-
公开(公告)号:EP0614747A1
公开(公告)日:1994-09-14
申请号:EP94301020.7
申请日:1994-02-11
CPC分类号: B29C47/60 , B01J19/20 , B29C47/0009 , B29C47/38 , B29K2033/12
摘要: The residence time distribution of materials in an extruder can modified to give a residence time distribution comparable to that obtained in a continuous stirred tank reactor by providing in the extruder a section having non intermeshing counter-rotating twin screws with flights having the same directional pitch.
摘要翻译: 修改材料在挤出机的反应或混合区域中的平均停留时间和停留时间分布,该挤出机具有彼此平行或相切并具有相同方向的入口,排出口和双非啮合反向旋转螺杆 沥青包括:(a)限制来自反应或混合区域的材料流向出口并朝向入口,(b)沿着沿着出口附近的区域朝向入口的方向沿着一个螺钉移动材料, (c)将材料转移到第二螺杆,以及(d)通过排出口将材料从反应或混合区排出。
-
公开(公告)号:EP0614747B1
公开(公告)日:1998-01-07
申请号:EP94301020.7
申请日:1994-02-11
CPC分类号: B29C47/60 , B01J19/20 , B29C47/0009 , B29C47/38 , B29K2033/12
-
公开(公告)号:EP0494543A1
公开(公告)日:1992-07-15
申请号:EP91312051.5
申请日:1991-12-27
发明人: Jerman, Robert Edward , Cohen, Leslie Alan , Miller, Glenn Wallace , Freed, William Thayer , Buhse, Lucinda Fisher
摘要: Polyglutarimides exhibit improved optical properties, as well as lowered content of non-aqueous volatiles, when the molten polyglutarimide is mixed with water, methanol and/or ethanol which is then removed prior to isolation and processing of the polyglutarimide.
摘要翻译: 当熔融的聚戊二酰亚胺与水,甲醇和/或乙醇混合时,聚戊二酰胺显示出改进的光学性能以及降低的非水挥发物的含量,然后在分离和加工聚戊二酰亚胺之前将其去除。
-
-