Patent · US Active

Mixed-sulfonation block copolymers

US7598337B2 · kind B2 · utility

14Cited by

0References

35Claims

0Family size

Assignee

General Electric Company · US

Inventors

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

Key dates

Filing date	Dec 20, 2005
Grant date	Oct 6, 2009
Priority date	—
Expiry date	Oct 17, 2027

Classification

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

Abstract

Sulfonated block copolymers that may be used as membranes for fuel cells include sulfonated polyaryletherketone blocks and lightly sulfonated polyethersulfone blocks.The sulfonated polyaryletherketone blocks include structural units of formulaand the lightly sulfonated polyethersulfone blocks include structural units of formulawherein

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