After Coating Patents (Class 427/224)
  • Preparation of heat barrier materials
    Patent number: 3944685
    Abstract: Heat barrier materials are prepared by forming an intimate admixture of alkaline earth sulfate and finely divided carbonaceous material into a shaped composition and subjecting said shaped composition to a high temperature to cause a surface reaction to produce a coating comprising alkaline earth sulfide on the surface of said shaped composition.
    Type: Grant
    Filed: June 28, 1971
    Date of Patent: March 16, 1976
    Assignee: Plastonium, Inc.
    Inventor: Rudy W. Gunnerman
  • Method for fixing a pattern described on the surface of thermoplastic resin articles
    Patent number: 3933547
    Abstract: Patterns described with inks or colors on the surface of thermoplastic resin articles having an interconnected fine open-cell structure in the surface layer thereof are rendered durable without displacement or deformation by heating under pressure the pattern described surface to a higher temperature than that at which said thermoplastic resin becomes fluid to cover the pattern-bearing surface with a thin film formed from the original resin constituting said surface layer.
    Type: Grant
    Filed: February 11, 1974
    Date of Patent: January 20, 1976
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masafumi Yoshida, Akira Esaka
  • Fibrous insulating materials
    Patent number: 3932161
    Abstract: Heat-insulating ceramic pieces are made, suitable for assembly to form the internal linings of gas turbine engine ducts, by producing and shaping an adherent mass of short fibre ceramic filaments and silica sol. After the shaped pieces have been dried, the surface of each is coated with fresh silica sol and the coated surfaces subjected to high intensity heating by means of an impinging flame which forms a very hard erosionresistant skin on each piece.
    Type: Grant
    Filed: April 9, 1973
    Date of Patent: January 13, 1976
    Inventor: Thomas Gordon McNish