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:
Jan. 21, 2025
Filed:
Apr. 24, 2018
Applicant:
Societe Bic, Clichy, FR;
Inventors:
Christelle Debrauwer, Saint Germain sur Morin, FR;
Anne-Lise Damiano, Lagny sur Marne, FR;
Alexander Bourque, Montevrain, FR;
Francois Foulonneau, Bordeaux, FR;
Guillaume Chollet, Leognan, FR;
Assignee:
SOCIETE BIC, Clichy, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/50 (2014.01); B41M 5/337 (2006.01); C07C 69/612 (2006.01); C07C 69/616 (2006.01); C09D 11/17 (2014.01); B41M 5/30 (2006.01); B41M 5/327 (2006.01); B41M 5/333 (2006.01);
U.S. Cl.
CPC ...
C09D 11/50 (2013.01); B41M 5/3375 (2013.01); C07C 69/612 (2013.01); C07C 69/616 (2013.01); C09D 11/17 (2013.01); B41M 5/305 (2013.01); B41M 5/3275 (2013.01); B41M 5/3335 (2013.01);
Abstract
A thermochromic pigment composition including: (A) at least one electron-donor organic dye compound, (B) at least one electron-acceptor compound, and (C) at least one compound responding to the following formula (I), in which: Ris H or a phenyl group, —Ris H or a phenyl group, and -n=1-8. The thermochromic pigment composition includes thermochromic pigment microcapsules ink compositions including such thermochromic pigment microcapsules, and writing instruments including such ink compositions.