Patent · US Expired

Flow improving agents for binder suspensions containing cement

US6150437A · kind A · utility

16Cited by

4References

27Claims

0Family size

Assignee

SKW Trostberg Aktiengesellschaft · DE

Inventors

Konrad Wutz · Trostberg, DE
Alfred Kern · Schneeberg, DE
Josef Weichmann · Pleiskirchen, DE

Key dates

Filing date	Jun 7, 1995
Grant date	Nov 21, 2000
Priority date	—
Expiry date	Jun 7, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/62
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Flow improving agents for binder suspensions containing cement are described, which consist of: PA1 a) Graft polymers which have been prepared by radical grafting of a polyalkylene oxide of the general formula (I) with an ethylenically unsaturated mono- or dicarboxylic acid or the anhydride thereof, and then by derivatizing with a primary or secondary amine and/or alcohol, and also of PA1 b) Casein. These flow improving agents have the advantage that the ability to flow is considerably improved in comparison, for example, with casein alone, and the improved ability to flow is preserved over a longer period of time.

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