Copolymers based on unsaturated dicarboxylic acid...

Details Copolymers based on unsaturated dicarboxylic acid... Copolymers based on unsaturated dicarboxylic acid...

C - Chemistry, Metallurgy

08

F

C08F 220/58 (2006.01) C04B 24/26 (2006.01) C08F 222/00 (2006.01) C08F 222/20 (2006.01)

Patent

CA 2244384

Copolymers based on unsaturated dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, unsaturated dicarboximides and/or -amides and vinyl monomers are described, as also their use as additives for hydraulic binders, especially cement. The copolymers also have an excellent plasticizing effect-even if they are added in large quantities - when used in concrete mixtures with an extremely low water content, and they do not retard the setting process.

d'oxyalkylèneglycol et d'alkényle, de dicarboximides insaturés et/ou de dicarboxamides insaturés, et de monomères vinyliques. On divulgue aussi leur utilisation comme additifs pour des liants hydrauliques, en particulier pour le ciment. Ces copolymères possèdent aussi un excellent effet plastifiant, même lorsqu'ils sont ajoutés en grande quantité, quand on les utilise dans des mélanges de béton à teneur en eau extrêmement faible. Ils ne retardent également pas le processus de durcissement

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