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:
Aug. 03, 2021
Filed:
Sep. 20, 2018
Kao Corporation, Tokyo, JP;
Fumina Abo, Sumida-ku, JP;
Shunsuke Watanabe, Arakawa-ku, JP;
Keiji Monda, Katsusika-ku, JP;
Takeshi Iizaki, Saitama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
A liquid hair dye composition, comprising components (A) and (B), wherein the content (X) of component (A) in the composition is 1.5 mass % or more and 9.3 mass % or less, the content (Y) of component (B) in the composition is 9 mass % or more and 98.5 mass % or less, and the liquid hair dye composition satisfies the following formula (1) (with the proviso that a liquid hair dye composition which has the content of diol of 50 mass % or more and the content of water of 2 mass % or less is excluded), Y≥10.875X−10.875 (1), (A) an azo dye of the formula (A-1), and (B) a monoalcohol and/or a diol other than alkanolamines.