Patents by Inventor Andrea Mattiussi

Andrea Mattiussi 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 the preparation of expandable beads
    Patent number: 5086080
    Abstract: Exapandable beads of blends of poly (phenylene-ether) and a vinyl aromatic polymer are prepared by carrying out the polymerization of the vinyl aromatic monomer in presence of the poly(phenylene-ether) and of an expanding agent.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: February 4, 1992
    Assignee: Montedipe S.r.l.
    Inventors: Francesco Anfuso, Andrea Mattiussi, Savino Matarrese, Italo Borghi
  • Process for the devolatilization of polymer solutions
    Patent number: 5084134
    Abstract: A process for the devolatilization of polymer solutions including:(a) feeding the solution to a zone of indirect thermal exchange in which the ratio between the surface of thermal exchange and the flow per hour of the solution is over 80 m.sup.2 /m.sup.3 /h;(b) moving the solution forward into each channel at a speed below 0.5 mm/second;(c) keeping the solution of the polymer in each channel for about 120-200 seconds; and(d) separating the volatile components from the devolatilized polymer solution.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: January 28, 1992
    Assignee: Montedipe S.r.L.
    Inventors: Andrea Mattiussi, Claudio Buonerba, Franco Balestri, Dino Dall'Acqua, Savino Matarrese, Italo Borghi
  • Rapidly-crystallizing polyester compositions
    Patent number: 5017657
    Abstract: Rapidly-crystallizing polyester compositions comprising a polyester thermoplastic resin and a styrene polymer having an essentially syndiotactic structure.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: May 21, 1991
    Assignee: Montedipe S.r.l.
    Inventors: Leonardo Fiore, Italo Borghi, Andrea Mattiussi
  • Polymeric blends based on vinyl-aromatic polymers endowed with high tenacity and chemical resistance
    Patent number: 4814374
    Abstract: Polymeric blends based on vinyl-aromatic polymers endowed with high tenacity and chemical resistance comprising:from 10 to 90% by weight of a vinyl-chloride polymer;from 90 to 10% by weight of a vinyl-aromatic copolymer containing from 2 to 25% by weight of an ethylenically unsaturated nitrile and a quantity not exceeding 15% by weight of a rubber, are disclosed.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: March 21, 1989
    Assignee: Montedipe S.p.A.
    Inventors: Gianfranco Biglione, Andrea Mattiussi, Giorgio Vittadini
  • Coating compositions for metal substrates based on ethylene-tetrafluoroethylene copolymers
    Patent number: 4005157
    Abstract: Coating compositions for metal substrates comprising a mixture of ethylene-tetrafluoroethylene copolymers, said mixture including an ethylene-tetrafluoroethylene copolymer having 50-60 mol % of tetrafluoroethylene with a melting point from about 250.degree. C to about 315.degree. C and an ethylene-tetrafluoroethylene copolymer having more than 60 or less than 45 mol % of tetrafluoroethylene with a melting point from about 180.degree. C to about 285.degree. C and a latent solvent. The composition may optionally include a fluidizing solvent and various pigments, inert fillers and other additives.
    Type: Grant
    Filed: April 7, 1975
    Date of Patent: January 25, 1977
    Assignee: Montecatini Edison S.p.A.
    Inventors: Andrea Mattiussi, Mario Modena
  • Process for the anionic polymerization of pyrrolidone
    Patent number: 3935171
    Abstract: Pyrrolidone is anionically polymerized in the presence of alkali pyrrolidonate as catalyst and of carbamates of metals of Groups I and II of the Mendelyeev Periodic System, or of ammonium carbamates, as activators.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: January 27, 1976
    Assignee: Montedison S.p.A.
    Inventors: Aldemaro Ciaperoni, Andrea Mattiussi