Patent · US Active

Sulfonated polyaryletherketone-polyethersulfone block copolymers

US7595373B2 · kind B2 · utility

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30Claims

0Family size

Assignee

General Electric Company · US

Inventors

Joyce Hung · Niskayuna, US
Hongyi Zhou · Niskayuna, US
Marianne Elisabeth Harmon · Niskayuna, US
Daniel J. Brunelle · Scotia, US
Hongwei Liu · Troy, US
David Roger Moore · Rexford, US
Daniel Steiger · San Francisco, US

Key dates

Filing date	Dec 20, 2005
Grant date	Sep 29, 2009
Priority date	—
Expiry date	Nov 28, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G75/23
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Sulfonated block copolymer suitable for use as proton exchange membranes for fuel cells comprise sulfonated polyaryletherketone blocks and polyethersulfone blocks. The sulfonated polyaryletherketone blocks comprise structural units of formulathe polyethersulfone blocks comprising structural units of formulawherein

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