公开(公告)号：US20050179170A1

公开(公告)日：2005-08-18

申请号：US11085154

申请日：2005-03-22

申请人： Kenneth Wynne ,  Younosuke Ohsaka ,  Suresh Shenoy ,  Sadashige Irie ,  Takako Ohsaka

发明人： Kenneth Wynne ,  Younosuke Ohsaka ,  Suresh Shenoy ,  Sadashige Irie ,  Takako Ohsaka

IPC分类号： B01J3/00 ,  C08F2/00 ,  C08J9/12 ,  C08K3/20 ,  H05B6/00

CPC分类号： C08J9/122 ,  B01J3/008 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2327/12 ,  C08K3/20 ,  Y02P20/544 ,  C08L27/12

摘要： Fluoropolymer materials containing tetrafluoroethylene monomers, such as PTFE, are significantly swollen by supercritical carbon dioxide at high temperatures and pressures. The swollen fluoropolymer is processable by molding, extrusion, and other techniques. In addition, the fluoropolymer may be sintered at significantly lower temperatures compared to a nonswollen fluoropolymer material. The melting temperature of fluorinated polymers containing tetrafluoroethylene and triflouroethylene monomers which are swollen with supercritical carbon dioxide is significantly reduced, thereby permitting manufacturing operations such as extruding and molding to be performed at lower temperatures and with reduced risk of decomposition.

公开(公告)号：US20050239951A1

公开(公告)日：2005-10-27

申请号：US11166169

申请日：2005-06-27

申请人： Kenneth Wynne ,  Younosuke Ohsaka ,  Takako Ohsaka ,  Suresh Shenoy ,  Sadashige Irie

发明人： Kenneth Wynne ,  Younosuke Ohsaka ,  Takako Ohsaka ,  Suresh Shenoy ,  Sadashige Irie

IPC分类号： B01J3/00 ,  C08F2/00 ,  C08J9/12 ,  C08K3/20

CPC分类号： C08J9/122 ,  B01J3/008 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2327/12 ,  C08K3/20 ,  Y02P20/544 ,  C08L27/12

摘要： Fluoropolymer materials containing tetrafluoroethylene monomers, such as PTFE, are significantly swollen by supercritical carbon dioxide at high temperatures and pressures. The swollen fluoropolymer is processable by molding, extrusion, and other techniques. In addition, the fluoropolymer may be sintered at significantly lower temperatures compared to a nonswollen fluoropolymer material. The melting temperature of fluorinated polymers containing tetrafluoroethylene and triflouroethylene monomers which are swollen with supercritical carbon dioxide is significantly reduced, thereby permitting manufacturing operations such as extruding and molding to be performed at lower temperatures and with reduced risk of decomposition.