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公开(公告)号:US5849804A
公开(公告)日:1998-12-15
申请号:US670948
申请日:1996-06-26
CPC分类号: C08J11/08 , C08J3/14 , C08J2377/00 , Y02W30/701
摘要: A process for recovering polyamide from composite articles that contain polyamide involves (a) subjecting at substantially nondepolymerizing conditions the composite article to a solvent for polyamide for a time sufficient to dissolve substantially all of the polyamide and leaving an insoluble fraction; (b) separating insoluble fraction of the composite article from the dissolved polyamide; and (c) precipitating the dissolved polyamide with appropriate precipitants.
摘要翻译: 用于从含有聚酰胺的复合制品中回收聚酰胺的方法包括(a)在基本上非聚合条件下将复合制品经受聚酰胺溶剂足以溶解基本上所有聚酰胺并留下不溶性部分的时间; (b)将复合制品的不溶部分与溶解的聚酰胺分离; 和(c)用合适的沉淀剂沉淀溶解的聚酰胺。