Polymerization processes using dilute multi-component feeds

Details Polymerization processes using dilute multi-component feeds Polymerization processes using dilute multi-component feeds

C - Chemistry, Metallurgy

08

G

C08G 67/02 (2006.01)

Patent

CA 2357770

The invention relates to a method of forming carbon monoxide-containing polymers from multi-component syngas feeds and at least one vinyl comonomer. Feeds useful in the practice of the invention comprise ethylene in an amount ranging from about 5 to about 40 mole %, carbon monoxide is an amount ranging from about 1 to about 40 mole %, hydrogen in an amount ranging from about 4 to about 55 mole %, carbon dioxide in an amount ranging about 3 to about 10 mole %, and methane in an amount ranging from about 4 to about 85 mole %. The feed may also include acetylene in an amount ranging up to about 10 mole %. The feed may contain at least one free radical-polymerizable vinyl comonomer, or a cofeed containing such a comonomer can be used.

Cette invention concerne un procédé de formation de polymères contenant du monoxyde de carbone à partir de charges de gaz de synthèse à composantes multiples et d'au moins un comonomère vinylique. Les charges utiles d'un point de vue pratique dans l'invention comprennent l'éthylène en quantité comprise entre environ 5 et environ 40 mole %, le monoxyde de carbone en quantité comprise entre environ 1 et environ 40 mole %, l'hydrogène en quantité comprise entre environ 4 et environ 55 mole %, le dioxyde de carbone en quantité comprise entre environ 3 et environ 10 mole %, et le méthane en quantité comprise entre environ 4 et environ 85 mole %. La charge peut également comprendre l'acétylène en quantité supérieure à environ 10 mole %. La charge peut contenir au moins un comonomère vinylique à radical libre polymérisable, ou on peut utiliser une co-charge contenant un comonomère de ce type.

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