Patents by Inventor Pierluigi Magagnini

Pierluigi Magagnini 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 copolyester having a nematic structure of the liquid-crystalline phase
    Patent number: 4833229
    Abstract: A thermotropic copolyester, having a nematic structure of the liquid-crystalline phase within a desired range of mesophase temperature, contains units derived from a saturated aliphatic dicarboxylic acid, 4,4'-dihydroxy-biphenyl and p-hydroxybenzoic acid, in a mutual ratio of from 1:1:0.5 to 1:1:8.This thermotropic copolyester is produced by copolymerizing in the molten state a saturated aliphatic dicarboxylic acid, 4,4'-diacyloxybiphenyl and p-acyloxybenzoic acid.The use is disclosed of the thermotropic copolyester as a self-reinforced material, and as a reinforcer material for such traditional thermoplastic polymers as polybutylene terephthalate, polyethylene terephthalate, polycarbonate and nylon.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: May 23, 1989
    Assignee: Eniricerche S.p.A.
    Inventors: Pierluigi Magagnini, Ugo Pedretti, Giovanni Perego, Bruno Bresci, Simona Carrozzino, Arnaldo Roggero