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:
Aug. 25, 2009
Filed:
Mar. 23, 2005
Jeffrey Bruce Ratner, Pinellas Park, FL (US);
David Matthew Green, Palm Harbor, FL (US);
Darrell Wayne Crick, Athens, WV (US);
Marc Edward Halpern, Cherry Hill, NJ (US);
Jeffrey Bruce Ratner, Pinellas Park, FL (US);
David Matthew Green, Palm Harbor, FL (US);
Darrell Wayne Crick, Athens, WV (US);
Marc Edward Halpern, Cherry Hill, NJ (US);
Mercury Enterprises, Inc., Clearwater, FL (US);
Abstract
Compositions for COdetector solutions and rapid-response reversible dry surface COdetectors made from them are disclosed. The COdetector solutions generally comprise a poly(oxyethylene) based compound, a pH sensitive indicator dye, an organic solvent, a cationic phase transfer agent and an anionic base. However, minimally these detector solutions comprise a poly(oxyethylene) based compound, a pH sensitive indicating dye, an organic solvent and a base. The solutions were embedded onto a solid support made of polyethersulfone filter material in order to form rapid-response reversible dry surface COdetectors. Rapid-response reversible dry surface COdetectors are produced which function at rates in excess of 180 one-way color changes/minute when exposed to alternating 0% and 5% COconcentrations. A preferred embodiment using cationic methyltricaprylylammonium in conjunction with the phenoxide anion is substantially humidity resistant.