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:
Jul. 18, 2006
Filed:
Aug. 20, 2002
Thomas Kripp, Fraenkisch-Crumback, DE;
Beate Grasser, Hattersheim, DE;
Achim Koschik, Darmstadt, DE;
Thomas Kripp, Fraenkisch-Crumback, DE;
Beate Grasser, Hattersheim, DE;
Achim Koschik, Darmstadt, DE;
Wella AG, Damstadt, DE;
Abstract
The two-component hair treatment product consists of one component (A) and another component (B). Component (A) contains an acid and component (B) contains a base. Less than 3 g of the base and/or acid are soluble in 100 ml of water at 20° C. The acid is preferably a dicarboxylic acid, such as sebacic, dodecanoic dicarboxylic acid or tetradecanoic dicarboxylic acid. The base is preferably ammonia, an alkyl amine or an alkylol amine. Prior to use in a method of permanent hair shaping or hair care, the components are mixed with each other to form a ready-to-apply mixture having an automatically continuously or gradually changing pH that changes within from one to 60 minutes so that damage to the hair due to high pH is avoided. For permanent shaping of hair the initial pH of 8 to 13 falls from about 1 to 4 pH units within from 10 to 30 minutes after mixing the components.