Patent · US Active

Fluidising composition

US8177905B2 · kind B2 · utility

0Cited by

9References

14Claims

0Family size

Assignee

CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

Gerhard Albrecht · Prien am Chiemsee, DE
Max Oppliger · Allschwil, CH
Qiwei Yang · Küsnacht (ZH), CH
Hubertus Matthias Zink · Trostberg, DE

Key dates

Filing date	Jan 27, 2010
Grant date	May 15, 2012
Priority date	—
Expiry date	Jul 15, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00172
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A fluidizing admixture for use with sprayable cementitious compostions, the admixture consists of 2-phosphonobutane-1,2,4-tricarboxylic acid and at least one selected polymer derived from ethylenically-unsaturated mono- or dicarboxylic acids. Citric acid may optionally be present. The admixture has good fluidizing properties and outstanding shelf-life.

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