CLAY BLOCKING ADDITIVES FOR GYPSUM COMPOSITIONS

• Main Authors: HAMPEL, Christina, FRUNZ, Lukas, VELTEN, Ulf, WEINKAUF, Annette, WEIDMANN, Jürg, JUILLAND, Patrick
• Format: Patent
• Language: English; French; German
• Published: 24.05.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

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...