Patents by Inventor Robert Andy

Robert Andy 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: 4525494
    Abstract: A flame retardant polypropylene product and method are provided having the composition of about 60% to 64% alumina hydrate surface coated with about 1.0 wt. % of isostearic acid, about 0.25% to 1% organic titanate and the balance propropylene resin.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: June 25, 1985
    Inventor: Robert Andy
  • Patent number: 4328146
    Abstract: A method for reducing heat distortion but retaining high dielectric properties and volume resistivity of polymethylpentene. The method comprises dry blending chlorinated paraffin wax on mica particles and mixing so as to coat the mica particles and thereafter mixing with polymethylpentene in a blender so as not to break the mica particles or strip the wax coating therefrom. The resulting compound is then fed into an extruder at temperatures of about F. to F. The resulting material is then pelletized or strand cut.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: May 4, 1982
    Inventor: Robert Andy