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7617606 |
Composite door, door core and method of manufacture
A method for making the core of a door of autoclaved aerated concrete (AAC). A billet of AAC is provided from which slabs are cut to the approximate dimensions of the door core. A reinforcing band...
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7445738 |
Multi-layer process and apparatus for producing high strength fiber-reinforced structural cementitious panels
A multi-layer process for producing structural cementitious panels, includes, a. providing a moving web; b. one of depositing a first layer of loose fibers upon the web and c. depositing a layer of...
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7244328 |
Composite door, door core and method of manufacture
A method for making the core of a door of autoclaved aerated concrete (AAC). A billet of AAC is provided from which slabs are cut to the approximate dimensions of the door core. A reinforcing band...
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6998359 |
Article and process for maintaining orientation of a fiber reinforced matt layer in a sandwiched urethane construction
A multiple layer fiber reinforced material and method of constructing the same including the provision of a first layer of a roll lofted glass material. Optional variants include the...
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6632550 |
Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it
The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material,...
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6547901 |
Reinforced plasterboard
A reinforced plasterboard has a first layer of paper, a core of a cementitious material, a mesh reinforcement and adjacent to that mesh reinforcement a further layer of paper. The mesh may be in...
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6508895 |
Method of producing gypsum/fiber board
A gypsum/fiber board having improved impact resistance is produced by mixing predetermined amounts of fibers, calcined gypsum and water to form a mixture of wetted, loose fibers; laying out a...
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6488792 |
Method and apparatus for manufacturing cementitious panel with reinforced longitudinal edge
A cementitious panel comprising a cementitious core which is fabric-reinforced at the surface thereof and whose longitudinal edges are reinforced by a network of fibers. A panel may be obtained...
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6475313 |
Process for making gypsum board having improved through-penetration strength
This invention relates to a process for making gypsum board comprising feeding a paper backing sheet and a fiberglass or plastic woven or non-woven scrim material in alignment to a board forming...
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6106607 |
Composition for hydrophobing gypsum and methods for the preparation and use thereof
A water repellent composition for gypsum containing masonry materials is disclosed. The composition contains as organohydrogensiloxane and polyvinyl alcohol, the combination of which provides...
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6063472 |
Architectural material and a process of production thereof
The present invention provides an architectural material obtained by forming a decorative layer containing calcium carbonate as a binder component on the surface of a base material, and laminating...
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6054205 |
Glass fiber facing sheet and method of making same
The invention provides a glass fiber facing sheet for engineered surfaces such as cement boards which reduces the pitting associated with open mesh glass scrims. The glass fiber facing sheet...
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5985061 |
Inorganic board and a method of manufacturing said inorganic board
An inorganic board consisting of an inorganic base layer formed by a paper making method and an inorganic surface layer formed by the dry method on said inorganic base layer is provided in the...
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5922447 |
Lightweight gypsum board
A lightweight gypsum board is provided, including, by dry weight, gypsum as the largest single ingredient, perlite as the second largest single ingredient, and starch as a minor ingredient, in the...
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5804003 |
Method of manufacturing an inorganic board
The object of the present invention is to prevent delamination of an inorganic board. To attain this object, a method of manufacturing an inorganic board comprising forming a single mat by the...
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5637362 |
Thin, sealant-coated, fiber-reinforced gypsum panel
A process for making a thin, sealant-coated, fire and indentation resistant gypsum panel. A layer of a mixture of cellulosic fibers moistened with water and an additive to restrict the adhesion of...
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5520779 |
Process and apparatus for producing fiber-reinforced plaster plates
Process and apparatus for the continuous production of gypsum fiber plates in which the fiber component is dewatered and rediluted with water recovered from the gypsum-fiber suspension after it has...
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5510198 |
Re-usable cement forms
This invention relates to a panel of material comprising a film comprising a layer of a solid polyolefin and a layer of copolyester wherein said copolyester comprises: (1) a dicarboxylic acid...
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5391245 |
Fire-resistant building component
A method of, and compositions for, the making of a fire-resistant door core assembly. Doors produced from the door core assemblies. In the making of a door core assembly, an aqueous slurry...
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5350554 |
Method for production of reinforced cementitious panels
A method and apparatus for producing light-weight construction panels having a cementitious core layer surfaced with a layer of reinforcing fabric bonded to the two faces of the core includes the...
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5342566 |
Method of manufacturing fiber gypsum board
A method and apparatus for producing gypsum board. The method includes the steps of mixing a predetermined amount of fibers, absorbent, and water to form a mixture of wetted, loose fibers, mixing...
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5320677 |
Composite material and method of producing
An improved composite material is produced by mixing gypsum and host particles of a stronger substance, such as wood fibers, in a dilute slurry; heating the slurry, under pressure, to convert the...
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5264057 |
Process for the production of a flame resistant to nonflammable composite panel and apparatus for carrying out the process
A flame resistant to nonflammable composite panel is produced from a nonextrudable core mixture with a pourable, nonflammable filling material and a binder, and on both sides cover strips flexibly...
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5151130 |
Amine-based consistency reducers for gypsum stucco slurries
A method for reducing the consistency of a water and gypsum stucco slurry comprising admixing water, stucco, and an additive, the additive in an amount effective to reduce the consistency of the...
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5100474 |
Glass fibre reinforced plaster composition
A glass fibre reinforced composition of a settable mix of plaster, a water-based phenol formaldehyde resin, an acid hardener and a reinforcement of glass fibres. A product of this composition can...
