Patents Assigned to Nevamar Corporation
  • Patent number: 4499137
    Abstract: The scuff resistance of a high-pressure laminate is improved by incorporating in or very near the surface thereof, finely divided polyethylene wax preferably having a particle size of about 1-25 microns and a melting point of 220.degree.-230.degree. F. The wax is incorporated as part of a coating mixture applied to the face of an unimpregnated decor paper sheet in an ultra-thin layer, which layer is dried at a temperature below the wax melting point and then impregnated with conventional melamine-formaldehyde resin. The impregnated sheet is placed onto a sheet of convention phenolic resin impregnated core sheets and consolidated in the conventional way under heat and pressure. During consolidation, the wax particles "bloom", or migrate to the surface. The finished laminate surface has greatly improved scuff resistance.
    Type: Grant
    Filed: August 9, 1983
    Date of Patent: February 12, 1985
    Assignee: Nevamar Corporation
    Inventors: Robin D. O'Dell, Israel S. Ungar, Herbert I. Scher
  • Patent number: 4430375
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: February 7, 1984
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4400423
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of micro-crystalline cellulose overcoated with an ultra thin layer of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: September 1, 1981
    Date of Patent: August 23, 1983
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4395452
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: July 26, 1983
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4327141
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of micro-crystalline cellulose overcoated with an ultra thin layer of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: April 27, 1982
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4305987
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: December 15, 1981
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4263081
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of micro-crystalline cellulose overcoated with an ultra thin layer of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: April 21, 1981
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4255480
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: March 10, 1981
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar
  • Patent number: 4154882
    Abstract: A decorative high pressure laminate having registered color and embossing is produced by effecting simultaneous embossing and laminating using a three dimensional press plate acting against an overlay sheet containing high flow melamine resin and pigment, so that during the pressing operation the resin and pigment flows laterally from the high pressure areas to the low pressure areas with the result that the underlying print sheet is visible through the overlay sheet in the high pressure areas while the pigment in the overlay sheet in the low pressure areas mask the print sheet.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: May 15, 1979
    Assignee: Nevamar Corporation
    Inventors: Israel S. Ungar, Herbert I. Scher, Delbert A. Williams
  • Patent number: RE31373
    Abstract: A decorative high pressure laminate having registered color and embossing is produced by effecting simultaneous embossing and laminating using a three dimensional press plate acting against an overlay sheet containing high flow melamine resin and pigment, so that during the pressing operation the resin and pigment flows laterally from the high pressure areas to the low pressure areas with the result that the underlying print sheet is visible through the overlay sheet in the high pressure areas while the pigment in the overlay sheet in the low pressure areas mask the print sheet.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: September 6, 1983
    Assignee: Nevamar Corporation
    Inventors: Israel S. Ungar, Herbert I. Scher, Delbert A. Williams