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:
Oct. 12, 1999
Filed:
Nov. 07, 1997
Applicant:
Inventors:
Hans-Jurgen Braun, Ueberstorf, CH;
Pascal Andre Semadeni, Cordast, CH;
Assignee:
Wella AG, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424 701 ; 8423 ; 514 27 ;
Abstract
The dye-containing mass contains or consists of a compound of formula I: ##STR1## wherein R represents a DL-, D- or L-aldopyranose or a DL-, D- or L-ketopyranose, and X and Y, independently of each other, each represent a hydrogen atom, a halogen atom, a hydroxy group or an alkoxy group with from 1 to 4 carbon atoms; and, if needed, a direct-dyeing dye compound. The ready-to-use hair dye composition according to the invention is obtained by mixing this dye-containing mass with a hydrolase enzyme, e.g. a .beta.-galactosidase. The method for dyeing hair includes applying this ready-to-use hair dye composition to the hair.