GYPSUM COMPOSITIONS WITH NAPHTHALENE SULFONATE AND MODIFIERS

An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a naphthalene sulfonate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the naphthalene sulfonate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbo...

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Bibliographic Details
Main Authors BLACKBURN, DAVID, R, SHAKE, MICHAEL, P, LIU, QINGXIA
Format Patent
LanguageEnglish
French
Published 16.04.2009
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
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Summary:An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a naphthalene sulfonate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the naphthalene sulfonate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates. Suspension de gypse améliorée comprenant: eau, hémihydrate de sulfate de calcium, dispersant au sulfonate de naphtalène et modificateur, lequel a une configuration chimique améliorant l'efficacité du dispersant. Les modificateurs préférés sont les suivants: ciment, chaux, chaux éteinte, carbonate de soude, carbonates,silicates et phosphates.
Bibliography:Application Number: WO2007US25204