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. 02, 1994
Filed:
Jul. 13, 1993
Applicant:
Inventors:
Masahiko Ogawa, Tokyo, JP;
Hidetoshi Tagami, Tokyo, JP;
Toru Yoshihara, Tokyo, JP;
Jiro Kawase, Tokyo, JP;
Akira Kiyomine, Tochigi, JP;
Tadashi Tamura, Tochigi, JP;
Yoshinori Nishizawa, Tochigi, JP;
Ken-ichi Matsunaga, Saitama, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ;
U.S. Cl.
CPC ...
8408 ; 8405 ; 8406 ; 8407 ; 8410 ; 8412 ; 8421 ; 564218 ; 564 52 ; 560250 ; 560 29 ;
Abstract
A keratinous fiber dye composition comprising a developer and a coupler, wherein the coupler is a 2-substituted amino-5-alkylphenol derivative represented by the following formula (1): ##STR1## wherein the all symbols are defined in the disclosure, is disclosed. The keratinous fiber dye composition imparts a color tone of a high chroma and is excellent in coloring power and fastness.