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:
Jan. 14, 2014
Filed:
Dec. 07, 2011
Caroline Goget, Paris, FR;
Katia Dutheil-gouret, Les Metairies, FR;
Ludivine Masselin, Paris, FR;
Marika Fila, Courbevoie, FR;
Caroline Goget, Paris, FR;
Katia Dutheil-Gouret, Les Metairies, FR;
Ludivine Masselin, Paris, FR;
Marika Fila, Courbevoie, FR;
L'Oreal, Paris, FR;
Abstract
The present invention relates to a dye composition comprising at least one oxidation dye precursor, at least one poly-condensate of ethylene oxide and propylene oxide having the following structure: H—(O—CH—CH)—(O—CH(CH)—CH)—(O—CH—CH)—OH, in which a and a' range from 2 to 150 and b ranges from 1 to 100; and at least one cationic polymer with a charge density of greater than or equal to 4 meq./g. The invention also relates to a dyeing process using this composition after mixing with a composition comprising an oxidizing agent. Another subject of the invention is devices comprising at least two compartments, the first compartment comprising the above composition and the second compartment comprising a composition comprising at least one oxidizing agent.