Patents by Inventor Arvin YU

Arvin YU 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).

  • Biobased highly functional oligomers and thermosets therefrom
    Patent number: 9765233
    Abstract: The invention relates to a polyfunctional bio-based oligomer which is the reaction product of a) at least one epoxidized sucrose fatty acid ester resin; b) at least one ethylenically unsaturated acid selected from methacrylic acid, acrylic acid, crotonic acid, and mixtures thereof; c) at least one acid anhydride selected from acetic acid anhydride, acrylic acid anhydride, methacrylic acid anhydride, crotonic acid anhydride, and mixtures thereof; d) optionally, at least one catalyst; and e) optionally, at least one inhibitor. In a polyfunctional bio-based oligomer of the invention, the ratio of ethylenically unsaturated acid to acid anhydride ranges from 90:1 to 1:90; at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one ethylenically unsaturated acid; and at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one acid anhydride.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 19, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Dean C. Webster, Arvin Yu
  • BIOBASED HIGHLY FUNCTIONAL OLIGOMERS AND THERMOSETS THEREFROM
    Publication number: 20160311754
    Abstract: The invention relates to a polyfunctional bio-based oligomer which is the reaction product of a) at least one epoxidized sucrose fatty acid ester resin; b) at least one ethylenically unsaturated acid selected from methacrylic acid, acrylic acid, crotonic acid, and mixtures thereof; c) at least one acid anhydride selected from acetic acid anhydride, acrylic acid anhydride, methacrylic acid anhydride, crotonic acid anhydride, and mixtures thereof; d) optionally, at least one catalyst; and e) optionally, at least one inhibitor. In a polyfunctional bio-based oligomer of the invention, the ratio of ethylenically unsaturated acid to acid anhydride ranges from 90:1 to 1:90; at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one ethylenically unsaturated acid; and at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one acid anhydride.
    Type: Application
    Filed: April 21, 2016
    Publication date: October 27, 2016
    Inventors: Dean C. WEBSTER, Arvin YU