Patents by Inventor Fabio E. Esguerra

Fabio E. Esguerra 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).

  • COMPOSITIONS FOR THE MANUFACTURE OF GYPSUM BOARDS, METHODS OF MANUFACTURE THEREOF, AND GYPSUM BOARDS FORMED THEREFROM
    Publication number: 20100075167
    Abstract: A composition for the manufacture of a gypsum board comprising hydrated pregelatinized starch and stucco with 0.4 to 3 wt. % of starch based on the stucco weight is disclosed. The composition provides enhanced strength in the absence of other strengthening agents.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Applicant: Georgia-Pacific Gypsum LLC
    Inventors: Stuart Brandon Gilley, Hubert C. Francis, Carla Greaves Jones, Fabio E. Esguerra
  • Gypsum board having polyvinyl alcohol binder in interface layer and method for making the same
    Patent number: 6746781
    Abstract: Paper and/or mat-faced gypsum board is prepared by applying a relatively thin coating of aqueous gypsum slurry containing a polyvinyl alcohol binder to one or two facer sheets. The polyvinyl alcohol binder provides adequate adhesion between the set gypsum core and the adjacent facer sheet(s) without the need for starch or other conventional binders. In one embodiment, polyvinyl alcohol is concentrated in one or more regions of the core adjacent to the facer sheet(s). In another embodiment, polyvinyl alcohol is applied to an aqueous gypsum slurry used to form the bulk core, such that the polyvinyl alcohol is present throughout the core.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: June 8, 2004
    Assignee: G-P Gypsum Corporation
    Inventors: Hubert C. Francis, Anne H. Ksionzyk, Fabio E. Esguerra
  • Gypsum board having polyvinyl alcohol binder in interface layer and method for making the same
    Publication number: 20040038065
    Abstract: Paper and/or mat-faced gypsum board is prepared by applying a relatively thin coating of aqueous gypsum slurry containing a polyvinyl alcohol binder to one or two facer sheets. The polyvinyl alcohol binder provides adequate adhesion between the set gypsum core and the adjacent facer sheet(s) without the need for starch or other conventional binders. In one embodiment, polyvinyl alcohol is concentrated in one or more regions of the core adjacent to the facer sheet(s). In another embodiment, polyvinyl alcohol is applied to an aqueous gypsum slurry used to form the bulk core, such that the polyvinyl alcohol is present throughout the core.
    Type: Application
    Filed: August 21, 2002
    Publication date: February 26, 2004
    Applicant: G-P GYPSUM CORPORATION
    Inventors: Hubert C. Francis, Anne H. Ksionzyk, Fabio E. Esguerra