Patents by Inventor Guy Jacquelin

Guy Jacquelin 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).

  • Application of precipitates of methylene ureas and products obtained
    Patent number: 3959570
    Abstract: A method of manufacture from a predetermined material, especially from a natural fibrous material and/or synthetic fibrous material of an article, in particular a sheet for printing or reproduction, which combines superior qualities of brightness, opacity, thermal stability, insolubility and lightness, said method consisting of laoding said material throughout its mass or superficially, with a filler product having a base of a methylene urea precipitate with a low degree of polymerization, obtained by the reaction of urea on formaldehyde in an acid medium.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: May 25, 1976
    Assignee: Centre Technique de l'Industrie des Papiers Cartons et Celluloses
    Inventors: Guy Jacquelin, Solange Sangenis