Class / Patent application number | Description | Number of patent applications / Date published |
428294700 | Fiber embedded in a layer derived from a water-settable material (e.g., cement, gypsum, etc.) | 11 |
20080199677 | BEARING WALL BOARD AND A METHOD OF PRODUCING THE SAME - The present invention provides a bearing wall with a low specific gravity of as low as 1.0 or less and a wall-magnification of 2.5 or more, which is excellent in strength, fire-safety, workability, dimensional stability, freezing resistance, water resistance and earthquake resistance, and a method for manufacturing the board. The board is produced by a method that contains the steps of: preparing a slurry by dispersing a cement-based hydraulic material, a fiber reinforcing material and a lightweight aggregate into water, adding a saturated carboxylic acid to the slurry, and then forming the slurry into a sheet, dehydrating the sheet, pressing the sheet and curing the sheet. The fiber reinforcing material includes a refined fiber with a freeness of 650 ml or less and an unrefined fiber and the saturated carboxylic acid is preferably a stearic acid-based carboxylic acid or a succinic acid-based carboxylic acid. | 08-21-2008 |
20090047497 | GRASS (HERBACEOUS PLANT) FIBER - There are provided a method for manufacturing various products needed in an actual life which may be implemented in combination with a refiner for refining plants by a mechanical method, a method for refining plants, a molding mixture which is made by mixing refined fiber, clay and water and molds and dries as an interior decorative material for architecture, a heat keeping, adiabatic, sound proof, fireproof board, brick and block, a decorative design (cement mortar) mixture, a fiber having an enhanced tensional force, a cement board which has an architecture interior and exterior heat keeping, adiabatic, soundproof, fireproof functions manufactured by mixing cement and water, a cement material, a fiber board manufactured by mixing fiber and adhesive material, paper made of fiber, thread woven with fiber, and a fiber heat keeping material made of fiber. | 02-19-2009 |
20090123727 | Gypsum Wallboard and Method of Making Same - A coalescing additive is used in the manufacturing process for gypsum wallboard. Such an additive increases the surface area and density of the slurry at the paper to core interface by coalescing the foam cells away from the paper core interface. This permits a stronger paper to core bond to form and increases the compressive strength of the gypsum wallboard as compared to standard wallboards made from slurries with reduced water levels. | 05-14-2009 |
20090169856 | Polypropylene Fiber for Reinforcement of Matrix Materials - Disclosed are structural materials including polymeric reinforcement fibers that can provide added strength and fracture toughness to the matrix. The polymeric reinforcement fibers are polypropylene-based monofilament fibers or tape fibers exhibiting extremely favorable mechanical characteristics for structural reinforcement including modulus greater than 12 MPa and elongation less than about 10%. The disclosed reinforced composite materials can exhibit desired average residual strength values with less total fiber loading necessary to attain the ARS values as compared to previously known polymer reinforced materials. Very high strength and fracture toughness can be attained in the disclosed composite materials. | 07-02-2009 |
20100055439 | WUCS Fibers Having Improved Flowing And Dispersing Properties - A sizing composition including one or more primary lubricants, at least one secondary lubricant, and at least one coupling agent is provided. The primary lubricant is a fatty amide lubricant that is the condensation product of a saturated fatty acid having at least 16 carbon atoms and a polyamine. Additionally, the primary lubricant acts both as a lubricant and as a cationic surfactant in the size composition when it is neutralized with a weak acid to assist in dispersing the fibers in a gypsum slurry. The secondary lubricant is polyamide or a polyvinyl amine, and acts as a film forming agent in the fiberizing process to protect the glass fibers from interfilament abrasion. The sizing composition provides improved fiber feeding, fiber flow, and fiber dispersion in a gypsum matrix or slurry. The weight ratio by dry solids of primary to secondary lubricant in the size composition is at least 5:1. | 03-04-2010 |
20100310850 | REINFORCEMENT SHEET TO REINFORCE A CEMENTITIOUS BOARD - A cementitious board and a reinforcement sheet for the board includes, a water vapor porous layer of glass fibers bonded together by a cured binder, and a hydrophilic coating material being mobile in slurry water to wet the binder coated glass fibers and spread a slurry of a cementitious compound, and the hydrophilic coating material being volatile to dissipate by evaporation at an elevated temperature at which the cementitious compound dries to form a dried cementitious board having both the cementitious compound and the binder coated glass fibers essentially free of the hydrophilic coating material. | 12-09-2010 |
20110086214 | BUILDING PRODUCTS CONSTRUCTED FROM THERMOPLASTIC POLYMER MAT IMPREGNATED WTIH CEMENTITIOUS MATERIAL - A building product includes a thermoplastic polymer mat impregnated with a cementitious material. The thermoplastic polymer mat has a front face and a rear face. A stiffening layer is laminated to the rear face of the thermoplastic polymer mat. A finishing layer covers the front face of the thermoplastic polymer mat. A method of producing the building product is also provided. | 04-14-2011 |
20110262732 | Reinforcement Fibers and Methods of Making and Using Same - Modified fibers that are texturized fibers coated with resin(s) are disclosed. The invention also discloses structural materials reinforced with the modified fibers including concrete, grout and wallboard products. Concrete products and dry concrete mixes contain cement, resin coated (epoxy, acrylic and so on) coated carbon fibers, and any optional components such as silica fumes, slag, stone, sand, and/or other aggregates. The resin coated carbon fibers have a length of about 1 inch to about 6 inches. A method of reinforcing concrete comprises mixing the cement, the acrylic coated carbon fibers, any optional components (such as silica fumes, slag, stone, sand, and/or other aggregates), and water to form a cement slurry, and letting the slurry set to cure the cement and form bonds between the cement and the carbon fibers, thereby obtaining reinforced concrete are also disclosed. | 10-27-2011 |
20110262733 | Fibrous plasticized gypsum composition - A composition comprising purposely oriented lignocellulosic fiber bound to an inorganic hydrate such as gypsum in the absence of water using a polymer. In a preferred embodiment the polymer is polyurethane. A process for producing the composition and a wide variety of applications of the composition are also described. | 10-27-2011 |
20120208003 | Composite Materials Using Novel Reinforcements - The present invention relates to materials used for building products, construction projects, structural objects, mechanical devices and other materials applications. Specifically, the present invention concerns composite materials made with reinforcing elements in a binder matrix material. A method of strengthening materials is described that uses high volumes of reinforcing elements, which can be easily dispersed and uniformly distributed, consisting of large diameter fibers, miniature rods or other similar geometric shapes with a diameter or thickness between 0.05 mm and 20 mm where the reinforcements are incorporated either as short, randomly distributed elements or long, continuous aligned arrays. | 08-16-2012 |
20130065040 | PREPARATIONS FOR PRODUCING REINFORCING FIBERS FOR USE IN CONCRETE UTILIZING POLYCHLOROPRENE DISPERSIONS - The invention provides the use of mixtures based on aqueous dispersions of polychloroprene to produce fiber products finished therewith, a process for the production thereof and the use of these finished fiber products to produce textile-reinforced and fiber-reinforced concrete and other products based on cement. | 03-14-2013 |