Patent · US Expired

Polymer for water treatment

US7405263B2 · kind B2 · utility

2Cited by

6References

4Claims

0Family size

Assignee

BASF SE

Inventors

Pia Baum · Weinheim, DE
Erich Lutz · Altrip, DE
Marcus Guzmann · Bad Windsheim, DE
Karl-Heinz Buechner · Ottersheim, DE
Gregor Brodt · Heppenheim, DE

Key dates

Filing date	May 6, 2004
Grant date	Jul 29, 2008
Priority date	—
Expiry date	Oct 16, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2303/08
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.

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