Patents by Inventor Bobby Lee Williamson

Bobby Lee Williamson 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).

  • Binders containing an aldehyde-based resin and an isocyanate-based resin and methods for making composite lignocellulose products therefrom
    Patent number: 11780112
    Abstract: Binders, methods for making same, and methods for making composite lignocellulose products therefrom. The binder can include about 30 wt % to about 40 wt % of solids that include a urea-modified aldehyde-based resin; about 0.1 wt % to about 3 wt % of solids that include an isocyanate-based resin; about 0.1 wt % to about 12 wt % of an extender; and about 50 wt % to about 62 wt % of water, where all weight percent values are based on a total weight of the binder. The binder can have a sodium hydroxide equivalent weight alkalinity of about 3 wt % to about 9 wt %.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: October 10, 2023
    Inventors: Juan José Joaquin Valenzuela Valdés, Ildolfo Alfonso Duran Retamal, Carlos Roberto Maldonado Rodríguez, Bobby Lee Williamson
  • BINDERS CONTAINING AN ALDEHYDE-BASED RESIN AND AN ISOCYANATE-BASED RESIN AND METHODS FOR MAKING COMPOSITE LIGNOCELLULOSE PRODUCTS THEREFROM
    Publication number: 20210129375
    Abstract: Binders, methods for making same, and methods for making composite lignocellulose products therefrom. The binder can include about 30 wt % to about 40 wt % of solids that include a urea-modified aldehyde-based resin; about 0.1 wt % to about 3 wt % of solids that include an isocyanate-based resin; about 0.1 wt % to about 12 wt % of an extender; and about 50 wt % to about 62 wt % of water, where all weight percent values are based on a total weight of the binder. The binder can have a sodium hydroxide equivalent weight alkalinity of about 3 wt % to about 9 wt %.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Applicant: Georgia-Pacific Chemicals LLC
    Inventors: Joaquin Valenzuela Valdés, Ildolfo Duran Retamal, Carlos Maldonado Rodríguez, Bobby Lee Williamson
  • Adhesive compositions for bonding composites
    Patent number: 8754153
    Abstract: The present invention relates to a non-thermosetting composition made by reacting epichlorohydrin and a primary amine, to the use of that composition for making thermosetting (curable) adhesives suitable for bonding composites, to a method of preparing composites using the thermosetting (curable) adhesives, and to the related composites bonded with the thermosetting (curable) adhesives.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 17, 2014
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: Bobby Lee Williamson, Richard M. Rammon