Patents by Inventor Larry R. Graves

Larry R. Graves 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).

  • Modified urea-formaldehyde binder for making fiber mats
    Patent number: 6084021
    Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with a water-soluble styrene-maleic anhydride copolymer is used in the preparation of fiber mats.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: July 4, 2000
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Shau-Gan Chang, Larry R. Graves, Charles R. Hunter, Stacey L. Wertz
  • Modified urea-formaldehyde binder for making fiber mats
    Patent number: 5914365
    Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with a water-soluble styrene-maleic anhydride copolymer is used in the preparation of fiber mats.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 22, 1999
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Shau-Gan Chang, Larry R. Graves, Charles R. Hunter, Stacey L. Wertz
  • Urea-formaldehyde resin composition and method of preparation thereof
    Patent number: 5674971
    Abstract: A urea-formaldehyde resin useful as a binder for making a variety of products, and a method for making the resin. The resin is prepared by reacting formaldehyde, urea, and ammonia in at least a two under alkaline conditions and optionally neutralizing the resin in a third step. The urea-formaldehyde resin thus produced has good resistance to hydrolysis, cures quickly, and is characterized by low formaldehyde emissions (release).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 7, 1997
    Assignee: Georgia-Pacific Resins, Inc.
    Inventor: Larry R. Graves
  • Fire resistant mat
    Patent number: 5484653
    Abstract: A non-woven fiber mat for use as a backing material for various components used in the building industry, and having improved fire resistant qualities. The mat comprises a blend of mineral fibers and glass fibers bonded together with a fire resistant binder system. The binder system comprises a mixture of a fire resistant latex and an aqueous aldehyde condensation polymer-based thermosetting resin. The preferred weight ratio of the latex to the aldehyde condensation polymer is at least 1:1 on a non-volatile basis. The binder may optionally further contain an aqueous silica colloid.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: January 16, 1996
    Assignee: Herbert Malarkey Roofing Company
    Inventors: Thomas D. Kennedy, Michael O. Malarkey, Larry R. Graves
  • Fire resistant cured binder for fibrous mats
    Patent number: 5389716
    Abstract: A binder composition for fibrous mats, preferably inorganic fibrous mats, which is fire resistant when cured is provided. The binder composition comprises a stable mixture of an aqueous aldehyde condensation polymer-based resin, a fire retardant latex and, optionally, an effective amount of an aqueous silica colloid, wherein the weight ratio of the latex to the resin is at least 1:1 on a non-volatile weight basis. The effective amount of the silica colloid is an amount sufficient to enhance the flame resistant property of the binder composition after curing and yet remain compatible with the components of the binder composition prior to curing.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: February 14, 1995
    Assignee: Georgia-Pacific Resins, Inc.
    Inventor: Larry R. Graves
  • Urea-formaldehyde resin composition and method of manufacture thereof
    Patent number: 5362842
    Abstract: A urea-formaldehyde resin useful as a binder for making a variety of products, and of a method for making the resin. The resin is prepared by reacting formaldehyde, urea, triethanolamine, and optionally ammonia in a two-step process, first under alkaline conditions and then under acidic conditions. The urea-formaldehyde resin thus produced has good resistance to hydrolysis, cures quickly without smoking, and is characterized by low formaldehyde release.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: November 8, 1994
    Assignee: Georgia Pacific Resins, Inc.
    Inventors: Larry R. Graves, Jay V. Mueller
  • Fire resistant mat
    Patent number: 5308692
    Abstract: A non-woven fiber mat for use as a backing material for various components used in the building industry, and having improved fire resistant qualities. The mat comprises a blend of mineral fibers and glass fibers bonded together with a fire resistant binder system. The binder system comprises a mixture of a fire resistant latex and an aqueous aldehyde condensation polymer-based thermosetting resin. The preferred weight ratio of the latex to the aldehyde condensation polymer is at least 1:1 on a non-volatile basis. The binder may optionally further contain an aqueous silica colloid.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: May 3, 1994
    Assignee: Herbert Malarkey Roofing Company
    Inventors: Thomas D. Kennedy, Michael O. Malarkey, Larry R. Graves