Patents by Inventor Charles-Marie Anciaux

Charles-Marie Anciaux 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 production of a purified hydrofluoroalkane, purified hydrofluoroalkane, use of the hydrofluoroalkane and method for the analysis of a hydrofluoroalkane
    Patent number: 7695595
    Abstract: Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: April 13, 2010
    Assignee: Solvay S.A.
    Inventors: Dominique Balthasart, Charles-Marie Anciaux, Yves Mahaut, Roland Klug
  • Process for the production of a purified hydrofluoroalkane, purified hydrofluoroalkane, use of the hydrofluoroalkane and method for the analysis of a hydrofluoroalkane
    Publication number: 20060185972
    Abstract: Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations.
    Type: Application
    Filed: April 25, 2006
    Publication date: August 24, 2006
    Applicant: SOLVAY S.A.
    Inventors: Dominique Balthasart, Charles-Marie Anciaux, Yves Mahaut, Roland Klug
  • Method for obtaining a purified hydrofluoroalkane, purified hydrofluoroalkane, use of same and method for analysing same
    Patent number: 7077960
    Abstract: Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: July 18, 2006
    Assignee: Solvay (Societe Anonyme)
    Inventors: Dominique Balthasart, Charles-Marie Anciaux, Yves Mahaut, Roland Klug
  • Process for producing and purifying 1,1-difluoroethane, and product thus obtained
    Publication number: 20050107647
    Abstract: 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.
    Type: Application
    Filed: October 7, 2004
    Publication date: May 19, 2005
    Applicant: SOLVAY S.A.
    Inventors: Charles-Marie Anciaux, Vincent Wilmet, Dominique Lecroc
  • Process for producing and purifying 1,1-difluoroethane, and product thus obtained
    Patent number: 6849772
    Abstract: 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: February 1, 2005
    Assignee: Solvay (Societe Anonyme)
    Inventors: Charles-Marie Anciaux, Vincent Wilmet, Dominique Lecroc
  • Method for obtaining a purified hydrofluoroalkane, purified hydrofluoroalkane, use of same and method for analysing same
    Publication number: 20030164334
    Abstract: Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations.
    Type: Application
    Filed: January 28, 2003
    Publication date: September 4, 2003
    Inventors: Dominique Balthasart, Charles-Marie Anciaux, Yves Mahaut, Roland Klug
  • Process for producing and purifying 1,1-difluoroethane, and product thus obtained
    Publication number: 20030109759
    Abstract: 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.
    Type: Application
    Filed: October 7, 2002
    Publication date: June 12, 2003
    Inventors: Charles-Marie Anciaux, Vincent Wilmet, Dominique Lecroc
  • Process for preparing halohydrocarbons in the presence of a co-catalyst
    Patent number: 6452057
    Abstract: Halohydrocarbons comprising at least 3 carbon atoms are obtained by batchwise reaction between a haloalkane and an olefin in the presence of a catalyst and a co-catalyst. The addition of at least some of the co-catalyst is carried out gradually. At least some of the co-catalyst is recovered with a view to its re-use.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: September 17, 2002
    Assignee: Solvay (Societe Anonyme)
    Inventors: Alain Lambert, Véronique Mathieu, Charles-Marie Anciaux
  • Process for preparing halohydrocarbons
    Patent number: 6369285
    Abstract: Halohydrocarbons containing at least 3 carbon atoms are obtained by reaction between a haloalkane and an olefin in the presence of a catalyst in a reaction medium which is essentially free of water.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: April 9, 2002
    Assignee: Solvay (Societe Anonyme)
    Inventors: Véronique Mathieu, Charles-Marie Anciaux
  • PROCESS FOR PRODUCING AND PURIFYING 1,1-DIFLUOROETHANE, AND PRODUCT THUS OBTAINED
    Publication number: 20020007099
    Abstract: 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane.
    Type: Application
    Filed: November 30, 1998
    Publication date: January 17, 2002
    Inventors: CHARLES-MARIE ANCIAUX, VINCENT WILMET, DOMINIQUE LECROC