Process of preparation of an aqueous gel ink with fixed color comprising gold nanoparticles

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United States of America Patent

PATENT NO 11820905
APP PUB NO 20220275227A1
SERIAL NO

17631099

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Abstract

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A process for preparing in situ an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink comprising ester(s) of retinol represented by formula (I), and (ii) adding a solution of gold salts (Au3+) to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with fixed color with gold nanoparticles dispersed therein. An aqueous gel ink with fixed color obtained according to the process of the invention, comprising the ester of retinol represented by formula (I) and gold nanoparticles. A writing instrument comprising an aqueous gel ink with fixed color.

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Patent Owner(s)

Patent OwnerAddress
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE75016 PARIS
SOCIETE BIC92110 CLICHY
UNIVERSITE DE HAUTE ALSACE68200 MULHOUSE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albenge, Olivier Clichy, FR 18 7
Ghellal, Feriel Clichy, FR 10 2
Metillon, Romain Clichy, FR 9 2
Mougin, Karine Paris, FR 10 2
Spangenberg, Arnaud Mulhouse, FR 11 5

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