Patents by Inventor Julian Zelazny

Julian Zelazny 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).

  • PVC membrane for swimming pool liner
    Patent number: 5191007
    Abstract: Polyvinyl chloride compositions as well as flexible sheets and swimming pool liners of such compositions which contain significant quantities of an ultra high molecular weight polyvinyl chloride resin together with a heat stabilizer, plasticizer and optional additives are disclosed. In preferred compositions: the PVC resin is a mixture of high molecular weight and ultra high molecular weight PVC: the heat stabilizer is a mixed zinc-barium-alkyl phosphite stabilizer; and the composition contains 2-hydroxy-4-(2-hydroxyethoxy) benzophenone as an ultraviolet light absorber.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: March 2, 1993
    Assignee: Borden, Inc.
    Inventors: Julian Zelazny, David R. Morse