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    • 83. 发明申请
    • PROCESS FOR PREPARING POLYTETRAHYDROFURAN AND DERIVATIVES THEREOF
    • 用于生产聚四氢呋喃和POLYTETRAHYDROFURANDERIVATEN
    • WO1998015589A2
    • 1998-04-16
    • PCT/EP1997005204
    • 1997-09-23
    • BASF AKTIENGESELLSCHAFTSIGWART, ChristophELLER, KarstenBECKER, RainerPLITZKO, Klaus-DieterFISCHER, RolfSTEIN, FrankMÜLLER, UlrichHESSE, Michael
    • BASF AKTIENGESELLSCHAFT
    • C08G65/10
    • C08G65/20C08G18/4854
    • The invention concerns a process for preparing polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butin-1,4-diol, diesters of these polymers with C2-C20 monocarboxylic acids or monoesters of these polymers with C1-C10 monocarboxylic acids by polymerizing tetrahydrofuran in the presence of one of the following telogens, water, 1,-4-butane diol, 2-butin-1,4-diol, polytetrahydrofuran with a molecular weight of between 200 and 700 Dalton, or of a C1-C10 monocarboxylic acid or a carboxylic acid anhydride produced from C2-C20 monocarboxylic acids or mixtures of these telogens on a heterogeneous carrier catalyst which contains a catalytically active amount of an oxygenous molybdenum and/or tungsten compound on an oxidic carrier material, and which has been calcined at temperatures of between 500 DEG C and 1000 DEG C after application of the precursor compounds of the oxygenous molybdenum and/or tungsten compounds to the carrier material precursors. Before it is used as a polymerization catalyst, the catalyst is activated by treatment with a reducing agent.
    • 一种用于制备聚四氢呋喃,四氢呋喃和2-丁炔-1,4-二醇的共聚物,这些聚合物与C2的二酯至C20单羧酸或这些聚合物与C1的单酯至C10由四氢呋喃的聚合单羧酸中的存在的过程 调聚体的水,1,4-丁二醇,2-丁炔-1,4-二醇,聚四氢呋喃具有200至700道尔顿,C1至C10单羧酸或C 2的羧酸酐至C20单羧酸或在这些调聚体的混合物的分子量 其含有含氧的钼和/或钨化合物在氧化载体材料和应用的含氧的钼和/或钨化合物到载体材料前体的前体化合物的在500℃下的温度下,以1000℃后的催化活性的量的多相负载的催化剂 C已被煅烧,由此催化剂之前其作为一个极使用,以 ymerisationskatalysator通过用还原剂处理而活化。