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5076978 |
Method of producing gypsum decorative molding
Decorative interior molding is molded from a slurry of gypsum, water, perlite, and a foaming agent. The slurry is surrounded by paper, cured, and dried.
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4948647 |
Gypsum backer board
A backer board for use as a base to which ceramic tile is bonded for a bathtub or shower area, in which the board is made by forming a gypsum core board with fiber glass laminated composite...
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4902348 |
Reinforced plasterboard and method of forming
The present invention is directed to a process for the manufacture of plasterboard optionally strengthened with reinforcing materials by mixing gypsum capable of rehydration with water and...
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4816091 |
Method and apparatus for producing reinforced cementious panel webs
A method is described for the continuous production of glass fiber mesh reinforced concrete panels consisting of a layer of light weight concrete core mix bonded to a web of glass fiber mesh on...
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4793892 |
Apparatus for producing reinforced cementitious panel webs
An apparatus is described for the continuous production of glass fiber mesh reinforced concrete panels consisting of a layer of light weight concrete core mix bonded to a web of glass fiber mesh on...
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4767491 |
Device for the continuous production of manufactured articles reinforced with mixtures of hydraulic binders
Device for the continuous manufacture of manufactured articles reinforced with mixtures of hydraulic binders and consisting of: a conveyor belt; a plurality `A` of process stations for the...
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4693924 |
Decorative tile
A decorative tile having a front face with a design thereon varies in density so that the front face of the tile presents a solid appearance, but the overall weight of the tile is less than for a...
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4572861 |
Prefabricated element for use in particular in the building industry and a method of manufacture of said prefabricated element
The prefabricated element comprises a plurality of parallel layers which adhere to each other. A first layer (2) of low-density mortar contains a sheet (5) of woven mineral fibers extending...
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4557973 |
Fire resistant gypsum board containing mineral wool fibers and method
Blown mineral wool fibers are introduced into slurries (such as gypsum board core formulations and steel column fireproofing plaster formulations) by first blending and coating the blown mineral...
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4544424 |
Gypsum board manufacturing method
Described is a novel gypsum board and a manufacturing method therefor by first forming a particulate layer securely adhered to the base paper for the gypsum board and by utilizing an adhesion layer...
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4528238 |
Production of fibre-reinforced cementitious composition
A process for the production of a moldable fibre-containing cementitious composition in which at least one mat of a water-insoluble fibrous material is contacted with at least one surface of a...
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4504335 |
Method for making reinforced cement board
A cement board of homogeneous composition from face to face and having a substantially uniform thickness is made continuously by distributing a sole cementitious composition on a moving carrier...
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4450022 |
Method and apparatus for making reinforced cement board
A network of reinforcing fibers is pressed against the surface of an underlying carrier sheet by the weight of a concrete mix. A vertical gap between the sheet and the network is created so that...
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4436564 |
Reinforcement product for use in cement boards and a method of manufacturing said product and boards
The present invention discloses a reinforcement product for use in cement boards and a method of manufacturing said product and of manufacturing cement boards using this product. The reinforcement...
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4394201 |
Concrete slab assembly, especially for building facades
A concrete plate assembly, e.g. as load carrying members or for building facades, comprises an inner concrete slab, an outer concrete slab spaced from the inner slab, and at least one main or...
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4378405 |
Production of building board
A building board comprises a core 31 of set cementitious material, such as gypsum, faced on at least one side by a fabric or web 33 of mineral fibres embedded in the face of the core and a...
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4344910 |
Process for the manufacture of water-hardening material
An improved process for the manufacture of reinforced shaped articles from water-hardening materials. A plurality of continuous networks of synthetic organic polymer material having at least two...
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4344804 |
Process and apparatus for the manufacture of fiber-reinforced hydraulically bound articles such as cementitious articles
The present invention relates to a continuous process for manufacturing articles comprised of fiber-reinforced hydraulically bound material. A layer of the fiber-reinforcing and hydraulically...
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4298413 |
Method and apparatus for producing concrete panels
The invention provides a process and apparatus for producing fabric-reinforced, thin concrete panels suitable as a backer board for construction materials such as ceramic tile, slate and thin...
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4296169 |
Wallboard having improved drying rate due to plural contacting fiber networks
A board comprising: two sheets of paper spaced apart and bonded to a core of inorganic cementitious material, said core having a network of glass monofilaments jack-strawed into a three-dimensional...
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4288263 |
Process for making plaster board
The present invention is concerned with manufacturing board from a fluid evolutive product, such as a plaster and water mixture. The process comprises pouring upon a conveyor a fluid evolutive...
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4265979 |
Method for the production of glass fiber-reinforced gypsum sheets and gypsum board formed therefrom
A fiber-reinforced cementitious sheet is formed by first co-mixing in an air current reinforcing fibers such as glass fibers, and cementitious mineral materials in finely particulate form such as...
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4242407 |
Process for the manufacture of articles of water-hardening material
An improved process for the manufacture of shaped articles from water-hardening materials reinforced with multiple layers of a fibrillated organic film. A plurality of networks are formed from...
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4242406 |
Fiber reinforced composite structural laminate composed of two layers tied to one another by embedded fibers bridging both layers
This invention relates to a structural laminate having a plastic surface finish coat laminated to a structural base which has exceptional bond strength between the structural base and the plastic...
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4214027 |
Process for the production of fiber-containing plaster boards
Fiber containing plaster boards are prepared by superimposing a plurality of board blanks one on top of the other such that the direction of the fiber orientation in the superimposed blanks...
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