发明名称 |
SYSTEME CATALYTIQUE A BASE DE TERRE RARE ET DE MAGNESIUM, NOUVEL ALCOOLATE DE NEODYME, UTILISATION POUR LA POLYMERISATION DE COMPOSES INSATURES |
摘要 |
The invention concerns a catalytic system based on rare earth and magnesium and its use for polymerising unsaturated compounds. The inventive catalytic system is characterised in that it comprises a compound consisting of the reaction product between: a rare earth alcoholate; an organo-magnesium. The alcoholate can be prepared in particular by reacting a rare earth halide with an alkaline or alkaline-earth alcoholate. The invention also concerns a neodymium alcoholate characterised in that the alcoholate is a tert-butylate or a tert-amylate and it does not contain chlorine in its structure. The inventive system can be used more particularly for polymerising methyl ethylene or methacrylate and for copolymerising them. |
申请公布号 |
FR2795976(B1) |
申请公布日期 |
2001.10.05 |
申请号 |
FR19990008648 |
申请日期 |
1999.07.05 |
申请人 |
RHODIA TERRES RARES |
发明人 |
CARPENTIER JEAN FRANCOIS;CHENAL THOMAS;GROMADA JEROME;MORTREUX ANDRE |
分类号 |
B01J23/10;B01J31/02;B01J31/12;C07C31/28;C08F4/44;C08F4/52;C08F4/54;C08F10/02;C08F10/06;C08F20/10;C08F36/06;C08F210/02 |
主分类号 |
B01J23/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|