Pre-emulsion and use thereof for the preparation of a hair dyeing composition as well as process for the preparation of a hair dyeing emulsion
Abstract
Abstract The invention concerns a pre-emulsion for the simple preparation of a hair dyeing composition, comprising a combination ofa) 20% to 40% by weight of at least one C12-C14-fatty alcohol ethoxylate with 1 to 5 ethylene oxide groups;b) 15% to 40% by weight of oleic acid;c) 10% to 30% by weight of ethanediol and/or 1.2-propanediol distearate;d) 5% to 20% by weight of glyceryl stearate and/or at least one sugar fatty acid ester; and,e) 0% to 25% by weight of at least one C12-C18-fatty alcohol, each calculated to the total pre-emulsion composition; containing no further emulsifiers or fatty substances, having a maximum water content of 10% by weight, in particular 5% by weight, whereby the pH-value is preferably between 7.1 and 9.This pre-emulsion can be mixed at a low temperature with a customary aqueous composition, comprising at least one oxidation dyestuff precursor, to give a stable hair dyeing emulsion.
Inventors
- 👤 Heribert Lorenz
Bibliographic Details
Claims Analysis
Total Claims: 8References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 2004-08-20 | 2005-02-19 | 2005-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-08-20 | 2009-02-19 | 2009-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-08-20 | 2013-02-19 | 2013-08-21 | $7700.00 | Window Closed / Lapsed |