CLAY BLOCKING ADDITIVES FOR GYPSUM COMPOSITIONS
A comb polymer is used as an inerting agent for swelling clays and/or non-swelling clays in gypsum compositions, said comb polymer comprises: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 m...
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Main Authors | , , , , , |
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Format | Patent |
Language | English French German |
Published |
24.05.2023
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Abstract | A comb polymer is used as an inerting agent for swelling clays and/or non-swelling clays in gypsum compositions, said comb polymer comprises: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 10,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,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 5. |
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AbstractList | A comb polymer is used as an inerting agent for swelling clays and/or non-swelling clays in gypsum compositions, said comb polymer comprises: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 10,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,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 5. |
Author | WEINKAUF, Annette HAMPEL, Christina WEIDMANN, Jürg FRUNZ, Lukas JUILLAND, Patrick VELTEN, Ulf |
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DocumentTitleAlternate | TONBLOCKIERUNGSADDITIVE FÜR GIPSZUSAMMENSETZUNGEN ADDITIFS DE BLOCAGE D'ARGILE POUR COMPOSITIONS DE GYPSE |
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Snippet | A comb polymer is used as an inerting agent for swelling clays and/or non-swelling clays in gypsum compositions, said comb polymer comprises:a) at least one... |
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SubjectTerms | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
Title | CLAY BLOCKING ADDITIVES FOR GYPSUM COMPOSITIONS |
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