The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2008
Filed:
Jul. 29, 2005
David Roger Moore, Albany, NY (US);
Hongyi Zhou, Niskayuna, NY (US);
Daniel Steiger, Clifton Park, NY (US);
Joyce Hung, Niskayuna, NY (US);
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Hongwei Liu, Troy, NY (US);
Marianne Elisabeth Harmon, Niskayuna, NY (US);
David Roger Moore, Albany, NY (US);
Hongyi Zhou, Niskayuna, NY (US);
Daniel Steiger, Clifton Park, NY (US);
Joyce Hung, Niskayuna, NY (US);
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Hongwei Liu, Troy, NY (US);
Marianne Elisabeth Harmon, Niskayuna, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
Novel polyethersulfone compositions have been discovered which incorporate structural subunits derived from sulfonated bis(halophenyl)sulfones, dihydroxy terphenyls, and/or bis(hydroxyphenyl)pyridines. The sulfonated polyethersulfones show promise as materials for use in polymer electrolyte membranes (PEMs) in fuel cells owing to their high proton conductivities (0.02-0.07 S/cm at 20° C. and 100 percent humidity). In addition, a novel unsulfonated thermoplastic polyethersulfone comprising structural subunits derived from a non-sulfonated bis(halophenyl)sulfone bis4-fluorophenyl)sulfone and 4,4'-dihydroxyphenyl-2,6-pyridine (CAS No. 171820-16-9) is disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile