Patent · US Active

Additive for rheology improvement of inorganic binders

US9803053B2 · kind B2 · utility

0Cited by

37References

19Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

Alexander Kraus · Evenhausen, DE
Joachim DENGLER · Trostberg, DE
Torben Gädt · Traunstein, DE
Sandro Moro · Treviso, IT
Juergen Bokern · Löhne, DE
Anil Bendale · Thane, IN
Nicolas Moins · Évry, FR
Nicoletta Zeminian · Treviso, IT

Key dates

Filing date	Dec 16, 2014
Grant date	Oct 31, 2017
Priority date	—
Expiry date	Dec 16, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/91
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention concerns a polycondensate containing (I) at least a structural unit, which is an aromatic moiety bearing a polyether side chain comprising 9 to 41 alkylene glycol units, (II) at least a structural unit, which is an aromatic moiety bearing at least one phosphoric acid ester group and (III) at least a methylene unit (—CH2—), the polycondensate having a polycondensation degree of 10 to 75. Also concerned are building material mixtures containing said polycondensates and the use as dispersant for inorganic binders.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.