公开(公告)号：DE19748833A1

公开(公告)日：1999-05-06

申请号：DE19748833

申请日：1997-11-05

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  BAUMGAERTEL MICHAEL DR ,  LOTH WOLFGANG DR ,  SCHADE CHRISTIAN DR ,  WITTSTOCK KLAUS DR

IPC: B01J19/24 ,  C08F2/00 ,  C08F36/04 ,  C08F36/00

Abstract: The invention relates to a continuous method for producing slightly gelified diene rubber, through anionic polymerisation or copolymerisation of a diene and, optionally, of a vinyl aromatic compound, in a tubular reactor. The method is characterised in that the reaction is performed at a pressure greater than the atmospheric pressure, in a hydraulically filled closed loop reactor (recirculation reactor) composed of tubular reactor members, and in that the method parameters are selected so that the concentration in diene monomers in the reaction mixture in a spatial medium is lower than 10 % wt.