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:
May. 05, 2026
Filed:
Oct. 04, 2021
Applicant:
Société Bic, Clichy Cedex, FR;
Inventor:
Carine Bethouart, Clichy Cedex, FR;
Assignee:
SOCIÉTÉ BIC, Clichy Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/17 (2014.01);
U.S. Cl.
CPC ...
C09D 11/17 (2013.01);
Abstract
The present invention concerns a washable aqueous ink composition comprising: a) at least one salt of monocarboxylic or polycarboxylic acid with from 3 to 8 carbon atoms, 5b) at least one salt of polyacrylic acid, c) at least one dye. It also concerns a writing instrument comprising it and the use of the association of a) at least one salt of monocarboxylic or polycarboxylic acid with from 3 to 8 carbon and b) at least one salt of polyacrylic acid, to improve the washability 10 and/or vividness of the shades of a washable aqueous ink composition.