发明授权
- 专利标题： Recovery of polyamides from composite articles
- 专利标题（中）： 从复合制品中回收聚酰胺
-
申请号： US670948申请日： 1996-06-26
-
公开(公告)号： US5849804A公开(公告)日： 1998-12-15
- 发明人: Arlen K. Sarian , Alan C. Handermann , Simon Jones , Edward Alan Davis , Atish Adhya
- 申请人： Arlen K. Sarian , Alan C. Handermann , Simon Jones , Edward Alan Davis , Atish Adhya
- 申请人地址： NJ Mt. Olive DEX Ludwigshafen
- 专利权人： BASF Corporation,BASF Aktiengesellschaft
- 当前专利权人： BASF Corporation,BASF Aktiengesellschaft
- 当前专利权人地址： NJ Mt. Olive DEX Ludwigshafen
- 主分类号： C08J3/14
- IPC分类号： C08J3/14 ; C08J11/08 ; C08J11/04
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.
信息查询
