Copolymer for use as cement additive and method
of preparation thereof
(57) This application relates to a polymer that is useful as a cement additive, wherein the polymer is produced by copolymerisation of an olefinic mono-carboxylic acid or salt thereof, an acrylamide sulfonic acid or salt thereof, and an allylic sulfonic acid or salt thereof. The application also relates to a method of making such a polymer, a composition comprising such a polymer and cement or a cementitious slurry, use of such a polymer as an additive to a cementitious material, and a cementitious material comprising such a polymer.
(71) Devine Chemicals Limited, Leadgate, Consett (GB)
(73) Devine Chemicals Limited, Leadgate, Consett (GB)