C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 17/42 (2006.01) C09K 17/40 (2006.01)
Patent
CA 2403450
The invention relates to a clay-containing mixture or blend capable of forming a moisture resistant gel, which com- prises a powdered or ground smectite and/or a smectite-containing natural rock and at least 0.8 - 10 % by weight, calculated for the smectite content, of an at least partially water-soluble and/or water swellable polymer and optionally at least 0.5 % by weight of a solid activating agent. Such a mixture may also additionally comprise as a diluting agent more than 0.5 % by weight of one or more solid inert filler(s); this diluted version is termed in the specification as a blend.
L'invention concerne un mélange contenant de l'argile ou un mélange permettant de former un gel résistant à l'humidité. Ce mélange comprend une smectite en poudre ou broyée et/ou une roche naturelle à base de smectite et au moins 0,8 - 10 % en poids, calculé par rapport à la quantité de smectite, d'un polymère au moins partiellement hydrosoluble et/ou pouvant gonfler dans l'eau et éventuellement 0,5 % en poids d'agent activant solide. Un tel mélange peut, en outre, comprendre comme agent de dilution plus de 0,5 % en poids d'une ou plusieurs charges inertes solides. Dans le descriptif, cette version diluée est appelée mélange.
Libor Oszkar
Wammes Jacobus Cornelis
Sim & Mcburney
Trisoplast International B.v.
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