发明名称 |
VERFAHREN ZUR ENTFERNUNG VON FARBE AUS POLYMERMATERIAL |
摘要 |
<p>Color is removed from polymeric material by a method which comprises contacting a dyed or pigmented polymer composition with a non-aqueous extraction solvent comprising a nitrogen containing organic base, an ammonium salt and an alkanol. The present method is readily applied to a process for recycling colored polyamide substrates such as dyed nylon fiber.</p> |
申请公布号 |
AT556110(T) |
申请公布日期 |
2012.05.15 |
申请号 |
AT20080718340T |
申请日期 |
2008.03.31 |
申请人 |
BASF SE |
发明人 |
OZER, RONNIE;GERZEVSKE, KEVIN RODNEY |
分类号 |
C08J11/08;D06P5/13 |
主分类号 |
C08J11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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