Quick-drying levelling compound for decorative floor coverings
AssigneeSika Technology AG
InventorsMarkus KNOEBEL, Nick SCHNEIDER
Life of this patent
Estimating the term…
Abstract
A floor construction including a floor covering and a sealing layer applied to the floor covering, wherein one or more primers are arranged between the substrate and the floor covering and the floor covering is formed of a filling compound which includes an aluminate binder, a calcium sulfate binder, one or more fillers, ethyl hydroxyethyl cellulose as thickening agent, comb polymer having sidechains with an ionic group and sidechains with an ether group bonded to a polymer backbone, as plasticizer, and one or more color pigments as coloring agent.
Claims15
A floor construction on a substrate, comprising a floor covering and a sealing layer applied to the floor covering, wherein one or more primers are arranged between the substrate and the floor covering and the floor covering is formed of a filling compound mixed with water and cured, wherein the filling compound comprises
- i) an aluminate binder selected from calcium aluminate cement and/or calcium sulfoaluminate cement,
- ii) a calcium sulfate binder selected from calcium sulfate hemihydrate and/or calcium sulfate anhydrite,
- iii) one or more fillers,
- iv) ethyl hydroxyethyl cellulose as thickening agent,
- v) comb polymer, which is a copolymer comprising a polymer backbone and sidechains bonded thereto, and at least one ionizable monomer unit and at least one sidechain-bearing monomer unit are present, wherein the ionic group of the ionizable group is selected from carboxylate, sulfonate, phosphate or phosphonate and the sidechain-bearing monomer unit contains at least one ether group, as plasticizer, and
- vi) one or more color pigments as coloring agent,
- wherein the amount of filler is 15% to 70% by weight and the total amount of aluminate binder and calcium sulfate binder is 25% to 80% by weight, wherein the weight ratio of aluminate binder to calcium sulfate binder is in the range from 1:1 to 1:8, wherein the weight specifications refer to the dry weight of the filling compound.
(canceled)
(canceled)
(canceled)
(canceled)
A filling compound for the production of a floor covering on a primed substrate, wherein the filling compound comprises
- i) an aluminate binder selected from calcium aluminate cement and/or calcium sulfoaluminate cement,
- ii) a calcium sulfate binder selected from calcium sulfate hemihydrate and/or calcium sulfate anhydrite,
- iii) one or more fillers,
- iv) ethyl hydroxyethyl cellulose as thickening agent,
- v) comb polymer, which is a copolymer comprising a polymer backbone and sidechains bonded thereto, and at least one ionizable monomer unit and at least one sidechain-bearing monomer unit are present, wherein the ionic group of the ionizable group is selected from carboxylate, sulfonate, phosphate or phosphonate and the sidechain-bearing monomer unit contains at least one ether group, as plasticizer, and
- vi) one or more color pigments as coloring agent,
- wherein the amount of filler is 15% to 70% by weight and the total amount of aluminate binder and calcium sulfate binder is 25% to 80% by weight, wherein the weight ratio of aluminate binder to calcium sulfate binder is in the range from 1:1 to 1:8, wherein the weight specifications refer to the dry weight of the filling compound.
Dependencies are inferred from the claim text.