Catalytic system based on rare earth and magnesium. novel...

Details Catalytic system based on rare earth and magnesium. novel... Catalytic system based on rare earth and magnesium. novel...

C - Chemistry, Metallurgy

08

F

C08F 10/02 (2006.01) B01J 23/10 (2006.01) B01J 31/12 (2006.01) C07C 31/28 (2006.01) C08F 4/52 (2006.01) C08F 4/54 (2006.01) C08F 20/06 (2006.01) C08F 210/02 (2006.01)

Patent

CA 2378450

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.

L'invention concerne un système catalytique à base de terre rare et de magnésium et son utilisation pour la polymérisation de composés insaturés. Le système catalytique de l'invention est caractérisé en ce qu'il comprend un composé constitué par le produit de la réaction entre: un alcoolate de terre rare; un organo-magnésien. L'alcoolate peut être préparé notamment par réaction d'un halogénure de terre rare avec un alcoolate d'alcalin ou d'alcalino-terreux. L'invention concerne aussi un alcoolate de néodyme qui est caractérisé en ce que l'alcoolate est un tertiobutylate ou un tertioamylate et en ce qu'il ne comporte pas de chlore dans sa structure. Le système de l'invention peut être utilisé plus particulièrement pour la polymérisation de l'éthylène ou du méthacrylate de méthyle et leur copolymérisation.

Affiliated with

Also associated with

Rating

Catalytic system based on rare earth and magnesium. novel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalytic system based on rare earth and magnesium. novel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic system based on rare earth and magnesium. novel... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1747327