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.

Date of Patent:
Jul. 29, 2014

Filed:

May. 15, 2012
Applicants:

Kenneth Warren Hang, Cary, NC (US);

Hena Pyada, Cary, NC (US);

Howard T Sawhill, Chapel Hill, NC (US);

Michael A. Skurski, Cary, NC (US);

Robert Paul Waldrop, Chapel Hill, NC (US);

Inventors:

Kenneth Warren Hang, Cary, NC (US);

Hena Pyada, Cary, NC (US);

Howard T Sawhill, Chapel Hill, NC (US);

Michael A. Skurski, Cary, NC (US);

Robert Paul Waldrop, Chapel Hill, NC (US);

Assignee:

E I du Pont de Nemours and Company, Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/16 (2006.01); H01B 1/22 (2006.01); C03C 8/04 (2006.01); C03C 8/18 (2006.01);
U.S. Cl.
CPC ...
H01B 1/16 (2013.01); C03C 8/04 (2013.01); C03C 8/18 (2013.01); H01B 1/22 (2013.01);
Abstract

The present invention is directed to an electroconductive thick film paste composition comprising Ag and a Pb-free bismuth-tellurium oxide both dispersed in an organic medium, wherein the paste is fireable at temperatures below 420° C. The paste is especially useful for forming electrodes on substrates such as glass or films, particularly electrochromic glass or films, that would be damaged by higher firing temperatures. The present invention is further directed to a device comprising an electrode formed from the paste composition and, in particular, to an electrochromic device comprising such an electrode.


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