Inflatable Bag Type Patents (Class 156/401)
  • Method of making an improved tire building sleeve and said sleeve
    Patent number: 3932255
    Abstract: This invention relates to a method of making sleeves or bladders for tire building machines for building bias angle tires, bias belted tires or radial ply belted tires by building the core of the sleeve of natural rubber, high cis polybutadiene, high cis polyisoprene, acrylonitrile-butadiene and butadiene styrene, and covering the outside of the core and at least part of the inside thereof with a layer of polyurethane elastomer, where the expose coat contains 0.5 to 10 percent by weight of silicone polycarbinol as slip agent.
    Type: Grant
    Filed: July 20, 1974
    Date of Patent: January 13, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Jeffrey W. Saracsan