公开(公告)号：MY136795A

公开(公告)日：2008-11-28

申请号：MYPI20050469

申请日：2005-02-07

Applicant: BASF AG

Inventor： DEININGER JUERGEN ,  DEMETER JUERGEN DR ,  HAHN THILO DR ,  KORY GAD ,  SOETJE OLIVER ,  ZEHNER PETER DR

IPC: C08G69/04 ,  C08G69/16 ,  C08G69/28

Abstract: A CONTINUOUS PROCESS FOR PRODUCING POLYAMIDES, THEIR OLIGOMERS OR MIXTURES THEREOF, IF APPROPRIATE WITH FURTHER REACTION PRODUCTS, COMPRISES REACTION OF AMINONITRILES OR DINITRILES AND DIAMINES OR MIXTURES THEREOF, IF APPROPRIATE TOGETHER WITH FURTHER POLYAMIDE-FORMING MONOMERS AND/OR OLIGOMERS, WITH AN AQUEOUS MEDIUM COMPOSED OF AQUEOUS MONOMER AND OLIGOMER EXTRACTS OBTAINED FROM POLYAMIDE PRODUCTION BY EXTRACTION OF THE POLYMER WITH WATER IN A REACTOR WHICH HAS A VERTICAL LONGITUDINAL AXIS AND THROUGH WHICH THERE IS A FLOW SUBSTANTIALLY IN THE LONGITUDINAL DIRECTION WHEREIN WATER AND/OR THE AQUEOUS MEDIUM ARE INTRODUCED INTO THE REACTOR AT TWO OR MORE DIFFERENT LOCATIONS ALONG THE VERTICAL LONGITUDINAL AXIS, WHEREIN THE AQUEOUS MEDIUM IS INTRODUCED AT ONE OR MORE LOCATIONS.

公开(公告)号：MY134313A

公开(公告)日：2007-12-31

申请号：MYPI20031210

申请日：2003-04-01

Applicant: BASF AG

Inventor： WINTERLING HELMUT DR ,  BENISCH CHRISTOPH DR ,  HAHN THILO DR

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/20

Abstract: A PROCESS FOR PREPARING A POLYAMIDE BY REACTING A MIXTURE WHICH COMPRISES A MONOMER WHICH HAS A NITRILE GROUP AND HAS AT LEAST ONE OTHER FUNCTIONAL GROUP CAPABLE OF FORMING A CARBOXAMIDE GROUP, AND COMPRISES WATER, IN THE PRESENCE OF TITANIUM DIOXIDE AS CATALYST, WHICH COMPRISES USING TITANIUM DIOXIDE WHOSE BET SURFACE AREA, DETERMINED TO THE GERMAN STANDARD DIN 66 131 VOLUMETRICALLY BY THE MULTIPOINT METHOD, IS IN THE RANGE FROM 5 TO 35 M2/G.