Composite gypsum board

A composite gypsum board comprising a gypsum material and a filler, characterized in that the filler contains paper chips and/or a paper chip assembly as the essential component, the paper chips and/or the chip assembly being arranged substantially parallel to the plane perpendicular to the thicknes...

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Bibliographische Detailangaben
Hauptverfasser:	UCHIYAMA, KENICHI, TANABE, SHINKICHI, MASUDA, KENTA, NAGATA, NORIFUMI, NAKAKUKI, YOSHIKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BUILDING BUILDING MATERIALS CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG STRUCTURAL ELEMENTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	A composite gypsum board comprising a gypsum material and a filler, characterized in that the filler contains paper chips and/or a paper chip assembly as the essential component, the paper chips and/or the chip assembly being arranged substantially parallel to the plane perpendicular to the thicknesswise direction of the board. A process for preparing the board is also provided. The board has markedly improved bending strength and resistance to pulling out of screws and nails. Further, it is valuable also from the viewpoint of effective utilization of wastes, a problem awaiting solution in recent years.