Patents by Inventor Tullo Ronchetti

Tullo Ronchetti 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).

  • Coextruded multilayer and a process for preparing the same
    Patent number: 5180634
    Abstract: Coextruded multilayer sheets comprising a first outer layer consisting of a blend containing polyvinylidene fluoride having an average mollecular weight (Mw) not higher than 250,000 and an acrylic resin and at least a layer of a homo or copolymer of an alkylmethacrylate, having a Vicat degree (49N, 50.degree. C/h) of at least 90.degree. C., in mixture with 5-40% by weight of an elastomer in the grafted form.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: January 19, 1993
    Assignee: Elf Atochem Italia S.r.l.
    Inventors: Carlo Sempio, Andrea Anghileri, Marc Binaghi, Tullo Ronchetti, Italo Vailati
  • Sanitary wares of acrylic or methacrylic resins and method for obtaining them
    Patent number: 4822652
    Abstract: The present invention relates to sanitary wares of acrylic or methacrylic resins, such as bathtubs, shower trays, sinks, and so forth, comprising a sheet of thermoformed resin and a reinforcing layer of fiberglass-filled foamed unsaturated polyester.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: April 18, 1989
    Assignee: Vedril S.p.A.
    Inventors: Carlo Sempio, Romeo Vailati, Tullo Ronchetti