Patents by Inventor Beatriz Montalvo Barroso

Beatriz Montalvo Barroso 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 to produce polyether polyols
    Patent number: 6930210
    Abstract: The invention relates to a process to produce high-purity, low-odour polyether polyols, with very low levels of catalytic residues, by means of alkene oxide polyaddition reactions to substances that contain active hydrogens in the presence double metal cyanides as catalysts. The process is characterized in that the reaction is carried out in the presence of sepiolites and/or by subsequent treatment with sepiolites of the polyether polyols produced with double metal cyanides in the absence of sepiolites.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: August 16, 2005
    Assignee: Repsol Quimica S.A.
    Inventors: Mariano Malaga Mellado, Dolores Blanco Gonzalez, Beatriz Montalvo Barroso
  • Process to purify polyether polyols
    Publication number: 20040267056
    Abstract: The process consists of subjecting a crude polyether polyol produced by catalysis with double metal cyanide (DMC) catalysts to a microfiltration or ultrafiltration process. The resulting polyether polyol is substantially pure, has high transparency and a very low content of DMC catalyst residues.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Applicant: Repsol Quimica, S.A.
    Inventors: Mariano Malaga Mellado, Beatriz Montalvo Barroso
  • Process to produce polyether polyols
    Publication number: 20030163006
    Abstract: The invention relates to a process to produce high-purity, low-odour polyether polyols, with very low levels of catalytic residues, by means of alkene oxide polyaddition reactions to substances that contain active hydrogens in the presence double metal cyanides as catalysts. The process is characterized in that the reaction is carried out in the presence of sepiolites and/or by subsequent treatment with sepiolites of the polyether polyols produced with double metal cyanides in the absence of sepiolites.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 28, 2003
    Applicant: REPSOL OUIMICA, S.A.
    Inventors: Mariano Malaga Mellado, Dolores Blanco Gonzalez, Beatriz Montalvo Barroso