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:
Mar. 06, 2012
Filed:
Nov. 01, 2007
John R. Klaehn, Idaho Falls, ID (US);
Eric S. Peterson, Idaho Falls, ID (US);
Christopher J. Orme, Shelley, ID (US);
Michael G. Jones, Chubbuck, ID (US);
Alan K. Wertsching, Idaho Falls, ID (US);
Thomas A. Luther, Idaho Falls, ID (US);
Tammy L. Trowbridge, Idaho Falls, ID (US);
John R. Klaehn, Idaho Falls, ID (US);
Eric S. Peterson, Idaho Falls, ID (US);
Christopher J. Orme, Shelley, ID (US);
Michael G. Jones, Chubbuck, ID (US);
Alan K. Wertsching, Idaho Falls, ID (US);
Thomas A. Luther, Idaho Falls, ID (US);
Tammy L. Trowbridge, Idaho Falls, ID (US);
Battelle Energy Alliance, LLC, Idaho Falls, ID (US);
Abstract
A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO—, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.