Method for manufacturing protein filling agent for leather utilizing animal hairs
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United States of America Patent
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Aug 23, 2011
Grant Date -
Oct 29, 2009
app pub date -
Apr 29, 2009
filing date -
Apr 29, 2008
priority date (Note) -
Expired
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Abstract
Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.
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