Patent · US Active

Water-soluble, hydrophobic associating copolymers

US9315717B2 · kind B2 · utility

3Cited by

4References

25Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Pfeuffer · Bad Waldsee, DE
Roland Reichenbach-Klinke · Traunstein, DE
Stefan Friedrich · San Gabriel, US
Marcus Guzmann · Bad Windsheim, DE

Key dates

Filing date	Jul 30, 2010
Grant date	Apr 19, 2016
Priority date	—
Expiry date	May 25, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F220/585
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Water-soluble, hydrophobically associating copolymer comprising a monoethylenically unsaturated, water-soluble, surface-active monomer (a), and a monoethylenically unsaturated, hydrophilic monomer (b) different from monomer (a). The copolymer is prepared in the presence of a nonpolymerizable surfactant and has marked thickening properties in aqueous systems.

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