C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/58 (2006.01) C04B 24/16 (2006.01) C08F 212/14 (2006.01) C08F 222/02 (2006.01) C08F 226/02 (2006.01) C08F 228/02 (2006.01)
Patent
CA 2481835
Water-soluble copolymers based on olefinic sulfonic acids, olefinic dicarboxylic acids, vinyl amides and vinyl ethers and/or allyl ethers and/or bisacryl derivatives are described as well as processes for their production and the use of these copolymers as water retention agents, thickeners or anti-segregation agents for aqueous building material systems that contain hydraulic binding agents such as cement, lime, gypsum, anhydrite etc. or for clay suspensions preferably based on bentonite.
L'invention concerne des copolymères hydrosolubles à base d'acides sulfoniques oléfiniques, d'acides dicarboxyliques oléfiniques, d'amides vinyliques et d'éthers vinyliques et/ou allyliques et/ou de dérivés bisacryliques, ainsi que des procédés de production desdits copolymères et l'utilisation de ces derniers comme agent de rétention d'eau, épaississant ou agent anti-ségrégation pour des systèmes de matériaux de construction qui contiennent des liants hydrauliques tels que le ciment, la chaux, le plâtre, l'anhydrite etc., ou pour des suspension d'argile de préférence à base de bentonite.
Fenchl Andrea
Huber Uwe
Plank Johann
Spindler Christian
Basf Construction Polymers Gmbh
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Skw Polymers Gmbh
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