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US 2006/0258837 A1Published application
Method of producing tetrahydrofuran copolymers
AssigneeBASF SE
InventorsMartin Haubner, Rolf Pinkos
Life of this patent
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Abstract
The present invention relates to a process for the single-stage preparation of polyoxyalkylene glycols by copolymerization of THF and alpha, omega-diols in the presence of a heteropolyacid, wherein the content of organically bound nitrogen in the alpha, omega-diol is less than 15 ppm.
Claims16
A process for the single-stage preparation of polyoxyalkylene glycols comprising copolymerization of THF and neopentyl glycol in the presence of a heteropolyacid, wherein the content of organically bound nitrogen in the neopentyl glycol is less than 5 ppm.
Dependencies are inferred from the claim text.