Patent · US Active

Low molecular weight phosphorus-containing polyacrylic acids and use thereof as scale inhibitors in water-carrying systems

US8889033B2 · kind B2 · utility

0Cited by

7References

9Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Detering · Schifferstadt, DE
Bolette Urtel · Frankenthal (Pfalz), DE
Stephan Nied · Hamburg, DE
Ewald Heintz · Schweigen-Rechtenbach, DE

Key dates

Filing date	Feb 1, 2012
Grant date	Nov 18, 2014
Priority date	—
Expiry date	Feb 1, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2303/22
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein

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