Patents by Inventor Julian Gonzalez Rivero

Julian Gonzalez Rivero 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 unsaturated polyester polyols
    Patent number: 6927252
    Abstract: The process consists of making react (i) an alkylene oxide polyether polyol, (ii) an organic compound which has an ethylenic unsaturation and a hydroxyl, carboxyl, anhydride, isocyanate or epoxy group and (iii) an alkylene oxide selected from ethylene oxide, propylene oxide and mixtures thereof, in the presence of an effective quantity of a potassium naphthenate catalyst. The unsaturated polyester polyols produced have a reduced degree of unsaturation and are useful in the synthesis of polymeric polyols with good viscosity, filterability and particle size properties, suitable for the production of cellular polyurethane compounds.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: August 9, 2005
    Assignee: Repsol Quimica, S.A.
    Inventors: Mariano Malaga Mellado, Julian Gonzalez Rivero
  • Process to produce unsaturated polyester polyols
    Publication number: 20040266977
    Abstract: The process consists of making react (i) an alkylene oxide polyether polyol, (ii) an organic compound which has an ethylenic unsaturation and a hydroxyl, carboxyl, anhydride, isocyanate or epoxy group and (iii) an alkylene oxide selected from ethylene oxide, propylene oxide and mixtures thereof, in the presence of an effective quantity of a potassium naphthenate catalyst. The unsaturated polyester polyols produced have a reduced degree of unsaturation and are useful in the synthesis of polymeric polyols with good viscosity, filterability and particle size properties, suitable for the production of cellular polyurethane compounds.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Applicant: Repsol Quimica, S.A., Paseo de la Castellana
    Inventors: Mariano Malaga Mellado, Julian Gonzalez Rivero