C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 9/04 (2006.01) C04B 16/04 (2006.01) C04B 24/42 (2006.01) C04B 28/34 (2006.01)
Patent
CA 2255581
The invention discloses a new phosphomagnesium cement that can be obtained by contacting at least one phosphorus compound and at least one magnesium compound based binder phase, with at least one polymer in water insoluble particle form, and water. The polymer can be selected among those derived from the polymerisation of at least one ethylenically unsaturated monomer and at least one monomer selected among monomers with carboxylic function and acrylamide or methacrylamide. The phosphomagnesium cement can also comprise an aminoalkylsilane, preferably an aminoalkyl(alkoxysilane).
L'invention concerne un nouveau ciment phosphomagnésien susceptible d'être obtenue par mise en contact d'une phase liante à base d'au moins un composé du phosphore et d'au moins un composé de magnésium, avec au moins un polymère sous forme de particules insoluble dans l'eau, et de l'eau. Le polymère peut notamment être choisi parmi ceux issus de la polymérisation d'au moins un monomère à insaturation éthylènique et au moins un monomère choisi parmi les monomères à fonction carboxylique et l'acrylamide ou le méthacrylamide. Le ciment phosphomagnésien peut également comprendre un aminoalkylsilane, de préférence un aminoalkyl(alkoxysilane).
Colombet Jean-Francois
Lemos Dominique
Orange Gilles
Rhodia Chimie
Robic
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