Separation and removal of ink is achieved either by washing deinking, flotation deinking or combination of these methods.
    Type: Application
    Filed: October 18, 2011
    Publication date: February 9, 2012
    Inventors: Cesar I. Basilio, Steven W. Sheppard
  • Deinking of waste paper
    Patent number: 8052837
    Abstract: Waste paper is deinked by a composition which comprises a surfactant and a hydrophobic-based deinking component.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: November 8, 2011
    Assignee: Thiele Kaolin Company
    Inventors: Cesar I. Basilio, Steven W. Sheppard
  • Deinking of waste paper
    Publication number: 20070284067
    Abstract: Waste paper can be deinked by use of a composition which comprises a surfactant and a mineral-based deinking component.
    Type: Application
    Filed: June 12, 2006
    Publication date: December 13, 2007
    Inventors: Cesar I. Basilio, Steven W. Sheppard