Patents by Inventor Anne Lambin nee DelMotte

Anne Lambin nee DelMotte 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).

  • Cationic polysaccharides esterified by a discarloxylic acid anhydride substituted with a branched carbon chain
    Patent number: 5731430
    Abstract: The invention relates to a new composition for sizing paper and board, containing a cationic polysaccharide esterified by a dicarboxylic acid anhydride, characterized in that the said dicarboxylic acid anhydride is substituted with a carbon chain, saturated or unsaturated, of branched structure.The anhydride may for example consist of tetrapropenylsuccinic anhydride or of any one of its isomers.The composition for sizing according to the invention may, if necessary, contain an oxidizing agent such as a persulphate. It may advantageously be applied to the surface treatment of printing and/or writing papers, in particular of papers for envelopes and of papers for impact-free printing such as inkjet printing.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: March 24, 1998
    Assignee: Roquette Freres
    Inventors: Patrick Fuertes, Anne Lambin nee Delmotte, Jean-Louis Dreux
  • Composition and process for sizing paper
    Patent number: 5647898
    Abstract: The invention relates to a new composition for sizing paper and board, containing a cationic polysaccharide esterified by a dicarboxylic acid anhydride, characterized in that the said dicarboxylic acid anhydride is substituted with a carbon chain, saturated or unsaturated, of branched structure. The anhydride may for example consist of tetrapropenylsuccinic anhydride or of any one of its isomers. The composition for sizing according to the invention may, if necessary, contain an oxidizing agent such as a persulphate. It may advantageously be applied to the surface treatment of printing and/or writing papers, in particular of papers for envelopes and of papers for impact-free printing such as inkjet printing.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: July 15, 1997
    Assignee: Roquette Freres
    Inventors: Patrick Fuertes, Anne Lambin nee DelMotte, Jean-Louis Dreux