CATALYTIC SYSTEM BASED ON RARE EARTH AND MAGNESIUM. NOVEL NEODYMIUM ALCOHOLATE, USE FOR POLYMERISING UNSATURATED COMPOUNDS
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
WO0102446(A1)
申请公布日期
2001.01.11
申请号
WO2000FR01863
申请日期
2000.06.30
申请人
RHODIA TERRES RARES;UNIVERSITE DES SCIENCES ET TECHNOLOGIES DE LILLE;CARPENTIER, JEAN-FRANCOIS;CHENAL, THOMAS;GROMADA, JEROME;MORTREUX, ANDRE
发明人
CARPENTIER, JEAN-FRANCOIS;CHENAL, THOMAS;GROMADA, JEROME;MORTREUX, ANDRE