Patent · US Active

Rheology modifying admixture

US7909927B2 · kind B2 · utility

5Cited by

8References

20Claims

0Family size

Assignee

LAMBERTI SPA · IT

Inventors

Giampietro Margheritis · Verbania, IT
Eva Baldaro · Milano, IT
Luca Perrone · Milano, IT
Giuseppe Li Bassi · Varese, IT

Key dates

Filing date	Jan 15, 2009
Grant date	Mar 22, 2011
Priority date	—
Expiry date	Jan 15, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2103/0079
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Rheology modifying admixture comprising a) from 80 to 99% w/w of hydroxyalkyl guar, cellulose ether, or mixture thereof; b) from 1 to 20% w/w of biopolymer selected from diutan gum and welan gum, and hydraulic compositions containing the rheology modifier admixture together with a superplasticizer.

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