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21. 发明专利

JPS5059382A 失效
公开(公告)号：JPS5059382A
公开(公告)日：1975-05-22
申请号：JP11074373
申请日：1973-10-01
IPC分类号： C07D201/12 , C07D223/10

22. 发明专利

JPS5010919B1 失效
公开(公告)号：JPS5010919B1
公开(公告)日：1975-04-25
申请号：JP2731268
申请日：1968-04-23
IPC分类号： C08G69/00 , C07D201/12 , C07D223/10 , C08G69/04 , C08G69/16

23. 发明专利

JPS4810477B1 失效
公开(公告)号：JPS4810477B1
公开(公告)日：1973-04-03
申请号：JP951469
申请日：1969-02-07
IPC分类号： B01D3/38 , B01J23/00 , C07B61/00 , C07D201/12

24. 发明专利

JP2009242446A Method for recycling nylon 6 product 审中-公开
标题翻译：回收尼龙6产品的方法
公开(公告)号：JP2009242446A
公开(公告)日：2009-10-22
申请号：JP2008087266
申请日：2008-03-28
申请人： Toray Ind Inc , 東レ株式会社
发明人： KATSURAGI HIDEFUSA , ITO TSUKASA
IPC分类号： C08J11/10 , C07D201/12 , C07D223/10 , C08J11/02
CPC分类号： Y02W30/702
摘要： PROBLEM TO BE SOLVED: To provide a method for recycling a nylon 6 product from a nylon 6 product containing one or more flameproofing agents as impurities by a simple operation and by an industrially advantageous process, and to provide a method for recycling a nylon 6 product in which a recovered nylon 6 product is depolymerized to recover high-grade caprolactam. SOLUTION: A nylon 6 product containing one or more flameproofing agents as impurities is heat-treated in a cleaning liquid to thereby recover a nylon 6 product freed of components originating in the flameproofing agents. The recovered nylon 6 product is depolymerized to recover caprolactam. Even if the nylon 6 product as raw material is dyed, it can be decolored during the heat treatment. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过简单的操作和通过工业上有利的方法从含有一种或多种防火剂的尼龙6产品中回收尼龙6产品的方法，并且提供一种再循环方法尼龙6产品，其中回收的尼龙6产物被解聚以回收高级己内酰胺。解决方案：将含有一种或多种作为杂质的防火剂的尼龙6产品在清洗液中进行热处理，从而回收不含来自防火剂的成分的尼龙6产品。回收的尼龙6产物被解聚以回收己内酰胺。即使作为原料的尼龙6产品被染色，在热处理期间也可以脱色。版权所有（C）2010，JPO＆INPIT

25. 发明专利

JP2008137929A Method for recovering caprolactam from nylon 6 fiber containing dye 审中-公开
标题翻译：用于从尼龙6纤维含有染色体回收卡波米特的方法
公开(公告)号：JP2008137929A
公开(公告)日：2008-06-19
申请号：JP2006324419
申请日：2006-11-30
申请人： Toray Ind Inc , 東レ株式会社
发明人： KATSURAGI HIDEFUSA , ONO TAKAE
IPC分类号： C07D201/12 , C07D223/10 , C08J11/00 , C08J11/10
CPC分类号： Y02W30/702
摘要： PROBLEM TO BE SOLVED: To provide a method for recovering caprolactam, with which a nylon 6 fiber containing a dye is heat-treated with an aqueous alkali solution to remove only a dye component and the nylon 6 fiber from which the dye component is removed is depolymerized. SOLUTION: The method for recovering caprolactam from a nylon 6 fiber containing a dye comprises a process (process a) for heat-treating a nylon 6 fiber containing a dye in an aqueous alkali solution and eluting the dye component in the aqueous alkali solution, a process (process b) for taking out the nylon 6 fiber in the aqueous alkali solution and a process (process c) for depolymerizing the nylon 6 fiber from which the dye component is removed to recover caprolactam. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种回收己内酰胺的方法，通过该方法，将含有染料的尼龙6纤维用碱水溶液进行热处理，仅除去染料成分和尼龙6纤维，染料成分被去除解聚。解决方案：从含有染料的尼龙6纤维中回收己内酰胺的方法包括在碱水溶液中热处理含有染料的尼龙6纤维并洗脱含水碱中的染料组分的方法（方法a）溶液，用于在碱性水溶液中取出尼龙6纤维的方法（方法b）和用于解聚除去染料组分的尼龙6纤维以回收己内酰胺的方法（方法c）。版权所有（C）2008，JPO＆INPIT

26. 发明专利

JP3285582B2 失效
公开(公告)号：JP3285582B2
公开(公告)日：2002-05-27
申请号：JP51010694
申请日：1993-10-13
IPC分类号： C07C209/62 , C07C211/12 , C07D201/12

27. 发明专利

JP3269588B2 失效
公开(公告)号：JP3269588B2
公开(公告)日：2002-03-25
申请号：JP10063793
申请日：1993-04-27
IPC分类号： C07D201/12 , C07D223/10 , C08G69/14

28. 发明专利

JP2001294571A METHOD FOR RECYCLING EPSILON-CAPROLACTAM 失效
公开(公告)号：JP2001294571A
公开(公告)日：2001-10-23
申请号：JP2000112565
申请日：2000-04-13
申请人： TORAY INDUSTRIES
发明人： SUGATA KOJI , KOMINAMI KAZUHIKO , NODA MINORU
IPC分类号： C07D223/10 , B29B17/04 , C07D201/12 , C08J11/16 , C08J11/26
摘要： PROBLEM TO BE SOLVED: To provide a recycle process for efficiently recovering used ε- caprolactam from nylon 6 waste including non-melting substances. SOLUTION: An acidic substance is added to the nylon 6 waste in an amount of

29. 发明专利

JP3048644B2 失效
公开(公告)号：JP3048644B2
公开(公告)日：2000-06-05
申请号：JP50387797
申请日：1996-06-13
IPC分类号： C07B61/00 , C07C51/06 , C07C53/126 , C07C55/14 , C07C209/62 , C07C211/12 , C07D201/12

30. 发明专利

JPH111471A DEPOLYMERIZATION OF POLYAMIDE 失效
公开(公告)号：JPH111471A
公开(公告)日：1999-01-06
申请号：JP15654398
申请日：1998-04-30
申请人： DSM NV
发明人： THOMISSEN PETRUS JOZEF HUBERTU
IPC分类号： C08F8/50 , C07D201/12 , C08J11/14 , C08J11/16
摘要： PROBLEM TO BE SOLVED: To depolymerize polyamide into its monomer components in a high conversion in water under a specific range of pressure by using an alkali or alkaline earth metal compound. SOLUTION: (A) One or more kinds of polyamides are depolymerized into its monomer components by using (B) at least one of alkali or alkaline earth metal compound as sodium hydroxide or sodium aminocaproate in water under a pressure of 0.2-2.0 MPa, preferably 0.5-1.8 MPa. The amount of the alkali or alkaline earth metal salt (B) is at least 0.1 wt.%, preferably at 0.2 wt.% based on the polyamide (A). According to this process, the polyamide can be rapidly depolymerized to its monomer components in high conversion, even when cyclic oligomers of high concentration are included in the polyamide.

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