Welcome Guest to Happi

Subscribe Free: Magazine | eNewsletter

current issue May 2015
 •  Put Pacs in Perspective  •  Palmers Casts Hewitt for Fall Campaign  •  UPDATE: P&G Sells Frédéric Fekkai  •  Novex Expands With Curls Collection  •  Net-A-Porter Picks Up Goldfaden MD
Print

Wella Patents Dye Derivatives



Published December 5, 2006
Related Searches: patent color
Post a comment
Patent No. US 7,132,001 B2: Wella, AG, Darmstadt, Germany patented an agent for coloring keratin fibers based on a developer-coupler combination, with the coupler containing at least one 3-aminophenol derivative.


blog comments powered by Disqus