Patents Assigned to Georgia-Pacific Gypsum LLC
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Patent number: 8926855Abstract: Building materials include a dampening layer which contains a plaster and a viscoelastic polymer, such as polyvinyl butyral. The dampening layer may also include a barium salt. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include a viscoelastic polymer and/or a barium salt. The plaster mixture is combined with water and/or a viscoelastic polymer dispersion, to form a slurry. The slurry is applied to a surface and set to form a sound dampening layer.Type: GrantFiled: December 20, 2012Date of Patent: January 6, 2015Assignee: Georgia-Pacific Gypsum LLCInventors: Vincent B. Thomas, Jeffrey Thomas Fields
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Publication number: 20140315008Abstract: A lightweight gypsum wallboard having a foamed gypsum core reinforced with pre-gelatinized, e.g., pre-gelled, starch and prepared by mixing an aqueous foam into a gypsum slurry comprising a source of calcined gypsum (commonly known as plaster of Paris), pre-gelled starch and a lignosulfonate dispersant; allowing the so-formed gypsum slurry to set, and then drying the set gypsum core.Type: ApplicationFiled: March 5, 2012Publication date: October 23, 2014Applicant: Georgia-Pacific Gypsum LLCInventor: Hubert C. Francis
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Patent number: 8821685Abstract: Aspects of this disclosure relate to a method of manufacturing wallboard which includes providing a first layer of facing material, creasing the first layer facing material intermittently to create a series of creased portions, providing a gypsum slurry on the first layer of facing material and providing a second layer of facing material over the gypsum slurry. Further, creasing the first layer of facing material intermittently can include intermittently creasing the first layer of facing material in a substantially linear fashion extending in a first direction of the first layer of facing material so that the first layer of facing material exhibits a linear series of creased portions extending in the first direction of the first layer of facing material and a series of portions that are not creased extending in the first direction of the first layer of facing material.Type: GrantFiled: August 1, 2012Date of Patent: September 2, 2014Assignee: Georgia-Pacific Gypsum LLCInventor: Chad A. Frank
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Publication number: 20140175322Abstract: Building materials include a dampening layer which contains a plaster, and hollow microspheres, such as polymeric microspheres. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include hollow microspheres. The plaster mixture is combined with water to form a slurry. The slurry is applied to a surface so that it sets to form a sound dampening layer. Methods of dampening sound through a structure include disposing a dampening layer on a surface of or within a wall, door, floor, ceiling, roof, or floor/ceiling assembly.Type: ApplicationFiled: October 4, 2013Publication date: June 26, 2014Applicant: Georgia-Pacific Gypsum LLCInventors: Vincent B. Thomas, Jeffrey Thomas Fields
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Publication number: 20140178624Abstract: Water-resistant gypsum boards and compositions and methods for their manufacture are provided. The methods include forming a mixture of water, hydroxide, and siliconate, adding siloxane to the mixture, adding calcium sulfate hemi-hydrate to the mixture to form an aqueous slurry, curing the aqueous slurry under heat, drying the aqueous slurry, and forming a water-resistant gypsum board.Type: ApplicationFiled: December 17, 2013Publication date: June 26, 2014Applicant: Georgia-Pacific Gypsum LLCInventor: Robert William Tilford
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Publication number: 20140175320Abstract: Building materials include a dampening layer which contains a plaster and a viscoelastic polymer, such as polyvinyl butyral. The dampening layer may also include a barium salt. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include a viscoelastic polymer and/or a barium salt. The plaster mixture is combined with water and/or a viscoelastic polymer dispersion, to form a slurry. The slurry is applied to a surface and set to form a sound dampening layer.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Applicant: Georgia-Pacific Gypsum LLCInventors: Vincent B. Thomas, Jeffrey Thomas Fields
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Patent number: 8691007Abstract: A wallboard, a method of preparing a wallboard, and a method of making a gypsum slurry to prepare a wallboard are provided. The wallboard includes a set gypsum dihydrate derived substantially from a non-fibrous form of calcium sulfate and selected from the group consisting of anhydrous gypsum and gypsum hemihydrate. The wallboard also includes an aerogel dispersed in the gypsum dihydrate.Type: GrantFiled: September 20, 2012Date of Patent: April 8, 2014Assignee: Georgia-Pacific Gypsum LLCInventors: Susnata Samanta, Hubert Francis
