Abrégé

A method can be used for manufacturing an ethylene-propylene-diene terpolymer for a fuel cell. A polymerization step includes subjecting an organic chelate compound forming a coordinate bond, a vanadium-based Ziegler-Natta catalyst, an organoaluminum compound, and ethylene, propylene, and diene monomers, together with a solvent, to polymerization in a reactor. A separation step includes recovering residual catalysts and unreacted monomers from the stream discharged from the reactor. An acquisition step includes recovering the solvent from the stream deprived of the residual catalysts and unreacted monomers to acquire the ethylene-propylene-diene terpolymer.

Classes IPC  ?

• C08F 210/06 - Propène
• C08F 4/68 - Vanadium, niobium, tantale ou leurs composés
• C08F 6/02 - Neutralisation de la masse de polymérisation, p. ex. destruction du catalyseur
• C08F 6/12 - Séparation des polymères à partir des solutions
• C08L 23/16 - Copolymères de l’éthylène et du propylène ou de l’éthylène, du propylène et de diène
• C08F 4/14 - Halogénures de bore ou halogénures d'aluminiumLeurs complexes avec des composés organiques contenant de l'oxygène
• C08F 2/04 - Polymérisation en solution

Abrégé

A method can be used for manufacturing an ethylene-propylene-diene terpolymer for a fuel cell. A polymerization step includes subjecting an organic chelate compound forming a coordinate bond, a vanadium-based Ziegler-Natta catalyst, an organoaluminum compound, and ethylene, propylene, and diene monomers, together with a solvent, to polymerization in a reactor. A separation step includes recovering residual catalysts and unreacted monomers from the stream discharged from the reactor. An acquisition step includes recovering the solvent from the stream deprived of the residual catalysts and unreacted monomers to acquire the ethylene-propylene-diene terpolymer.

Classes IPC  ?

• C08L 23/16 - Copolymères de l’éthylène et du propylène ou de l’éthylène, du propylène et de diène
• C08F 210/06 - Propène
• C08F 4/68 - Vanadium, niobium, tantale ou leurs composés
• C08F 4/14 - Halogénures de bore ou halogénures d'aluminiumLeurs complexes avec des composés organiques contenant de l'oxygène
• C08F 6/02 - Neutralisation de la masse de polymérisation, p. ex. destruction du catalyseur
• C08F 6/12 - Séparation des polymères à partir des solutions
• C08F 2/04 - Polymérisation en solution

Abrégé

The present invention relates to a method for preparing an ethylene-based elastic copolymer, and more particularly, to a method for preparing an ethylene-based elastic copolymer by using a catalyst composition for preparing an ethylene-based elastic copolymer, the catalyst composition comprising a binuclear constrained geometry transition metal compound, as a main catalyst, having a structural advantage to obtain a high-molecular-weight ethylene-based elastic copolymer due to a high polymerization activity and comonomer reactivity because the binuclear constrained geometry transition metal compound has a structure in which cyclopentadiene ligands of two constrained geometry catalysts are linked by 1,4-phenylene, and one or more cocatalyst compounds selected from the group consisting of an organoaluminum compound, an organoaluminoxane compound, and a boron compound.

Classes IPC  ?

• C08F 4/6592 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
• C08F 210/16 - Copolymères de l'éthylène avec des alpha-alcènes, p. ex. caoutchoucs EP
• C07F 17/00 - Metallocènes

Abrégé

The present invention relates to a method for preparing an ethylene-based elastic copolymer and, more specifically, to a method for preparing an ethylene-based elastic copolymer by using a catalyst composition for preparing an ethylene-based elastic copolymer, the composition using, as a main catalyst, a binuclear constrained geometry transition metal compound having a structural advantage in the obtainment of a high-molecular-weight ethylene-based elastic copolymer due to a high polymerization activity and comonomer reactivity since the binuclear constrained geometry transition metal compound has a structure in which two cyclopentadiene ligands of a constrained geometry catalyst are linked by a 1,4-phenylene, and comprising one or more cocatalyst compounds selected from the group consisting an organoaluminum compound, an organoaluminoxane compound and a boron compound.

Classes IPC  ?

• C08F 4/6192 - Composant couvert par le groupe contenant une liaison métal de transition-carbone contenant au moins un cycle cyclopentadiényle, condensé ou non, p. ex. un cycle indényle ou fluorényle
• C08F 4/619 - Composant couvert par le groupe contenant une liaison métal de transition-carbone
• C08F 4/52 - MétauxHydrures métalliquesComposés organiques de métalLeur utilisation comme précurseurs de catalyseurs choisis parmi les métaux légers, le zinc, le cadmium, le mercure, le cuivre, l'argent, l'or, le bore, le gallium, l'indium, le thallium, les terres rares ou les actinides choisis parmi le bore, l'aluminium, le gallium, l'indium, le thallium ou les terres rares
• C08F 4/602 - Composant couvert par le groupe avec un composé d'organo-aluminium
• C08F 210/16 - Copolymères de l'éthylène avec des alpha-alcènes, p. ex. caoutchoucs EP
• C08F 2/38 - Polymérisation utilisant des régulateurs, p. ex. des agents d'arrêt de chaîne