Patents by Inventor Dino Dall'Acqua

Dino Dall'Acqua 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 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
  • Process for preparing trichloromelamine
    Patent number: 4727141
    Abstract: A process for preparing trichloromelamine starting from chlorine and melamine, with intermediate formation of an aqueous suspension of hexachloromelamine, characterized in that hexachloromelamine is solubilized by addition of a water-immiscible solvent, the aqueous phase is separated and the hexachloromelamine solution is brought into contact, in the presence of an activator, with a number of melamine moles which is equal to or lower than the number of moles of the remaining hexachloromelamine.
    Type: Grant
    Filed: March 25, 1987
    Date of Patent: February 23, 1988
    Assignee: Montedipe S.p.A.
    Inventors: Giampietro Corso, Vaifro Busati, Dino Dall'Acqua, Gianpietro Talamini