Patent · US Active

Polyelectrolytic flow agent

US9233875B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

BASF Construction Solutions GmbH · DE

Inventors

Frank Dierschke · Oppenheim, DE
Michael Schinabeck · Garching bei München, DE

Key dates

Filing date	Mar 27, 2012
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Sep 29, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2103/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention provides compositions containing a salt formed from an acid and from a base, wherein the acid is defined as a polycondensation product containing (I) at least one structural unit including an aromatic or heteroaromatic and a polyether side chain, and (II) at least one phosphated structural unit including an aromatic or heteroaromatic, and polyethyleneimine as base, wherein the molar mass of the polyethyleneimine is greater than 500 daltons. Likewise provided is a process for producing these compositions and building product mixtures comprising the invention compositions. The invention also provides for the use of the compositions as admixture agents, preferably as flow agents, for aqueous suspensions of binders based on calcium sulphate or for aqueous suspensions of (latently) hydraulic binders.

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