Patents by Inventor Dominique Lecroc

Dominique Lecroc 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 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
  • 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 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
  • Refrigerant of 1,1-difluoroethylene
    Patent number: 6054064
    Abstract: Refrigerants comprising 1,1-difluoroethylene and one or more hydrofluoroalkanes, in particular difluoromethane (R-32), trifluoromethane (R-23), 1,1-difluoroethane (R-152a), 1,1,1-trifluoroethane (R-143a), 1,1,1,2-tetrafluoroethane (R-134a) and/or pentafluoroethane (R-125).
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: April 25, 2000
    Assignees: Solvay (Societe Anonyme), Solvay Fluor und Derivate GmbH
    Inventors: Bruno D'Aubarede, Dominique Balthasart, Mireille Paulus, Pierre Barthelemy, Holger Koenig, Dominique Lecroc, Jean-Pierre Vogel, Hans Buchwald, Reinhold Doering, Joachim Hellmann