发明授权
US6075117A Process for the hydrolysis of adiponitrile and the production of nylon
6,6 using dicarboxylic acids as the sole catalyst
有权
己二腈的水解方法和使用二羧酸作为唯一催化剂生产尼龙6,6的方法
- 专利标题： Process for the hydrolysis of adiponitrile and the production of nylon 6,6 using dicarboxylic acids as the sole catalyst
- 专利标题（中）： 己二腈的水解方法和使用二羧酸作为唯一催化剂生产尼龙6,6的方法
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申请号： US217798申请日： 1998-12-21
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公开(公告)号： US6075117A公开(公告)日： 2000-06-13
- 发明人: Richard Allen Hayes , David Neil Marks , Maria Van Eijndhoven
- 申请人： Richard Allen Hayes , David Neil Marks , Maria Van Eijndhoven
- 申请人地址： DE Wilmington
- 专利权人： E.I. Dupont De Nemours & Company
- 当前专利权人： E.I. Dupont De Nemours & Company
- 当前专利权人地址： DE Wilmington
- 主分类号： C08G69/28
- IPC分类号： C08G69/28 ; C08G69/04 ; C08G69/26
摘要：
A process for the hydrolysis of a dinitrile (e.g., adiponitrile) utilizing a dicarboxylic acid (e.g., adipic acid) as the sole catalyst followed by addition of a diamine (e.g., hexamethylenediamine) and heating to produce polymerization. Such a process is particularly usefull in the production of nylon 6,6 having a low BHMT content and improved melt stability.
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