Patents by Inventor Margherita Albano

Margherita Albano 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).

  • Fluoroelastomers endowed with improved processability and process for preparing them
    Patent number: 5219964
    Abstract: Fluoroelastomers characterized by the presence of iodine or bromine atoms at the end of the polymeric chain in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, and by a bromine content in the chain ranging from 0.05 to 2% by weight referred to the total weight of the monomeric units.Said fluoroelastomers exhibit improved characteristics of processability, particularly as regards the utilization in injection molding processes and the detaching from the molds, as well as of stability to heat.A process for preparing fluoroelastomers containing iodine or bromine atoms at the ends of the polymeric chain, in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, which process comprises polymerizing mixes of fluorinated monomers (VDF, TFE, HFP, FVE) in bulk, in suspension, in aqueous emulsion, or in solution of organic solvents by means of radical starters, in the presence of compounds capable of providing I.sup.- or Br.sup.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 15, 1993
    Assignee: Ausimont S.r.l.
    Inventors: Margherita Albano, Giulio Brinati, Vincenzo Arcella, Enzo Giannetti
  • New fluoroelastomers based on vinylidene fluoride, hexafluoropropene and tetrafluoroethylene
    Patent number: 5175223
    Abstract: The invention relates to new fluoroelastomers endowed with a low Tg and a low compression set at low temperature, characterized by the following monomeric composition:______________________________________ vinylidene fluoride: 60.5-64% by weight hexafluoropropene: 30-33% by weight tetrafluoroethylene: 5-8% by weight.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 29, 1992
    Assignee: Ausimont S.p.A.
    Inventors: Giulio Brinati, Margherita Albano, Vincenzo Arcella
  • Fluoroelastomers endowed with improved processability and process for preparing them
    Patent number: 5173553
    Abstract: Fluoroelastomers characterized by the presence of iodine or bromine atoms at the end of the polymeric chain in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, and by a bromine content in the chain ranging from 0.05 to 2% by weight referred to the total weight of the monomeric units.Said fluoroelastomers exhibit improved characteristics of processability, particularly as regards the utilization in injection molding processes and the detaching from the molds, as well as of stability to heat.A process for preparing fluoroelastomers containing iodine or bromine atoms at the ends of the polymeric chain, in an amount equal to or lower than 1 iodine or bromine atom per polymeric chain, which process comprises polymerizing mixes of fluorinated monomers (VDF, TFE, HFP, FVE) in bulk, in suspension, in aqueous emulsion, or in solution of organic solvents by means of radical starters, in the presence of compounds capable of providing I.sup.- or Br.sup.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: December 22, 1992
    Assignee: Ausimont S.r.l.
    Inventors: Margherita Albano, Giulio Brinati, Vincenzo Arcella, Enzo Giannetti