SURFACTANTS

The invention provides a particulate material for the production of a cement foam which material comprises particles comprising, attached to the particle surface, a surfactant which renders the particles hydrophilic, the surfactant comprising a moiety which is hydrolysable under alkaline conditions,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HOANG, LEIEN, GARTNER, ELLIS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES REFRACTORIES SLAG THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	The invention provides a particulate material for the production of a cement foam which material comprises particles comprising, attached to the particle surface, a surfactant which renders the particles hydrophilic, the surfactant comprising a moiety which is hydrolysable under alkaline conditions, which surfactant, after loss of the moiety by alkaline hydrolysis, renders the particles partially hydrophobic. L'invention concerne un matériau particulaire pour la production d'une mousse de ciment, ledit matériau comprenant des particules qui comprennent, attaché à la surface des particules, un tensioactif qui rend les particules hydrophiles, le tensioactif comprenant une fraction qui est hydrolysable en conditions alcalines, ledit surfactant rendant les particules partiellement hydrophobes après la perte de la fraction par hydrolyse alcaline.