PRODUCTION OF DISPERSANTS BY NITROXIDE-MEDIATED SOLUTION POLYMERIZATION

The present invention relates to methods for producing a copolymer, in particular a dispersant for solid particles, especially a dispersant for mineral binder compositions, wherein ionizable monomersm1 and sidechain-carrying monomers m2 are polymerized by nitroxide-mediated solution polymerization t...

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Bibliographische Detailangaben
Hauptverfasser:	WEIDMANN JURG, ULBER FABIA, ZIMMERMANN JORG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	The present invention relates to methods for producing a copolymer, in particular a dispersant for solid particles, especially a dispersant for mineral binder compositions, wherein ionizable monomersm1 and sidechain-carrying monomers m2 are polymerized by nitroxide-mediated solution polymerization to a copolymer, the polymerization being carried out in the presence of an agent comprising a carboxy group-carrying and phosphorized alkoxyamine. 本发明涉及制备共聚物，特别是用于固体颗粒的分散剂，尤其是用于矿物粘结剂组合物的分散剂的方法，其中将可电离单体m1和带有侧链的单体m2通过硝基氧调介的溶液聚合来聚合得到共聚物，其中该聚合是在包含带有羧基的磷酸盐化的烷氧基胺的试剂存在下进行的。