Patent · US Active

Polyurethane based pigment dispersants which contain reactive double bonds

US8338558B2 · kind B2 · utility

4Cited by

5References

18Claims

0Family size

Assignee

Lubrizol Advanced Materials, Inc. · US

Inventors

Stuart N. Richards · Manchester, GB
Andrew J. Shooter · Altrincham, GB

Key dates

Filing date	Jun 1, 2006
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Jun 6, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/16
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polymeric urethane dispersants with solubilizing polymer chains and with reactive carbon to carbon double bonds are described. The reactive double bonds facilitate molecular weight build-up of the dispersant on dispersed particles (enhancing colloidal stability) or enhance the ability of the dispersants to be crosslinked into a matrix material.

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