CO-POLYMERS BASED ON OXYALKYLENEGLYCOL ALKENYL ETHERS AND UNSATURATED DICARBOXYLIC ACID DERIVATIVES

摘要

The present invention provides co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives, as well as vinylic polyalkyleneglycol, polysiloxane or ester compounds. These co-polymers can be used as additives for hydraulic binding agents, especially cement. These co-polymers have an excellent and long-lasting liquefying action without introducing large amounts of air pores into the binding agent mixtures, thereby preventing losses of strength and stability of the hardened building materials.