Patents by Inventor Hubert Parant

Hubert Parant 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).

  • Use of an aqueous suspension and/or dispersion of mineral materials containing a hydrophobic group water-soluble copolymer for making a paper sheet
    Patent number: 8221587
    Abstract: The invention consists in the use, in a method for manufacturing a sheet of paper, of an aqueous suspension and/or dispersion of mineral materials as an agent for slowing the penetration of the paper coating into said sheet, characterized in that said suspension and/or dispersion contains at least one water-soluble copolymer made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxylalkylated monomer terminated by a hydrophobic chain. It also consists in a method for manufacturing a sheet of paper which implements said copolymer, as well as the sheet of paper obtained.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: July 17, 2012
    Assignee: Coatex S.A.S.
    Inventors: Jacques Mongoin, Francois Dupont, Hubert Parant, Jean-Marc Suau
  • USE OF AN AQUEOUS SUSPENSION AND/OR DISPERSION OF MINERAL MATERIALS CONTAINING A HYDROPHOBIC GROUP WATER-SOLUBLE COPOLYMER FOR MAKING A PAPER SHEET
    Publication number: 20100038046
    Abstract: The invention consists in the use, in a method for manufacturing a sheet of paper, of an aqueous suspension and/or dispersion of mineral materials as an agent for slowing the penetration of the paper coating into said sheet, characterized in that said suspension and/or dispersion contains at least one water-soluble copolymer made up of at least one ethylenically-unsaturated anionic monomer, and at least one ethylenically-unsaturated oxylalkylated monomer terminated by a hydrophobic chain. It also consists in a method for manufacturing a sheet of paper which implements said copolymer, as well as the sheet of paper obtained.
    Type: Application
    Filed: October 3, 2007
    Publication date: February 18, 2010
    Applicant: COATEX S.A.S.
    Inventors: Jacques Mongoin, Francois Dupont, Hubert Parant, Jean-Marc Suau