Patent · US Active

Additive for hydraulically setting compositions

US9315419B2 · kind B2 · utility

3Cited by

2References

17Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

Torben Gädt · Traunstein, DE
Harald Grassl · Feichten, DE
Alexander Kraus · Evenhausen, DE

Key dates

Filing date	Jul 19, 2013
Grant date	Apr 19, 2016
Priority date	—
Expiry date	Jul 19, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2103/308
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to an additive for hydraulically setting compositions, comprising an aqueous, colloidally disperse preparation of at least one salt of a polyvalent metal cation and of at least one polymeric dispersant which comprises anionic and/or anionogenic groups and polyether side chains. The additive is suitable particularly as a slump retainer.

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