Method for producing polytetrahydrofuran

Details Method for producing polytetrahydrofuran Method for producing polytetrahydrofuran

C - Chemistry, Metallurgy

08

G

C08G 65/10 (2006.01) B01J 27/053 (2006.01) C07C 67/24 (2006.01) C08G 65/20 (2006.01) C08G 65/26 (2006.01)

Patent

CA 2294028

The invention relates to a method for producing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogene and/or comonomer on a sulfate-containing heterogeneous supported catalyst. A sulfate-containing heterogeneous supported catalyst is used containing at least one metal sulfate, metal hydrogen sulfate, metal oxide sulfate or mixtures thereof.

Procédé de fabrication de polytétrahydrofuranne, de copolymères de polytétrahydrofuranne, de diesters ou de monoesters de ces polymères, par polymérisation de tétrahydrofuranne en présence d'au moins un télogène et/ou un comonomère sur un catalyseur sur support hétérogène sulfaté, caractérisé en ce qu'on utilise un catalyseur sur support hétérogène sulfaté renfermant au moins un sulfate métallique, un hydrogénosulfate métallique, un sulfate d'oxyde métallique ou des mélanges de tels sulfates.

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