Patents by Inventor Xavier Bacque

Xavier Bacque 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 an aqueous dispersion of halogenated vinyl polymers involving a basic after-treatment
    Patent number: 7026384
    Abstract: The invention relates to a process for the preparation of an aqueous dispersion of halogenated vinyl polymers by polymerization, according to which, after polymerization, a basic agent is added in an amount such that the pH of the aqueous dispersion is less than approximately 5. The invention also relates to the aqueous dispersion obtained, which can be coated onto polymeric substrates made of paper or of regenerated cellulose.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: April 11, 2006
    Assignee: SOLVAY (Société Anonyme)
    Inventors: Yves Vanderveken, Bernard Guenaire, Xavier Bacque
  • Process for the preparation of an aqueous dispersion of halogenated vinyl polymers involving a basic after-treatment
    Publication number: 20040167267
    Abstract: The invention relates to a process for the preparation of an aqueous dispersion of halogenated vinyl polymers by polymerization, according to which, after polymerization, a basic agent is added in an amount such that the pH of the aqueous dispersion is less than approximately 5. The invention also relates to the aqueous dispersion obtained, which can be coated onto polymeric substrates made of paper or of regenerated cellulose.
    Type: Application
    Filed: February 24, 2004
    Publication date: August 26, 2004
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Yves Vanderveken, Bernard Guenaire, Xavier Bacque
  • Process for the preparation of an aqueous dispersion of halogenated vinyl polymers involving a basic after-treatment
    Patent number: 6730726
    Abstract: The invention relates to a process for the preparation of an aqueous dispersion of halogenated vinyl polymers by polymerization, according to which, after polymerization, a basic agent is added in an amount such that the pH of the aqueous dispersion is less than approximately 5. The invention also relates to the aqueous dispersion obtained, which can be coated onto polymeric substrates made of paper or of regenerated cellulose.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 4, 2004
    Assignee: Solvay (Societe Anonyme)
    Inventors: Yves Vanderveken, Bernard Guenaire, Xavier Bacque
  • Organic solution of dialkyl peroxydicarbonate, process for producing it, preparation of halogenated polymers with the involvement of this solution and halogenated polymers obtained
    Patent number: 6627717
    Abstract: The invention relates to a process for the preparation of an organic solution of dialkyl peroxydicarbonate which is particularly suited for use in the aqueous suspension polymerization of halogenated monomers. The dialkyl peroxydicarbonates are employed in the aqueous suspension polymerization of halogenated monomers in the form of an organic solution in a water-insoluble organic solvent chosen from conventional chain-regulating agents for halogenated polymers.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: September 30, 2003
    Assignee: Solvay (Societe Anonyme)
    Inventors: Thierry Lannuzel, Vincent Bodart, Xavier Bacque, Guy Laurent, Fredy Declerck
  • Organic solution of dialkyl peroxydicar-bonate, process for producing it, preparation of halogenated polymers with the involvement of this solution and halogenated polymers obtained
    Publication number: 20020019555
    Abstract: The invention relates to a process for the preparation of an organic solution of dialkyl peroxydicarbonate which is particularly suited for use in the aqueous suspension polymerization of halogenated monomers. According to this process, the dialkyl peroxydicarbonate, prepared by the reaction in water of appropriate amounts of alkyl haloformate with an inorganic peroxide, is separated by extraction by means of a water-insoluble organic solvent chosen from conventional chain-regulating agents for halogenated polymers.
    Type: Application
    Filed: April 26, 2001
    Publication date: February 14, 2002
    Inventors: Thierry Lannuzel, Vincent Bodart, Xavier Bacque, Guy Laurent, Fredy Declerck
  • Organic solution of dialkyl peroxydicarbonate and process for producing thereof
    Patent number: 6255520
    Abstract: The invention relates to a process for the preparation of an organic solution of dialkyl peroxydicarbonate which is particularly suited for use in the aqueous suspension polymerization of halogenated monomers. According to this process, the dialkyl peroxydicarbonate, prepared by the reaction in water of appropriate amounts of alkyl haloformate with an inorganic peroxide, is separated by extraction by means of a water-insoluble organic solvent chosen from conventional chain-regulating agents for halogenated polymers.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: July 3, 2001
    Assignee: Solvay (Societe Anonyme)
    Inventors: Thierry Lannuzel, Vincent Bodart, Xavier Bacque, Guy Laurent, Fredy Declerck
  • Process for the manufacture of vinylidene fluoride polymers and use of vinylidene fluoride polymers for paint formulation
    Patent number: 5095081
    Abstract: Process for the manufacture of vinylidene fluoride polymers by noncontinuous polymerization of vinylidene fluoride in an aqueous medium with the use of peroxydisulphates as initiators and in the absence of emulsifying agent, in which an alkyl acetate, employed as a chain-control agent, is introduced into the initial aqueous charge intended for the polymerization.Use of the resulting vinylidene fluoride polymers for the manufacture of paints and, more particularly, of paints intended for prelacquering metal sheets with improved gloss.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: March 10, 1992
    Assignee: Solvay & Cie
    Inventors: Xavier Bacque, Pierre Lasson