Patents by Inventor Claude Charest

Claude Charest 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: 7090910
    Abstract: Selectivity embossed surface coverings are prepared by mechanically embossing a wear layer which overlays at least one printing ink containing a photoinitiator which has been printed in a pattern or design. The embossed wear layer is subjected to ultraviolet radiation which causes curing of the wear layer in the surface areas disposed over the printing ink. The product then is fused whereby the mechanical embossing in surface areas which are not disposed over the printing ink relaxes and becomes smooth. In a variant of the invention, a thermoplastic wear layer is employed which can be mechanically embossed in the surface areas which are not disposed over the printing ink with a texture different from the first applied mechanical embossing. In another variant, two different spectral regions of UV curing radiation are used so that a urethane coating can be employed as a top coat with a selectively embossed surface.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 15, 2006
    Assignee: Domco Tarkett Inc.
    Inventors: Jean-François Courtoy Courtoy, René Ménard, Victor Caldas, Claude Charest
  • Patent number: 7081291
    Abstract: Selectivity embossed surface coverings are prepared by mechanically embossing a wear layer which overlays at least one printing ink containing a photoinitiator which has been printed in a pattern or design. The embossed wear layer is subjected to ultraviolet light which causes curing of the wear layer in the surface areas disposed over the printing ink. The product then is fused whereby the mechanical embossing in surface areas which are not disposed over the printing ink relaxes and becomes smooth. In a variant of the invention, a thermoplastic wear layer is employed which can be mechanically embossed in the surface areas which are not disposed over the printing ink with a texture different from the first applied mechanical embossing.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: July 25, 2006
    Assignee: Domco Tarkett Inc.
    Inventors: Jean-François Courtoy, René Ménard, Victor Caldas, Claude Charest
  • Publication number: 20030138618
    Abstract: Selectivity embossed surface coverings are prepared by mechanically embossing a wear layer which overlays at least one printing ink containing a photoinitiator which has been printed in a pattern or design. The embossed wear layer is subjected to ultraviolet light which causes curing of the wear layer in the surface areas disposed over the printing ink. The product then is fused whereby the mechanical embossing in surface areas which are not disposed over the printing ink relaxes and becomes smooth. In a variant of the invention, a thermoplastic wear layer is employed which can be mechanically embossed in the surface areas which are not disposed over the printing ink with a texture different from the first applied mechanical embossing.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 24, 2003
    Inventors: Jean-Francois Courtoy, Rene Menard, Victor Caldas, Claude Charest
  • Publication number: 20030138617
    Abstract: Selectivity embossed surface coverings are prepared by mechanically embossing a wear layer which overlays at least one printing ink containing a photoinitiator which has been printed in a pattern or design. The embossed wear layer is subjected to ultraviolet radiation which causes curing of the wear layer in the surface areas disposed over the printing ink. The product then is fused whereby the mechanical embossing in surface areas which are not disposed over the printing ink relaxes and becomes smooth. In a variant of the invention, a thermoplastic wear layer is employed which can be mechanically embossed in the surface areas which are not disposed over the printing ink with a texture different from the first applied mechanical embossing. In another variant, two different spectral regions of UV curing radiation are used so that a urethane coating can be employed as a top coat with a selectively embossed surface.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 24, 2003
    Inventors: Jean-Francois Courtoy Courtoy, Rene Menard, Victor Caldas, Claude Charest
  • Patent number: 6586108
    Abstract: An article that is a flooring material or a wall covering coated with a wear layer that is a heat-cured and radiation-cured coating composition, the composition including a polyvinyl chloride (PVC resin), an acrylic or methacrylic compound, and a radiation-reactive urethane oligomer, the composition being substantially or completely free of internal or external plasticizers.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: July 1, 2003
    Assignee: Domco Industries Ltd.
    Inventors: Jean-François Courtoy, Claude Charest
  • Publication number: 20030118788
    Abstract: The invention concerns a barrier composition, surface covering products incorporating a barrier layer, methods for making such surface covering products and methods for inhibiting or preventing the migration of sub-surface stains to the decorative portions of the surface covering products. The barrier composition comprises thermoplastic latex. The barrier composition is applied to the lower surface of the substrate of a decorative surface covering, or the lower surface of a basecoat on the substrate, and is then heat cured to obtain the barrier layer.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Robert Pearce, Rene Menard, Victor Caldas, Claude Charest
  • Patent number: 6461689
    Abstract: The specular gloss of a polyurethane wear layer of a surface covering is controlled by controlling the thermal conditions of a substrate before and after it is coated with a liquid polyurethane and by controlling the termal conditions of the liquid polyurethane before it is coated on the substrate. The liquid polyurethane is photo-curable or radiation-curable and it contains a matting agent. Changes in specular gloss are attained without changing the composition of the polyurethane or the conditions of photo-curing or radiation curing.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: October 8, 2002
    Assignee: Domco Tarkett Inc.
    Inventors: Martin Gauthier, Claude Charest, René Ménard, Jean-François Courtoy
  • Patent number: 6146711
    Abstract: A wear layer is applied to a flooring material to yield a product having superior properties. The wear layer is applied to the flooring material using a coating composition comprising (i) a polyvinyl chloride (PVC) resin, (ii) an acrylic or methacrylic compound and (iii) a radiation-reactive urethane oligomer, which composition is substantially or completely free of internal or external plasticizers, heating to heat-cure the coating composition and irradiating the composition to radiation-cure the coating composition.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: November 14, 2000
    Assignee: Domco Industries Ltd
    Inventors: Jean-Fran.cedilla.ois Courtoy, Claude Charest
  • Patent number: 5679721
    Abstract: A radiation-curable coating composition comprising a PVC resin, an acrylic or methacrylic compound and a radiation-reactive urethane oligomer. Also described is a process for coating a material, comprising the steps of applying to the material a coating composition according to the invention, heating to heart-cure the coating composition and irradiating the composition to radiation-cure the coating composition. There is also provided an article comprising a material coated with the composition according to the invention. The invention is particularly useful for coating resilient vinyl flooring materials.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: October 21, 1997
    Assignee: Domco Industries Ltd.
    Inventors: Jean-Fran.cedilla.ois Courtoy, Claude Charest