Patents by Inventor John Barbosa

John Barbosa 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).

  • Patent number: 11965050
    Abstract: The present invention further relates to a waterborne dispersion comprising (A) polymer P; (B) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (C) crosslinker, characterized in that the polymer P is crosslinkable and comprises ethylenically unsaturated monomer(s) bearing crosslinkable functional groups different from monomer(s) (i) and monomer(s) (ii) (monomer(s) (iii)) in an amount of from 1 to 10 wt. %, based on the total weight of monomers used to prepare the polymer P, the amount of lock copolymer is higher than 1 wt. % and lower than 30 wt.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 23, 2024
    Assignee: Covestro (Netherlands) B.V.
    Inventors: Michael Arnoldus Jacobus Schellekens, Johannes Hendrikus De Bont, John Barbosa, Jon Andrew Cronin, Charles Shearer, Matthew Stewart Gebhard, Gerardus Cornelis Overbeek
  • Patent number: 11459419
    Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 4, 2022
    Assignee: COVESTRO (NETHERLANDS) B.V.
    Inventors: Michael Arnoldus Jacobus Schellekens, Johannes Hendrikus De Bont, John Barbosa, Jon Andrew Cronin, Charles Shearer, Matthew Stewart Gebhard, Gerardus Cornelis Overbeek
  • Publication number: 20210079209
    Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 18, 2021
    Inventors: Michael Arnoldus Jacobus SCHELLEKENS, Johannes Hendrikus DE BONT, John BARBOSA, Jon Andrew CRONIN, Charles SHEARER, Matthew Stewart GEBHARD, Gerardus Cornelis OVERBEEK
  • Publication number: 20210070977
    Abstract: The present invention further relates to a waterborne dispersion comprising (A) polymer P; (B) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (C) crosslinker, characterized in that the polymer P is crosslinkable and comprises ethylenically unsaturated monomer(s) bearing crosslinkable functional groups different from monomer(s) (i) and monomer(s) (ii) (monomer(s) (iii)) in an amount of from 1 to 10 wt. %, based on the total weight of monomers used to prepare the polymer P, the amount of lock copolymer is higher than 1 wt. % and lower than 30 wt.
    Type: Application
    Filed: December 18, 2018
    Publication date: March 11, 2021
    Inventors: Michael Arnoldus Jacobus SCHELLEKENS, Johannes Hendrikus DE BONT, John BARBOSA, Jon Andrew CRONIN, Charles SHEARER, Matthew Stewart GEBHARD, Gerardus Cornelis OVERBEEK
  • Publication number: 20090278387
    Abstract: An expandable and convertible sofa chair consisting of a base, backrest, two armrests, four small corner cushions, four long edge cushions, centre cushion, two straight connector cushions, two L shaped connector cushions, four feet, four decorative front/back side plates, tabletop plate, centre support board, and four locking mechanisms. The base is a hollowed out square box with a bottom and thick walls that house several cavities symmetrically aligned to mate with the parts that have extruding prongs. When two units are placed side by side the four small corner cushions are removed and replaced with two connector cushions twice the size. The armrests of the touching walls are replaced with long edge cushions and all are locked into place by a locking mechanism at the bottom of the base walls, creating a loveseat. Repeating this procedure creates several different styles, shapes and sizes of furnishings.
    Type: Application
    Filed: May 12, 2008
    Publication date: November 12, 2009
    Inventor: John Barbosa