Patent ID: 10487170

Abstract:
A polycondensation product containing a phenolic copolymer useful for a hydraulic-composition dispersant that has stable dispersability and can obtain a prescribed fluidity, including a copolymer obtained by polycondensing a monomeric mixture including compounds A-D of formulas (A)-(D). A hydraulic-composition dispersant containing the product or copolymer. In the formulas, A1O, A2O, A3O, and A4O represent a C2-4 alkylene oxide group; m, n represent a number from 0 to 300 and m+n≥1; p, q represent a number from 1 to 300; X represents a hydrogen atom, alkyl group, or C1-24 acyl group; R0, R1 represent a hydrogen atom, alkyl group or alkenyl group; Y1, Y2 represent a hydrogen atom, phosphoester group, or sulfate ester group; Y3 represents a phosphoester or a sulfate ester group; R2 represents a hydrogen atom, carboxyl group, C1-10 alkyl group, C2-10 alkenyl group, phenyl group, napthyl group, or heterocyclic group; r represents a number from 1-100.