Mixture comprising glyoxylic acid or condensation or addition products thereof
AssigneeBASF SE
InventorsHarald Grassl, Joachim Dengler, Julien Bizzozero, Alexander Schöbel
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Abstract
The present application relates to a mixture comprising at least one compound A selected from glyoxylic acid, salts thereof, and condensation or addition products of glyoxylic acid or salts thereof; and at least one polyhydroxy compound B. Furthermore, the present application relates to a construction material composition comprising said mixture, and to the use of said mixture for modifying the hardening of inorganic binder containing building material formulations, and/or for producing building products.
Claims18
A construction material composition comprising at least one inorganic binder and a mixture comprising;
- a) at least one compound A selected from the group consisting of glyoxylic acid, salts thereof, condensation or addition products of glyoxylic acid or salts thereof, and mixtures thereof;
- b) at least one polyhydroxy compound B and/or salts or saturated or unsaturated C1-C20-carboxylic acid esters thereof, wherein the polyhydroxy compound B is selected from the group consisting of polyalcohols with a carbon to oxygen ratio of from C/O≥1 to C/O≤1.5 and mixtures thereof;
- and
- c) at least one compound C selected from:
- i) a borate source,
- ii) a carbonate source, wherein the carbonate source is selected from inorganic carbonates and organic carbonates,
- and mixtures thereof.
A mixture comprising
- a) at least one compound A selected from an amine-glyoxylic acid condensate selected from the group consisting of a melamine-glyoxylic acid condensate, an urea-glyoxylic acid condensate, a melamine-urea-glyoxylic acid condensate, a polyacrylamide-glyoxylic acid condensate, and mixtures thereof;
- and
- b) at least one polyhydroxy compound B and/or salts or saturated or unsaturated C1-C20-carboxylic acid esters thereof, wherein the polyhydroxy compound B is selected from polyalcohols with a carbon to oxygen ratio of from C/O≥1 to C/O≤1.5 and mixtures thereof;
- and
- c) at least one compound C selected from:
- i) a borate source,
- ii) a carbonate source, wherein the carbonate source is selected from inorganic carbonates and organic carbonates,
- and mixtures thereof.
Dependencies are inferred from the claim text.