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:
Apr. 02, 2024
Filed:
Oct. 27, 2020
Applicant:
L'oreal, Paris, FR;
Inventor:
Frédéric Guerin, Saint Ouen, FR;
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); A61K 8/02 (2006.01); A61K 8/41 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01);
U.S. Cl.
CPC ...
A61K 8/0245 (2013.01); A61K 8/415 (2013.01); A61K 8/44 (2013.01); A61K 8/463 (2013.01); A61K 8/731 (2013.01); A61K 8/8152 (2013.01); A61K 8/8176 (2013.01); A61Q 5/10 (2013.01); A61K 2800/432 (2013.01);
Abstract
The present application relates to a colouring solid particle for dyeing keratin fibres, in particular human keratin fibres such as the hair, comprising a core containing one or more direct dyes and/or one or more oxidation dye precursors and an upper coating layer covering said core and containing one or more cellulose ethers. The present application also relates to a process for preparing a dye composition comprising one or more colouring solid particles, to a process for the oxidation dyeing of keratin fibres, comprising the application of the composition obtained to said fibres, and to the use of this composition for dyeing keratin fibres.