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:
Mar. 04, 2025
Filed:
Aug. 28, 2020
Societe Bic, Clichy, FR;
Universite DE Haute Alsace, Mulhouse, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Olivier Albenge, Clichy, FR;
Romain Metillon, Clichy, FR;
Karine Mougin, Paris, FR;
Feriel Ghellal, Clichy, FR;
Arnaud Spangenberg, Mulhouse, FR;
SOCIETE BIC, Clichy, FR;
UNIVERSITÉ DE HAUTE-ALSACE, Mulhouse, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
The invention relates a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of gold or silver nanoparticles with a fixed color; (iii) adding the aqueous suspension of gold or silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i).