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. 22, 2022
Filed:
Feb. 22, 2017
Sobute New Materials Co., Ltd., Jiangsu, CN;
Bote New Materials Taizhou Co., Ltd., Jiangsu, CN;
Qianping Ran, Jiangsu, CN;
Tao Wang, Jiangsu, CN;
Jiaping Liu, Jiangsu, CN;
Shuai Qi, Jiangsu, CN;
Jianfeng Ma, Jiangsu, CN;
Shimin Fan, Jiangsu, CN;
Bing Wang, Jiangsu, CN;
Zheng Han, Jiangsu, CN;
SOBUTE NEW MATERIALS CO., LTD., Jiangsu, CN;
BOTE NEW MATERIALS TAIZHOU CO., LTD., Jiangsu, CN;
Abstract
Embodiments of the invention relate to concrete admixtures, provide a phosphonato block polymer, a preparation method and an application. The method includes: the phosphonato block polymer prepared by copolycondensating an ether-type segment A, a phosphonato segment B, and a third part of aldehyde C. The ether-type segment A is obtained by polycondensating a polyether monomer and a first part of aldehyde C. The phosphonato segment B is obtained by polycondensating a monomer b containing phosphonato, a monomer c, and a second part of aldehyde C in an aprotic weak polar solvent E. By preparing a block polymer using arylalkane as a main chain and using a phosphonic acid or phosphinic acid functional group as an adsorption group, the invention improves the resistance of the block polymer to sulfate and clay interference, and can achieve initial high dispersion of concrete with a low water-cement ratio and decreasing of the system viscosity.