Patent · US Active

Polymer mixtures as deposit inhibitors in water-bearing systems

US9382377B2 · kind B2 · utility

0Cited by

9References

20Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Detering · Schifferstadt, DE
Torben Gädt · Traunstein, DE
Stephan Nied · Hamburg, DE
Andreas Kempter · Neustadt, DE
Bolette Urtel · Frankenthal (Pfalz), DE
Jessica Neumann · Ludwigshafen, DE

Key dates

Filing date	Aug 8, 2012
Grant date	Jul 5, 2016
Priority date	—
Expiry date	Apr 15, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F16/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polymer mixture in solid or aqueous form includes a content of from 5 to 95% by weight of a first polymer and a content of from 5 to 95% by weight of a second polymer. The first polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol. The second polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol. The polymer mixture can inhibit precipitation and sedimentation of calcium salts and magnesium salts in water-bearing systems.

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