Method for producing polytetrahydrofuran with low colour index

Details Method for producing polytetrahydrofuran with low colour index Method for producing polytetrahydrofuran with low colour index

C - Chemistry, Metallurgy

08

G

C08G 65/20 (2006.01) B01J 23/24 (2006.01)

Patent

CA 2300969

The invention relates to a method for producing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers with low colour index by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer on a heterogeneous catalyst. The invention is characterized in that polymerization takes place in the presence of hydrogen.

L'invention concerne un procédé pour la préparation de polytétrahydrofurane, de copolymères de tétrahydrofurane, de diesters ou de monoesters de ces polymères à faible indice colorimétrique par polymérisation de tétrahydrofurane en présence d'au moins un télogène et/ou d'un comonomère sur un catalyseur hétérogène, caractérisé en ce que la polymérisation s'effectue en présence d'hydrogène.

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