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1. 发明授权

US06169162A Continuous polyamidation process 有权
标题翻译：连续聚酰胺化工艺
公开(公告)号：US06169162A
公开(公告)日：2001-01-02
申请号：US09317340
申请日：1999-05-24
申请人： Gregory E. Bush , Chris E. Schwier , Robert M. Lembcke , Steven W. Cook
发明人： Gregory E. Bush , Chris E. Schwier , Robert M. Lembcke , Steven W. Cook
IPC分类号： C08G6900
CPC分类号： C08G69/04 , C08G69/28
摘要： A process for producing a polyamide from dicarboxylic acid monomer and diamine monomer comprises the steps of: (a) mixing molten dicarboxylic acid monomer and molten diamine monomer in equimolar amounts, thereby producing a molten reaction mixture; (b) flowing the reaction mixture through at least one unvented reaction vessel, the residence time of the reaction mixture in the at least one unvented reaction vessel being between about 0.01 minutes and about 30 minutes, thereby forming a first product stream that comprises polyamide and water of polymerization; and (c) flowing the first product stream through at least one vented vessel, whereby water of polymerization is removed, thereby forming a second product stream that comprises polyamide. The process can operate continuously, and there is no need to add water to the dicarboxylic acid, to the diamine, or to the reaction mixture.
摘要翻译：一种由二羧酸单体和二胺单体制备聚酰胺的方法包括以下步骤：（a）将熔融二羧酸单体和熔融二胺单体以等摩尔量混合，从而产生熔融反应混合物; （b）使反应混合物流过至少一个未经反应的反应容器，反应混合物在至少一个未通过的反应容器中的停留时间为约0.01分钟至约30分钟，从而形成第一产物流，其包含聚酰胺和聚合水; 和（c）使第一产物流通过至少一个排气容器，由此除去聚合水，从而形成包含聚酰胺的第二产物流。该方法可以连续操作，不需要向二羧酸，二胺或反应混合物中加入水。

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