Process for producing polyetherglycol

Details Process for producing polyetherglycol Process for producing polyetherglycol

C - Chemistry, Metallurgy

07

C

260/634.3, 260/6

C07C 43/13 (2006.01) C08G 65/06 (2006.01) C08G 65/20 (2006.01)

Patent

CA 1216597

ABSTRACT A process for producing a polyoxytetramethylene glycol or a copolymerized polyetherglycol by polymerizing tetrahydrofuran or a mixture of tetrahydrofuran with other cyclic ethers copolymerizable therewith, which comprises using a heteropoly-acid as a catalyst and per- mitting 0.1 to 15 mol of water per mol of the heteropoly- acid to be present in the catalyst phase. The above-described polymer and copolymer are industrially useful polymers which can be used as the primary starting materials for polyurethanes to be used for a spandex and a synthetic leather, solvents, pressured fluids, etc.

454059

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