公开(公告)号：DE19547212A1

公开(公告)日：1997-06-19

申请号：DE19547212

申请日：1995-12-18

Applicant: BASF AG

Inventor： FRIEDRICH KLAUS DR ,  GUENTHERT PAUL DR ,  KUNTZE THOMAS DR ,  SCHETSCHORKE ULRICH ,  HAGEN HELMUT DR ,  BUELOW GERD DR ,  BAUS ULF DR ,  BECKMANN EBERHARD DR

IPC: C04B24/16 ,  C08F2/34 ,  C08F12/04 ,  C08F32/08 ,  C09K23/00 ,  C09K23/52 ,  C08F8/34 ,  C08F232/08 ,  C04B24/26 ,  B01F17/52 ,  C14C3/22 ,  D21H17/58

Abstract: Poly:sulphonic acid polymers (P) - prepared by the polymerisation of monomers chosen from 8-20C vinyl aromatic compounds or indene (derivatives) of formula (I) in the presence of sulphur trioxide: R=1-6C alkyl;R1-R4=H or 1-6C alkyl;and n=0-3. Also claimed are (i) the preparation of (P) by reacting the above monomers in the presence of sulphur trioxide at 0 - 200 deg C; and (ii) the preparation of aryl sulphonic acid monomers by reacting aromatic hydrocarbons with sulphur trioxide at 0 - 200 deg C, in which the reagents are nebulised by passing them through a nozzle, optionally with an inert gas.