Patents by Inventor Floryan De Campo

Floryan De Campo 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).

  • PROCESS FOR THE PREPARATION OF HIGHLY PURIFIED, DIALKYL PHOSPHINIC ACIDS
    Publication number: 20060089508
    Abstract: In a process for the production of dialkylphosphinic acids, especially branched, dialkylphosphinic acids in high purity via the reaction of an alpha olefin with a hypophosphorous acid or a salt thereof, the improvement comprising conducting the reaction in the presence of a stoichiometric excess of the olefin and isolating and purifying the desired dialkylphosphinic acid product by neutralizing the monoalkylphosphinic acid by-product with an aqueous base; removing the aqueous phase in which the neutralized monoalkylphosphinic acid is preferentially solubilized; acidifying the dialkyl product in the organic phase; and isolating the purified product.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 27, 2006
    Inventors: Shiming Wo, Floryan De Campo
  • Halogenated phosphines
    Patent number: 6867330
    Abstract: Halogenated phosphines are produced by reacting a secondary phosphine with a quaternary phosphonium halide, in a solvent/carrier for the reactants.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: March 15, 2005
    Assignee: Rhodia Consumer Specialties Limited
    Inventors: Gordon Findlay Docherty, Floryan De Campo
  • Halogenated phosphines
    Publication number: 20040106816
    Abstract: Halogenated phosphines are produced by reacting a secondary phosphine with a quaternary phosphonium halide, in a solvent/carrier for the reactants.
    Type: Application
    Filed: October 1, 2003
    Publication date: June 3, 2004
    Applicant: RHODIA CONSUMER SPECIALITIES, LTD.,
    Inventors: Gordon Findlay Docherty, Floryan De Campo