公开(公告)号：MY153648A

公开(公告)日：2015-03-13

申请号：MYPI20085186

申请日：2007-06-13

Applicant: BASF SE

Inventor： CHRISTIAN DIENES ,  MARCO KRÜGER ,  STEFAN MÜSSIG ,  JÖRG ERBES ,  ACHIM STAMMER ,  KARL-HEINZ WASSMER ,  MARTIN WESSER ,  GERHARD LANGE

IPC: C08G75/23 ,  C08G75/20

Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARATION OF POLYSULPHONES WITH YELLOWNESS INDEX TO DIN 6167 SMALLER THAN 19 AND OF POLYETHER SULPHONES WITH YELLOWNESS INDEX TO DIN 6167 SMALLER THAN 30, CHARACTERIZED IN THAT THE POLYMERIZATION REACTION IS CARRIED OUT IN BASIC, APROTIC SOLVENTS, USING A MECHANICAL AGITATOR WHICH PASSES CLOSE TO THE WALL. THE PRESENT INVENTION ALSO RELATES TO THE POLYETHER SULPHONES AND POLYSULPHONES OBTAINABLE FOR THE FIRST TIME BY THIS PROCESS, AND TO THE USE OF THESE POLYMERS FOR PRODUCTION OF MOULDINGS, FOILS, MEMBRANES AND FOAMS.