Use of salts of water-soluble
AssigneeChemie Linz Aktiengesellschaft
InventorsStefan Pieh, Christian Werenka
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Abstract
Use of salts of water-soluble naphthalenesulfonic acid formaldehyde condensates having a molar formaldehyde/naphthalenesulfonic acid ratio of 1.2:1 to 3:1 and an intrinsic viscosity of 0.01 to 0.15 dl/g, as an additive to inorganic binders for improving the flowability, and a structural material prepared using binders modified in this manner.
Claims8
A process for increasing the flowability of inorganic binders which consists essentially of adding to said binders a salt of a water-soluble naphthalenesulfonic acid/formaldehyde condensate, which has a molar ratio of formaldehyde to naphthalenesulfonic acid of 1.2:1 to 3:1 and which has been condensed to a degree of condensation which corresponds to an intrinsic viscosity of 0.01 to 0.15 dl/g.
A structural material based on an inorganic binder possessing increased flowability, which contains, as a plasticizer, a water-soluble salt of a naphthalenesulfonic acid/formaldehyde resin having a molar ratio of formaldehyde to naphthalenesulfonic acid of 1.2:1 to 3:1 and a degree of condensation corresponding to an intrinsic viscosity of 0.01 to 0.15 dl/g.
Dependencies are inferred from the claim text.