Carboxylate quadripolymer dispersant and preparation technology thereof

• Main Authors: ZHANG LEI, DU LIANGLIANG, REN TIANRUI
• Format: Patent
• Language: English
• Published: 24.06.2015
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PREPARATION OF CARBON BLACK; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES

The invention relates to a copolymer dispersant, specifically a carboxylate quadripolymer dispersant and its preparation technology. The dispersant provided by the invention is obtained by copolymerization of the following substances: 10-50 parts of a vinyl aromatic compound, 10-50 parts of unsaturated acid, 10-50 parts of a unsaturated carboxylic acid derivative and 10-50 parts of mono polyethylene glycol maleate. The invention has the following advantages: the carboxylate quadripolymer dispersant containing a polyethylene glycol branched chain has good water solubility, has good adaptation to a broad pH value disperse system and has high resistance to hard water; the dispersant has an ideal molecular structure, can stably disperse dispersed substances through steric-hinerance effect and electrostatic repulsion effect, and has low system viscosity; and the preparation technology is simple, is easy to operate, has short production cycle, is low-cost, causes no environmental pollution and is suitable for large-scale industrial production.