Patents by Inventor Rosa Maria Barcelo

Rosa Maria Barcelo 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).

  • Concentrated aqueous betaine surfactant compositions and process for their preparation
    Patent number: 6683033
    Abstract: A concentrated aqueous betaine surfactant composition consisting essentially of a betaine compound and from 0.5 to 3.5 wt %, based on the total weight of the composition, of at least one fluidizing additive selected from the group consisting of (i) a fatty acid dimer composition and (ii) phosphoric esters of fatty alcohols or polyethoxylated fatty alcohols, the composition containing a solid content of at least 40 wt %, said composition having a reduced viscosity and a low gel point.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: January 27, 2004
    Assignee: Kao Corporation
    Inventors: Josep María González, María José Bermejo, Rosa María Barceló, Josep Vilaret, Nuria Siscart
  • Concentrated aqueous betaine-type surfactant compositions and process for their preparation
    Publication number: 20030171229
    Abstract: This invention provides concentrated aqueous betaine-type surfactant compositions having reduced viscosity and a low gel point.
    Type: Application
    Filed: November 13, 2002
    Publication date: September 11, 2003
    Applicant: KAO CORPORATION
    Inventors: Josep Maria Gonzalez, Maria Jose Bermejo, Rosa Maria Barcelo, Josep Vilaret, Nuria Siscart
  • Concentrated aqueous betaine-type surfactant compositions and process for their preparation
    Patent number: 6207629
    Abstract: A concentrated aqueous betaine surfactant composition consisting essentially of a betaine compound and from 0.5 to 3.5 wt %, based on the total weight of the composition, of at least one fluidizing additive selected from the group consisting of (i) a fatty acid dimer composition and (ii) phosphoric esters of fatty alcohols or polyethoxylated fatty alcohols, the composition containing a solid content of at least 40 wt %, said composition having a reduced viscosity and a low gel point.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: March 27, 2001
    Assignee: Kao Corporation
    Inventors: Josep María González, María José Bermejo, Rosa María Barceló, Josep Vilaret, Nuria Siscart