Patents by Inventor Frederick A. Butt

Frederick A. Butt 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).

  • Process for reinforcing polyvinyl chloride pipe by wrapping with glass fibers coated with a polyester resin composition
    Patent number: 4273599
    Abstract: A polyester resin composition is disclosed. The composition consists essentially of a blend of a diethylene glycol:neopentyl glycol:maleic:isophthalic acid polyester and a propylene glycol:isophthalic acid:maleic polyester, together with a copolymerizable monomer in an amount sufficient for reaction with the polyester blend to produce a thermoset article. In a preferred disclosed composition, the blend is composed from about 5 to 15 percent by weight of the diethylene glycol polyester and from about 95 to 85 percent of the propylene glycol polyester, together with from 35 to 45 percent by weight of styrene as a copolymerizable monomer, based upon the weight of the polyester blend and styrene.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: June 16, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Frederick A. Butt
  • Polyester resin composition
    Patent number: 4189452
    Abstract: A polyester resin composition is disclosed. The composition consists essentially of a blend of a diethylene glycol:neopentyl glycol:maleic:isophthalic acid polyester and a propylene glycol:isophthalic acid:maleic polyester, together with a copolymerizable monomer in an amount sufficient for reaction with the polyester blend to produce a thermoset article. In a preferred disclosed composition, the blend is composed from about 5 to 15 percent by weight of the diethylene glycol polyester and from about 95 to 85 percent of the propylene glycol polyester, together with from 35 to 45 percent by weight of styrene as a copolymerizable monomer, based upon the weight of the polyester blend and styrene.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: February 19, 1980
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: George N. Haddad, Frederick A. Butt