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.:

US 8394917 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 12, 2013

Filed:

Jul. 02, 2010
Applicants:

Chad Martin Amb, Gainesville, FL (US);

Pierre Marc Beaujuge, Berkeley, CA (US);

John R. Reynolds, Gainesville, FL (US);

Inventors:

Chad Martin Amb, Gainesville, FL (US);

Pierre Marc Beaujuge, Berkeley, CA (US);

John R. Reynolds, Gainesville, FL (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Embodiments of the invention are directed to alternating donor-acceptor (DA) polymers that are soluble and display a blue or green neutral state that oxidizes to a transmissive state for use as an electrochromic polymer. The D units have 3,4-dioxythiophene, 3,6-dialkoxythieno[3,2-b]thiophene or 3,5-dialkoxy-dithieno[3,2-b:2',3′-d]thiophene groups. Embodiments of the invention are directed to a method for preparation of the alternating DA polymeric sequences of the DA polymers by a cross-condensation of a nucleophilic acceptor monomer and an electrophilic donor monomer.


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Amb, Chad. (2013). Soluble alternating donor-acceptor conjugated polymer electrochromes (U.S. Patent No. 8394917). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8394917

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