公开(公告)号：EP2132259A1

公开(公告)日：2009-12-16

申请号：EP08718340.6

申请日：2008-03-31

申请人： BASF SE

发明人： Ozer, Ronnie ,  Gerzevske, Kevin Rodney

IPC分类号： C08J11/08 ,  D06P5/13

CPC分类号： C08J11/04 ,  C08J2377/04 ,  D06P1/642 ,  D06P1/6426 ,  D06P1/6495 ,  D06P1/65118 ,  D06P1/66 ,  D06P5/13 ,  D06P5/131 ,  D06P5/137 ,  Y02P20/143 ,  Y02P20/582 ,  Y02W30/70

摘要： Color is removed frompolymeric materialby a method which comprises contactinga dyed or pigmented polymercomposition 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.

公开(公告)号：EP2132259B1

公开(公告)日：2012-05-02

申请号：EP08718340.6

申请日：2008-03-31

申请人： BASF SE

发明人： Ozer, Ronnie ,  Gerzevske, Kevin Rodney

IPC分类号： C08J11/08 ,  D06P5/13

CPC分类号： C08J11/04 ,  C08J2377/04 ,  D06P1/642 ,  D06P1/6426 ,  D06P1/6495 ,  D06P1/65118 ,  D06P1/66 ,  D06P5/13 ,  D06P5/131 ,  D06P5/137 ,  Y02P20/143 ,  Y02P20/582 ,  Y02W30/70

摘要： Color is removed frompolymeric materialby a method which comprises contactinga dyed or pigmented polymercomposition 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.