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US 7,989,582 B2Granted
Process for producing poly-tetrahydrofuran
AssigneeHyosung Corporation
InventorsEun-Ku Lee, Yong-Ho Baek, Joon-Seok Oh, No-Hyun Kim, Jae-Young Huh
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Abstract
The present invention relates to a process for producing tetrahydrofuran polymer or tetrahydrofuran copolymer by using heteropolyacid catalyst, and more particularly, to a process for producing tetrahydrofuran polymer by using hydronium ion water having a pH of 5.5 or less as a reaction initiator in the initiation step.
Claims3
A process for producing tetrahydrofuran polymer from tetrahydrofuran in the presence of a heteropolyacid catalyst, wherein hydronium ion water having a pH adjusted in the initiation step is used as a reaction initiator.
Dependencies are inferred from the claim text.