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AssigneeSika Technology AG
InventorsUlf Velten, Annette Süssenberger, Jürg Weidmann, Lukas Frunz, Patrick Juilland
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Use of a comb polymer as an inerting agent for non-swelling layer-silicates, the comb polymer including: a) at least one poly(alkylene oxide) side chain-bearing monomer unit M1 without ionic groups, b) optionally at least one cationic monomer unit MC, wherein the molar ratio of the cationic monomer units MC to the side chain-bearing monomer units M1 is equal to or less than 0.1, preferably less than 0.05, c) optionally at least one anionic monomer unit MA, wherein the molar ratio of the anionic monomer units MA to the side chain-bearing monomer units M1 is less than 1, preferably equal to or less than 0.5, and c) optionally at least one non-ionic monomer unit M3, wherein the molar ratio of the non-ionic monomer units M3 to the side chain-bearing monomer units M1 is less than 7, preferably equal to or less than 3.
A method comprising adding a comb polymer to a mineral binder composition containing non-swelling layer-silicates and a dispersant, the comb polymer being added in an amount effective such that the comb polymer acts as an inerting agent for the non-swelling layer-silicates and improves the effect of the dispersant in the mineral binder composition,
A method comprising adding (i) a comb polymer, and (ii) a dispersant to a mineral binder composition comprising non-swelling layer-silicates, the comb polymer being added in amount effective for plasticizing the mineral binder composition;
Dependencies are inferred from the claim text.