Patent · US Active

Graphenic carbon particle dispersions and methods of making same

US9574094B2 · kind B2 · utility

5Cited by

20References

17Claims

0Family size

Assignee

PPG Industries Ohio, Inc. · US

Inventors

Eldon L. Decker · Gibsonia, US
Stephen Istivan · Pittsburgh, US
Xiangling Xu · Pittsburgh, US
Brian E. Woodworth · Pine Township, US
W. David Polk · Pittsburgh, US
Noel R. Vanier · Wexford, US
Cheng-Hung Hung · Wexford, US

Key dates

Filing date	Dec 9, 2013
Grant date	Feb 21, 2017
Priority date	—
Expiry date	Dec 9, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2201/011
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Dispersions of graphenic carbon particles are produced using a polymeric dispersant. The polymeric dispersant includes an anchor block comprising glycidyl (meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, 2-(3,4-epoxycyclohexyl)ethyl(meth)acrylate, allyl glycidyl ether and mixtures thereof, reacted with a carboxylic acid comprising 3-hydroxy-2-naphthoic acid, para-nitrobenzoic acid, hexanoic acid, 2-ethyl hexanoic acid, decanoic acid and/or undecanoic acid. The polymeric dispersant also includes at least one tail block comprising at least one (meth)acrylic acid alkyl ester.

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