Patents by Inventor Jean G. Dubois

Jean G. Dubois 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: 4645550
    Abstract: Process for heat sealing glass containers. There is applied at least to the rim of a glass container adapted for receiving a sealing foil, at a temperature of 70.degree.-150.degree. C., a composition containing a mixture of at least one acrylic resin and at least one aminoplast resin in an aqueous medium. After drying, there is applied on the rim a sealing foil coated with a varnish or a plastic film by means of a heating head for a time and at a temperature sufficient to fix and seal the foil to the container.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: February 24, 1987
    Inventor: Jean G. DuBois
  • Patent number: 4636411
    Abstract: A process for treating glass containers, consisting of applying to the surface of the said containers, heated to a temperature of 80.degree. to 150.degree. C., a composition containing (a) a chemically drying binding agent consisting of an emulsifiable liquid or solid epoxy resin and either a water-soluble polyaminoamide resin having an amine index between 150 and 200, or an organosoluble solid amine adduct, or a mixture of the two and (b) a physically drying binding agent consisting of a cationic emulsion containing an acrylic polymer or a polyurethane.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: January 13, 1987
    Inventors: Jean G. Dubois, Michel Hesling