Patent · US Active

Colorant compatible hydrophobically modified polyurethane thickener for paint

US8748542B2 · kind B2 · utility

2Cited by

16References

24Claims

0Family size

Assignee

HERCULES LLC · US

Inventors

Kirill N. Bakeev · Newark, US
De-Kai Loo · Hockessin, US
Angie H. Ma · Newark, US
Tuyen T. Nguyen · Newark, US
Jeffrey K. Politis · Kerken, DE

Key dates

Filing date	Jun 18, 2009
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Jun 18, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D7/43
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A synthetic polymer has a water-soluble or water-swellable polyurethane backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.

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