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Article: Publication No. WO/2009/130167 Published on Oct. 29, Assigned to Kemira Oyj for Lignin-Containing Material Light-Induced Yellowing Reduction Pretreatment Method (Finnish, German Inventors)
- Article from:
- US Fed News Service, Including US State News
- Article date:
- October 30, 2009
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GENEVA, Oct. 30 -- Veli-Matti Vuorenpalo, Jarkko Pere and Reijo Aksela, all from Finland, and Andrei Tauber, Germany, have developed a pretreatment method for reduction of light-induced yellowing of lignin-containing material.
The patent has been assigned to Kemira Oyj, Helsinki, Germany.
According to an abstract posted by the World Intellectual Property Organization: "The present invention provides a method for treating lignin-containing fibrous material to reduce its susceptibility to yellowing, comprising pretreating the material with a reducing agent and stabilizing the lignin of the material with an oxidizing agent ...