公开(公告)号：BR9906753A

公开(公告)日：2000-10-17

申请号：BR9906753

申请日：1999-02-05

Applicant: BASF AG

Inventor： SCHADE CHRISTIAN ,  FISCHER WOLFGANG ,  GAUSEPOHL HERMANN ,  KNOLLL KONRAD ,  WARZELHAN VOLKER ,  FONTANILLE MICHEL ,  DEFFIEUX ALAIN ,  DESBOIS PHILIPPE

IPC: C08F4/54 ,  C08F4/46 ,  C08F12/04 ,  C08F36/04 ,  C08F236/10 ,  C08F297/06

Abstract: In a process for the homopolymerization of vinylaromatic monomers or the copolymerization of vinylaromatic monomers and dienes in the presence of at least one alkali metal compound and at least one compound of an element of group 3a of the Periodic Table of the elements, the compounds contain, based on the sum of molar equivalents of alkali metal and elements of group 3a, in each casea) from 0.1 to 3.9 molar equivalents of oxygen, sulfur, nitrogen or phosphorus andb) from 0.1 to 3.9 molar equivalents of an organyl ligand.

公开(公告)号：DE19843687A1

公开(公告)日：2000-03-30

申请号：DE19843687

申请日：1998-09-24

Applicant: BASF AG

Inventor： JUENGLING STEPHAN ,  SCHADE CHRISTIAN ,  GAUSEPOHL HERMANN ,  WARZELHAN VOLKER ,  DESBOIS PHILIPPE ,  FONTANILLE MICHEL ,  DEFFIEUX ALAIN

IPC: C08F4/44 ,  C08F4/48 ,  C08F4/50 ,  C08F36/00 ,  C08F36/04

Abstract: The invention relates to a method for the anionic polymerisation of dienes in a solvent in the form of an aliphatic, isocyclic or aromatic hydrocarbon or hydrocarbon mixture, in the presence of an organic lithium polymerisation initiator and a dialkylmagnesium compound which is soluble in the hydrocarbon, the molar ratio of Mg/Li being greater than 0.8.

公开(公告)号：DE19806772A1

公开(公告)日：1999-08-19

申请号：DE19806772

申请日：1998-02-18

Applicant: BASF AG

Inventor： SCHADE CHRISTIAN ,  FISCHER WOLFGANG ,  GAUSEPOHL HERMANN ,  JUENGLING STEPHAN ,  WARZELHAN VOLKER ,  FONTANILLE MICHEL ,  DEFFIEUX ALAIN ,  DESBOIS PHILIPPE

IPC: C08F4/54 ,  C08F4/46 ,  C08F12/00 ,  C08F4/52 ,  C08F12/08

Abstract: A process for the production of an initiator composition (I) containing (A) an organoalkali metal and (B) an organoaluminum compound comprises homogeneously mixing the organometallic compounds dissolved in an inert hydrocarbon and allowing the mixture to mature at 0-120 deg C for at least 2 minutes. An Independent claim is included for a process for the anionic polymerization of monomers in the presence of the initiator (I).