Patents by Inventor Enrico Montani

Enrico Montani 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 copolyesteramide, process for its preparation and utilization
    Patent number: 5248753
    Abstract: A thermotropic copolyesteramide, with a nematic structure of the liquid crystalline phase within a desired temperature range of the mesophase, contains a unit derived from: (a) a saturated .alpha., .omega.-dicarboxylic acid; (b) 4,4'-dihydroxydiphenyl; (c) p-aminobenzoic acid; (d) 2,6-dihydroxyriaphthoic acid.A copolyesteramide of this type exhibits improved characteristics, especially in regard to its elastic modulus and tensile strength, when used as a self-reinforced material or as a reinforcement material for traditional thermoplastic polymers.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 28, 1993
    Assignee: Eniricerche S.p.A.
    Inventors: Ugo Pedretti, Arnaldo Roggero, Francesco P. La Mantia, Enrico Montani, Pierluigi Magagnini
  • Thermotropic copolyesteramide, process for its preparation and utilization
    Patent number: 5243017
    Abstract: A thermotropic copolyesteramide, with a nematic structure of the liquid crystalline phase within a desired temperature range of the mesophase, contains metered amounts of units derived from: (a) a saturated aliphatic -dicarboxylic acid; (b) 4,4'-dihydroxydiphenyl; (c) 4-hydroxybenzoic acid and (d) 4-aminobenzoic acid or (d') 4-aminophenol.This thermotropic copolyesteramide, produced by the copolymerization of monomers in the molten state, is a material with self-reinforcing characteristics capable of yielding, by normal injection or extrusion processes, remarkable molecular orientations which impart a high rigidity to the manufactured products.The copolyesteramide may be used as a reinforcement material for traditional thermoplastic polymers, by usual techniques.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 7, 1993
    Assignee: Eniricerche, S.p.A.
    Inventors: Ugo Pedretti, Cesarina Bonfanti, Enrico Montani, Arnaldo Roggero, Francesco P. La Mantia
  • Thermotropic copolyester and process for preparing it and use thereof
    Patent number: 4963642
    Abstract: A thermotropic copolyester, having a liquid-crystallne mesophase of nematic structure within a desired range of temperatures, contains units derived from:(a) a saturated aliphatic bicarboxy acid;(b) 4,4'-dihydroxy-biphenyl;(c) p-hydroxybenzoic acid; and(d) 2,6-hydroxynaphthoic acid.Such a thermotropic copolyester displays improved characteristics, in particular as regards its extensional modulus and its tensile strength, when is used as a self-reinforced material, or as a reinforcer material for traditional thermoplastic polymers.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: October 16, 1990
    Assignee: Eniricerche S.p.A.
    Inventors: Arnaldo Roggero, Ugo Pedretti, Pier L. Magagnini, Enrico Montani, Hassan A. Hakemi, Bruno Bresci, Francesco P. La Mantia
  • Thermotropic copolyazomethines and process for preparing them
    Patent number: 4888409
    Abstract: Thermotropic copolyazomethines having a mesophase temperature range lying within a desired range of values are obtained by copolymerizing terephthalic aldehyde with at least two different 1,n-bis(4-aminophenoxy)alkanes.Such copolyazomethines are particularly useful as reinforcing materials for the usual thermoplastic polymers, such as polycarbonate, polybutyleneterephthalate, polyethyleneterephthalate and polyamides.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: December 19, 1989
    Assignee: Eniricerche S.p.A.
    Inventors: Ugo Pedretti, Cesarina Bonfanti, Enrico Montani, Hassan A. Hakemi, Arnaldo Roggero