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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 8709599 B1

PDFFull Text
Date of Patent:
Apr. 29, 2014

Filed:

Jun. 11, 2008

Spin transition material

Applicants:

Jean-françois Letard, Canejan, FR;

Nathalie Daro, Pessac, FR;

Sandie Auffret, Bures-sur-Yvette, FR;

Inventors:

Jean-François Letard, Canejan, FR;

Nathalie Daro, Pessac, FR;

Sandie Auffret, Bures-sur-Yvette, FR;

Assignee:

Centre National de la Recherche Scientifique, Paris, FR;

Attorney:

Sofer & Haroun, LLP

Primary Examiner:

Alicia Chevalier

Assistant Examiner:

Thomas Mangohig

Int. Cl.
CPC ...
C07F 15/00 (2006.01); C07F 15/02 (2006.01); C07F 15/04 (2006.01); C07F 15/06 (2006.01); C09C 1/22 (2006.01); G11B 7/249 (2013.01); C09B 45/00 (2006.01); G11B 7/246 (2013.01);
U.S. Cl.
CPC ...
Abstract

A material is composed of at least one spin transition compound that corresponds to the formula FeM(R-Trz)XY(I) in which M is a metal having a 3d, 3d, 3dor 3dconfiguration, other than Fe; 0≦m≦1; R-Trz represents a 1,2,4-triazole ligand carrying an R substituent on the nitrogen in the 4 position; R is an alkyl group or an RRN— group in which Rand Rrepresent, each independently of the other, H or an alkyl radical; X represents at least one noncoloring monovalent or divalent anion; Y represents at least one anion which has a coloring group; and b and c are chosen so that the electrical neutrality of the compound (I) is adhered to. A process for the preparation of this material and to its use as thermochromic pigment, as support for data storage or as optical limiter.

Find Patent Forward Citations

Letard, Jean-François. (2014). Spin transition material (U.S. Patent No. 8709599). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8709599

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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