METHOD OF PREPARING A GYPSUM-BASED PRODUCT

METHOD OF PREPARING A GYPSUM-BASED PRODUCT

A method of preparing a gypsum-based product comprises the steps of mixing calcined gypsum with polymer particles and water to provide a slurry.The polymer particles comprise principally polyvinyl acetate, and have a particle size distribution, measured using laser diffractometry, such that particle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WALTON KIRSTY, BROOKS LAURA, JONES NICHOLAS, CUTLER DAVID, JUPP NICOLA
Format: Patent
Sprache:chi ; eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:A method of preparing a gypsum-based product comprises the steps of mixing calcined gypsum with polymer particles and water to provide a slurry.The polymer particles comprise principally polyvinyl acetate, and have a particle size distribution, measured using laser diffractometry, such that particles having a diameter of 4.5 [mu]m or less provide at least 90% of the total particle volume. 一种制备石膏基产品的方法，包括将煅烧石膏与聚合物颗粒和水混合以提供浆料的步骤。聚合物颗粒主要包括聚乙酸乙烯酯，并且具有使用激光衍射法测量的粒径分布，使得直径为4.5μm或更小的颗粒提供至少90％的总颗粒体积。