REMOVAL OF COLOR FROM THERMOPLASTICS
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United States of America Patent
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Issued Date -
Mar 27, 2014
app pub date -
Sep 24, 2013
filing date -
Sep 24, 2012
priority date (Note) -
Abandoned
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Abstract
A process of decolorizing dyed thermoplastics are provided that includes intermixing a dyed thermoplastic with a decolorization agent solution at a temperature that maintains the crystalline structure of the thermoplastic. The processes for the first time are capable of removing substantial portions of dye from the thermoplastic providing a material that is suitable for recycling processes and use in subsequent recycled articles.
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