| 摘要 |
PCT No. PCT/EP98/05319 Sec. 371 Date Dec. 13, 1999 Sec. 102(e) Date Dec. 13, 1999 PCT Filed Jun. 10, 1998 PCT Pub. No. WO98/58982 PCT Pub. Date Dec. 30, 1998The 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. |
