Patents by Inventor Renato Vosa

Renato Vosa 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).

  • Flexible polyester foams
    Patent number: 6054500
    Abstract: A foamed cellular material which can be obtained from foamed aromatic polyester resins with a bulk density of 50 to 700 kg/m3 by heating in vacuum to temperatures which are higher than the Tg of the material and lower than its melting point. The foamed material, generally in the form of a sheet or panel, has high-level characteristics in terms of flexibility and dimensional thermostability depending on the degree of crystallinity after the vacuum treatment.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: April 25, 2000
    Assignee: Sinco Ricerche, S.p.A.
    Inventors: Hussain Al Ghatta, Renato Vosa, Tonino Severini, Sandro Cobror
  • Polyester resin with improved color characteristics
    Patent number: 5618908
    Abstract: Aromatic polyester resins having improved color characteristics obtained incorporating in the resins in the preparation phase of the resin by polycondensation of a diol with an aromatic bicarboxylic acid a violet toner formed of 9,10 anthraquinone -2-hydroxy-4-p-toluidine or having an absorption spectrum comparable to that of the above anthraquinone compound.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: April 8, 1997
    Assignee: Sinco Engineering S.p.A.
    Inventor: Renato Vosa