Patent · US Active

Polyurethane based pigment dispersants which contain reactive double bonds

US8487051B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

Lubrizol Advanced Materials, Inc. · US

Inventors

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

Key dates

Filing date	Dec 15, 2009
Grant date	Jul 16, 2013
Priority date	—
Expiry date	May 10, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/326
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.