Patents Assigned to Vedril S.p.A.
  • Process for preparing flowable, stable and hardenable suspensions, and thus-obtained compositions
    Patent number: 5385973
    Abstract: The present invention relates to a process for preparing flowable, stable and hardenable compositions, comprising mixing:a) a liquid basis constituted by at least one polymerizable monomer;b) a finely ground mineral filler;c) a silanizing agent for the mineral filler; andd) a hydrolysis catalyst of the silanizing agent, selected from the ammonium salts of organic acids.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Vedril S.p.A.
    Inventors: Franco Marciandi, Dario Giudici, Marco Binaghi
  • Imidized acrylic polymers and process for their preparation
    Patent number: 5021514
    Abstract: Imidized acrylic polymers obtained by means of the reaction of an acrylic resin in the molten state, with at least one modifying agent having the general formula:R--X--NH--R' (I)wherein:R and R' are either equal to, or different from, each other and represent hydrogen or an alkyl, cycloalkyl, aryl or alkylaryl radical containing from 1 to 20 carbon atoms, andX is a bifunctional radical selected from the group consisting of: --CO--, --CONH--, --NHCO--, --OCO--, --SO.sub.2 --, --C.sub.6 H.sub.4 SO.sub.2 --.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: June 4, 1991
    Assignee: Vedril S.p.A.
    Inventors: Luciano Canova, Umberto Giannini, Enrico Albizzati
  • Imidized acrylic polymers and process for their preparation
    Patent number: 4968755
    Abstract: Imidized acrylic polymers obtained by means of the reaction of an acrylic resin in the molten state, with at least one modifying agent having the general formula:R--X--NH--R' (I)wherein:R and R' are either equal to, or different from, each other and represent hydrogen or an alkyl, cycloalkyl; aryl or alkylaryl radical containing from 1 to 20 carbon atoms, andX is a bifunctional radical selected from the group consisting of: --CO--, --CONH--, --NHCO--, --OCO--, --SO.sub.2 --, --C.sub.6 H.sub.4 SO.sub.2 --.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: November 6, 1990
    Assignee: Vedril S.p.A.
    Inventors: Luciano Canova, Umberto Giannini, Enrico Albizzati
  • 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