Patents by Inventor Lila ARIAS

Lila ARIAS 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).

  • Friction reducing copolymers and method of preparation thereof
    Patent number: 11845858
    Abstract: A friction reducer comprising a copolymer of acrylamide, an anionic monomer, a zwitterionic monomer or a cationic monomer, a physical ligand or a chemical ligand, wherein the acrylamide amounts to at least 50% (w/w) of the total monomer content. The friction reducer is useful in hydraulic fracturing operations and is obtained by controlled radical polymerization at a temperature between 30° C. and 70° C. using iodine as polymerization control agent.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: December 19, 2023
    Assignee: YPF TECNOLOGIA S.A.
    Inventors: Juan Martín Giussi, Lila Arias, Roque Carlos Dietrich, Isabel Vega, Sofía Rivelli, Juan Manuel Padró, Frederico Irou Roschzttardtz, Gabriel Lombardo, Paula Cecilia Dos Santos Claro
  • FRICTION REDUCING COPOLYMERS AND METHOD OF PREPARATION THEREOF
    Publication number: 20220186018
    Abstract: A friction reducer comprising a copolymer of acrylamide, an anionic monomer, a zwitterionic monomer or a cationic monomer, a physical ligand or a chemical ligand, wherein the acrylamide amounts to at least 50% (w/w) of the total monomer content. The friction reducer is useful in hydraulic fracturing operations and is obtained by controlled radical polymerization at a temperature between 30° C. and 70° C. using iodine as polymerization control agent.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Juan Martín GIUSSI, Lila ARIAS, Roque Carlos DIETRICH, Isabel VEGA, Sofía RIVELLI, Juan Manuel PADRÓ, Frederico Irou ROSCHZTTARDTZ, Gabriel LOMBARDO, Paula Cecilia DOS SANTOS CLARO