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:
Oct. 15, 2024
Filed:
Feb. 24, 2022
Société Bic, Clichy, FR;
Université DE Haute-alsace, Mulhouse, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Karine Mougin, Valdicu-Lutran, FR;
Guillaume Caffier, Montevrain, FR;
Feriel Ghellal, Belfort, FR;
Arnaud Spangenberg, Flaxlanden, FR;
Quentin Bauerlin, Mulhouse, FR;
SOCIÉTÉ BIC, Clichy, FR;
UNIVERSITÉ DE HAUTE-ALSACE, Mulhouse, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
A kit comprising a) an aqueous writing ink composition, containing—metal nanoparticles as coloring agent wherein the metal nanoparticles essentially consists of metal and the metal is chosen from silver, gold, aluminum and/or copper and—a dispersing agent, and b) an eradicator fluid containing at least one oxidizing agent. An aqueous eradicator fluid for erasing an aqueous writing ink composition containing metal nanoparticles as the coloring agent, in which the fluid contains an oxidizing agent and—a volatile solvent. A writing instrument containing the eradicator fluid, the use of the eradicator fluid and/or of the kit containing it and a method of correcting errors of a written mark made on a porous substrate.