C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 40/00 (2006.01) C08K 13/02 (2006.01) C04B 28/00 (2006.01)
Patent
CA 2700066
The present invention pertains to the use of quaternary organic ammonium compounds for the reduction of efflorescence in building materials. In addition, a mixture containing at least one quaternary organic ammonium compound and at least one water-soluble organic polymer and, optionally, further additives is described. The mixture according to the invention can be prepared by a) at least one quaternary organic ammonium compound and at least one water-soluble organic polymer being mixed with one another in water and the obtained aqueous mixture optionally being subsequently dried, or b) at least one powdery quaternary organic ammonium compound and at least one powdery water-soluble organic polymer being mixed with one another, or c) at least one liquid and/or dissolved quaternary organic ammonium compound being applied on at least one powdery water-soluble organic polymer, in particular by means of spraying on, adsorption, mixing, fluidised bed drying and/or granulation.
La présente invention concerne l'utilisation de composés organiques d'ammonium quaternaire pour réduire des efflorescences sur des masses de matériau de construction. L'invention concerne également un mélange contenant au moins un composé organique d'ammonium quaternaire, au moins un polymère organique hydrosoluble et éventuellement d'autres additifs. Le mélange selon l'invention peut être obtenu a) par mélangeage d'au moins un composé organique d'ammonium quaternaire et d'au moins un polymère organique hydrosoluble dans de l'eau puis par séchage éventuel du mélange aqueux obtenu ou b) par mélangeage d'au moins un composé organique d'ammonium quaternaire pulvérulent et d'au moins un polymère organique hydrosoluble pulvérulent ou c) par application d'au moins un composé organique d'ammonium quaternaire liquide et/ou dissous sur au moins un polymère organique hydrosoluble pulvérulent, notamment par pulvérisation, adsorption, mélangeage, séchage en lit fluidisé et/ou granulation.
Akzo Nobel N.v.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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