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. 11, 2006
Filed:
May. 13, 2004
Frederick F. Stewart, Idaho Falls, ID (US);
Mason K. Harrup, Idaho Falls, ID (US);
Christopher J. Orme, Shelley, ID (US);
Thomas A. Luther, Idaho Falls, ID (US);
Frederick F. Stewart, Idaho Falls, ID (US);
Mason K. Harrup, Idaho Falls, ID (US);
Christopher J. Orme, Shelley, ID (US);
Thomas A. Luther, Idaho Falls, ID (US);
Battelle Energy Alliance, LLC, Idaho Falls, ID (US);
Abstract
A polyphosphazene having a glass transition temperature ('T') of approximately −20° C. or less. The polyphosphazene has at least one pendant group attached to a backbone of the polyphosphazene, wherein the pendant group has no halogen atoms. In addition, no aromatic groups are attached to an oxygen atom that is bound to a phosphorus atom of the backbone. The polyphosphazene may have a Tranging from approximately −100° C. to approximately −20° C. The polyphosphazene may be selected from the group consisting of poly[bis-3-phenyl-1-propoxy)phosphazene], poly[bis-(2-phenyl-1-ethoxy)phosphazene], poly[bis-(dodecanoxypolyethoxy)-phosphazene], and poly[bis-(2-(2-(2-ω-undecylenyloxyethoxy)ethoxy)ethoxy)phosphazene]. The polyphosphazene may be used in a separation membrane to selectively separate individual gases from a gas mixture, such as to separate polar gases from nonpolar gases in the gas mixture.