| abstract |
Copolymers with gem-bisphosphonate groups The present invention relates to copolymers comprising side chains comprising predominant hydrocarbon chains and carboxylic groups and polyoxyalkylating groups, characterized by further comprising gem-bisphosphonate groups, copolymers comprising mineral particles comprising said copolymer Mixtures for suspensions, and methods of making the copolymers. Finally, it relates to fluidization, the maintenance of fluids, the suspension of mineral particles, and the use of such copolymers to reduce the sensitivity of hydraulic compositions to clays and alkaline sulphates. Finally it is for the composition of the mineral particles comprising this copolymer. |