Patents by Inventor Laurent Cousin

Laurent Cousin 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: 5824364
    Abstract: The present invention relates to a novel composite product which is composed of a fibrocrystalline heterogeneous structure consisting of:on the one hand a plurality of fibers of expanded specific surface area and of hydrophilic character, having a substantial quantity of microfibrils on their surface, andon the other hand crystals of precipitated calcium carbonate (PCC), organized essentially in clusters of granules, the majority of which trap the microfibrils and are joined directly thereto by mechanical bonding.Application to the field of construction materials and papermaking.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: October 20, 1998
    Assignee: International Paper Company
    Inventors: Laurent Cousin, Fernand Mora
  • Patent number: 5731080
    Abstract: The present invention relates to a novel composite product which is composed of a fibrocrystalline heterogeneous structure consisting of:on the one hand a plurality of fibers of expanded specific surface area and of hydrophilic character, having a substantial quantity of microfibrils on their surface, andon the other hand crystals of precipitated calcium carbonate (PCC), organized essentially in clusters of granules, the majority of which trap the microfibrils and are joined directly thereto by mechanical bonding.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: March 24, 1998
    Assignee: International Paper Company
    Inventors: Laurent Cousin, Fernand Mora