Patent application number | Description | Published |
20090151602 | NON-CEMENT FIRE DOOR CORE - 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. | 06-18-2009 |
20090151603 | CEMENT-BASED FIRE DOOR CORE - The present invention describes an improved building material composition, useful for example as a fire door core. The building material of the present invention is prepared by compressing an aqueous mixture of expanded perlite and a fast setting, cementitious composition consisting essentially of a hydraulic cement, preferably Portland cement, and a pozzolan additive selected from the group consisting of metakaolin, VCAS and mixtures thereof, and preferably also includes an organic binder and a fibrous reinforcement. | 06-18-2009 |
20090152519 | LIGHT WEIGHT METAL FIRE DOOR CORE - 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 where the building material of the present invention is prepared from an aqueous slurry of calcined gypsum, paper fibers, a water insoluble organic binder, fiber reinforcement and a set retarder. | 06-18-2009 |
20090178357 | WALLBOARD JOINT SYSTEM - The present invention relates to a drywall tape or joint tape comprising a non-woven web of fibers having a coating of a filled, film-forming polymer on one side and being non-coated on an opposite side for covering seams or for repairs generally in connection with fiber mat-faced gypsum wallboard, and more particularly pertains to a method for finishing joint seams and making other repairs in connection with a coated fiber mat-faced gypsum wallboard. | 07-16-2009 |
20090255443 | GYPSUM-BASED FLOOR UNDERLAYMENT - A flooring composition for mixing with water to produce a self-leveling slurry that quickly hydrates to form a high strength floor underlayment comprising a dry mixture of (1) beta gypsum produced by a continuous method; (2) Class C fly ash; (3) a conventional water reducing aid such as sulfonated melamines, sulfonated naphthalenes and their related formaldehyde condensates, and (4) a conventional set retarder. | 10-15-2009 |
20090306251 | FLY ASH-BASED FLOOR PATCHING COMPOSITION - A floor patching composition for mixing with water to produce a self-leveling slurry that quickly hydrates to form an acceptable patch comprising a dry mixture of (1) Class C fly ash, (2) a calcium aluminate cement, (3) an organic binder along with (4) a cellulose ether, in part to facilitate mixing of the dry ingredients and preferably (5) an antimicrobial preservative and (6) metakaolin clay. | 12-10-2009 |
20100075167 | COMPOSITIONS FOR THE MANUFACTURE OF GYPSUM BOARDS, METHODS OF MANUFACTURE THEREOF, AND GYPSUM BOARDS FORMED THEREFROM - 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. | 03-25-2010 |
20100083879 | LOW VOC JOINT COMPOSITION - A drying type, low VOC filler or joint composition that when mixed with water to produce a wet, paste-like mixture, can be spread easily to fill wallboard joints and other wallboard surface defects and imperfections; dries to a solid mass and can be sanded to a smooth finish. | 04-08-2010 |
20120248655 | Non-Cement Fire Door Core - 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. | 10-04-2012 |
20140302280 | GYPSUM BOARDS MADE WITH HIGH PERFORMANCE BIO-BASED FACERS AND METHOD OF MAKING THE SAME - A gypsum panel that incorporates a plant fiber other than paper is disclosed. The plant fiber material may be in the form of a facing material adhered to at least one side of the gypsum panel or in the form of loose fibers integrated with the gypsum panel as a matrix or both. Further, the plant fiber may be combined with conventional gypsum panel additives, is fully recyclable and environmentally sustainable. The present invention further relates to a method of making such a gypsum panel. | 10-09-2014 |
20140315008 | LIGHTWEIGHT GYPSUM WALLBOARD - 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. | 10-23-2014 |