Patents by Inventor Vincenzo Citta'

Vincenzo Citta' 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).

  • Thermotropic copolyester, process for preparing it and use thereof in the preparation of vulcanized rubbers
    Patent number: 5334695
    Abstract: A thermotropic copolyester, which displays a liquid-crystal phase of nematic type, within a desired temperature range, contains units deriving from:(a) a saturated, aliphatic dicarboxy acid;(b) 4,4'-dihydroxy-biphenyl and/or mono- or di-alkyl- or -alkenyl-derivatives thereof;(c) 4-hydroxy-benzoic acid and/or alkyl- or alkenyl-derivatives thereof.Such a copolyester improves the processability of unsaturation-containing elastomers and enhances the mechanical properties of subsequently vulcanized products.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: August 2, 1994
    Assignee: Eniricerche S.p.A.
    Inventors: Arnaldo Roggero, Ugo Pedretti, Francesco P. La Mantia, Vincenzo Citta', Alessandro Lezzi