Patents by Inventor Jean P. Kerherve

Jean P. Kerherve 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).

  • Process of preparation for the surface protection of zinc against white rust
    Patent number: 5045361
    Abstract: A process for producing an acrylic and/or methacrylic polymer based preparation for the surface treatment of zinc consists in polymerizing at least one (meth)acrylic acid and at least one (meth)acrylate in a mixture of organic cosolvents. The preparation is then formed from the resultant copolymer in the cosolvents by dilution in a quantity of water and preferably an excess of water with respect to the cosolvents in the polymerization stage.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: September 3, 1991
    Assignee: Produits Chimiques Auxiliaires et de Synthese (P.C.A.S.)
    Inventor: Jean P. Kerherve
  • Polymer based preparation for the surface protection of zinc against white rust
    Patent number: 5037877
    Abstract: A process for producing an acrylic and/or methacrylic polymer based preparation for the surface treatment of zinc consists in polymerizing at least one (meth)acrylic acid and at least one (meth)acrylate in a mixture of organic cosolvents. The preparation is then formed from the resultant copolymer in the cosolvents by dilution in a quantity of water and preferably an excess of water with respect to the cosolvents in the polymerization stage.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: August 6, 1991
    Assignee: Produits Chimiques Auxiliaires et de Synthese (P.C.A.S.)
    Inventor: Jean P. Kerherve