| abstract |
Copolymers based on unsaturated dicarboxylic acid derivatives,nOxyalkylene glycol alkenyl ethers, unsaturated dicarboximidesnand / or amides and vinylic monomersnand their use as additives for hydraulic binders,nespecially cement. The copolymers also show up in concrete mixesnextremely low water content an excellent liquefying effectnand do not delay the hardening process even at high doses. |