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Patent number: 8673201Abstract: The present invention describes a fire resistant building material composition, useful for example as a fire door core and to a method of making this composition. The building material of the present invention is prepared from an aqueous mixture of predominately expanded perlite, a small amount of a binder component consisting essentially of calcined gypsum and an organic binder, and optionally a fibrous reinforcement.Type: GrantFiled: June 11, 2012Date of Patent: March 18, 2014Assignee: Georgia-Pacific Gypsum LLCInventor: Hubert C. Francis
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Publication number: 20140054107Abstract: A door structure is provided having two outer dampening layers, each outer dampening layer having a base surface and a damping surface, and an inner compartmentalized layer adjacent to the damping surfaces of the two outer dampening layers, the inner compartmentalized layer includes at least two compartments, wherein the damping surfaces of the two outer dampening layers are substantially unconstrained relative to the inner compartmentalized layer such that the damping surfaces are deformable.Type: ApplicationFiled: August 12, 2013Publication date: February 27, 2014Applicant: Georgia-Pacific Gypsum LLCInventors: Vincent B. Thomas, Steven D. Brown, Scott J. Abolt
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Publication number: 20140050902Abstract: A laminated structure comprises a first external layer and a second external layer; an internal layer disposed between the first and the second external layers; a first adhesive layer disposed between the first external layer and the internal layer, wherein the first adhesive layer is patterned to cover only a first portion of the internal layer; and a second adhesive layer disposed between the second external layer and the internal layer, wherein the second adhesive layer is patterned to cover only a second portion of the internal layer on a side opposite the first adhesive layer, and wherein the first portion is different than the second portion.Type: ApplicationFiled: October 24, 2013Publication date: February 20, 2014Applicant: Georgia-Pacific Gypsum LLCInventors: Douglas C. Eckman, Vincent B. Thomas, Keshav S. Gautam
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Publication number: 20140020603Abstract: The present application provides a method for analyzing a raw material for manufacturing of gypsum products, analyzing a plurality of gypsum products, and the gypsum products produced therefrom. Desirably, the analyzing of the raw material is conducted using prompt gamma neutron activation analysis.Type: ApplicationFiled: July 18, 2013Publication date: January 23, 2014Applicant: Georgia-Pacific Gypsum LLCInventors: William E. Barger, Carmine Perri
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Patent number: 8590272Abstract: A laminated structure comprises a first external layer and a second external layer; an internal layer disposed between the first and the second external layers; a first adhesive layer disposed between the first external layer and the internal layer, wherein the first adhesive layer is patterned to cover only a first portion of the internal layer; and a second adhesive layer disposed between the second external layer and the internal layer, wherein the second adhesive layer is patterned to cover only a second portion of the internal layer on a side opposite the first adhesive layer, and wherein the first portion is different than the second portion.Type: GrantFiled: May 16, 2011Date of Patent: November 26, 2013Assignee: Georgia-Pacific Gypsum LLCInventors: Vincent B. Thomas, Douglas C. Eckman, Keshav S. Gautam
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Publication number: 20130251986Abstract: A building material includes a paneled article having a first side and a second side. A layer of encapsulated latent heat storage material is disposed on the first side of the panel and a coating is disposed over the layer of encapsulated latent heat storage material.Type: ApplicationFiled: March 15, 2011Publication date: September 26, 2013Applicant: GEORGIA-PACIFIC GYPSUM LLCInventors: Joel T. Charlton, Keshav S. Gautam
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Patent number: 8461067Abstract: A gypsum board which comprises a set gypsum core sandwiched between and faced with fibrous mats, wherein a free surface of one of said mats is pre-coated with a combination of a mineral pigment, optionally an inorganic adhesive binder and an organic binder, preferably a hydrophobic, UV resistant polymer latex adhesive binder applied to said surface as an aqueous coating composition, said aqueous coating composition upon drying and setting providing a pre-coated mat satisfying certain morphology requirements.Type: GrantFiled: April 22, 2011Date of Patent: June 11, 2013Assignee: Georgia-Pacific Gypsum LLCInventors: Russell Smith, Brian Randall
