Dispersant for fine particles and slurry composition capable of maintaining excellent powder dispersion stability even if a binder is added

• Main Authors: YOSHIKAWA, FUMITAKA, KOMURO, HARUKA, MATSUZAKI, KENTA
• Format: Patent
• Language: Chinese; English
• Published: 01.05.2022
• Subjects: ADHESIVES; ARTIFICIAL STONE; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CEMENTS; CERAMICS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CORRECTING FLUIDS; DYES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; INKS; LIME, MAGNESIA; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PRINTED CIRCUITS; REFRACTORIES; SLAG; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF NATURAL STONE; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

The technical problem of the present invention is to provide a slurry composition that can maintain excellent powder dispersion stability even if a binder is added. The solution to the technical problem is a dispersant for fine particles, which is formed from a polyether ester compound or a neutralized salt thereof, the polyether ester compound is an ester reactant of a component (a1) and a component (a2) and its acid value is 85-220 mg KOH/g, the component (a1): polyether compound of formula (1), HO-(AO)m-H... (1); AO is an oxyalkylene group having 2 to 4 carbon atoms, the oxyethylene group accounts for 20 mass% or more of AO, m is 2-30, and the component (a2): a polybasic acid or its acid anhydride having 2-9 carbon atoms and 2 or 3 carboxyl groups.