DISPERSANT AGENT CONTAINING COPOLYMER MIXTURE

摘要

The invention relates to a polymer composition containing 3 to 90 percent by weight of a copolymer H and 3 to 90 percent by weight of a copolymer K. Copolymers H and K each include polyether macromonomer structural units and acid monomer structural units at a respective molar ratio ranging from 1:20 to 1:1 in copolymers H and K, and at least 20 mole percent of all structural units in copolymer H and at least 25 mole percent of all structural units in copolymer K are provided in the form of acid monomer structural units. At least 60 mole percent of the polyether macromonomer structural units in copolymer H are represented by isoprenol polyether derivative structural units, and at least 60 mole percent of the polyether macromonomer structural units in copolymer K are represented by vinyloxy polyether derivative structural units.