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Publication number: 20130074737Abstract: A wallboard, a method of preparing a wallboard, and a method of making a gypsum slurry to prepare a wallboard are provided. The wallboard includes a set gypsum dihydrate derived substantially from a non-fibrous form of calcium sulfate and selected from the group consisting of anhydrous gypsum and gypsum hemihydrate. The wallboard also includes an aerogel dispersed in the gypsum dihydrate.Type: ApplicationFiled: September 20, 2012Publication date: March 28, 2013Applicant: Georgia-Pacific Gypsum LLCInventor: Georgia-Pacific Gypsum LLC
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Publication number: 20120295059Abstract: Aspects of this disclosure relate to a method of manufacturing wallboard which includes providing a first layer of facing material, creasing the first layer facing material intermittently to create a series of creased portions, providing a gypsum slurry on the first layer of facing material and providing a second layer of facing material over the gypsum slurry. Further, creasing the first layer of facing material intermittently can include intermittently creasing the first layer of facing material in a substantially linear fashion extending in a first direction of the first layer of facing material so that the first layer of facing material exhibits a linear series of creased portions extending in the first direction of the first layer of facing material and a series of portions that are not creased extending in the first direction of the first layer of facing material.Type: ApplicationFiled: August 1, 2012Publication date: November 22, 2012Applicant: Georgia-Pacific Gypsum LLCInventor: Chad Andrew Frank
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Publication number: 20120248655Abstract: The present invention describes a fire resistant building material composition, useful for example as a fire door core and to a method of making this composition. The building material of the present invention is prepared from an aqueous mixture of predominately expanded perlite, a small amount of a binder component consisting essentially of calcined gypsum and an organic binder, and optionally a fibrous reinforcement.Type: ApplicationFiled: June 11, 2012Publication date: October 4, 2012Applicant: Georgia-Pacific Gypsum LLCInventor: Hubert C. Francis
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Patent number: 8257524Abstract: Aspects of this disclosure relate to a method of manufacturing wallboard which includes providing a first layer of facing material, creasing the first layer facing material intermittently to create a series of creased portions, providing a gypsum slurry on the first layer of facing material and providing a second layer of facing material over the gypsum slurry. Further, creasing the first layer of facing material intermittently can include intermittently creasing the first layer of facing material in a substantially linear fashion extending in a first direction of the first layer of facing material so that the first layer of facing material exhibits a linear series of creased portions extending in the first direction of the first layer of facing material and a series of portions that are not creased extending in the first direction of the first layer of facing material.Type: GrantFiled: November 7, 2008Date of Patent: September 4, 2012Assignee: Georgia-Pacific Gypsum LLCInventor: Chad Andrew Frank
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Patent number: 8221542Abstract: The present invention describes a fire resistant building material composition, useful for example as a fire door core and to a method of making this composition. The building material of the present invention is prepared from an aqueous mixture of predominately expanded perlite, a small amount of a binder component consisting essentially of calcined gypsum and an organic binder, and optionally a fibrous reinforcement.Type: GrantFiled: December 13, 2007Date of Patent: July 17, 2012Assignee: Georgia-Pacific Gypsum LLCInventor: Hubert C. Francis
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Publication number: 20120082858Abstract: A method of manufacturing a water-resistant gypsum article, comprising sonicating a water-resistance additive in water to form a emulsion; combining the emulsion, calcined gypsum, and gauging water to form a slurry; and forming and setting the slurry to form the water-resistant gypsum article.Type: ApplicationFiled: December 21, 2010Publication date: April 5, 2012Applicant: GEORGIA-PACIFIC GYPSUM LLCInventor: Andrzej A. Przybysz