The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Aug. 04, 2016
Toho Chemical Industry Co., Ltd., Tokyo, JP;
Akira Suga, Sodegaura, JP;
Katsutoshi Sato, Sodegaura, JP;
Tomohisa Okada, Sodegaura, JP;
Taro Tsushima, Sodegaura, JP;
TOHO CHEMICAL INDUSTRY CO., LTD., Tokyo, JP;
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.