7.
    发明专利
    未知

    公开(公告)号:DE10112117A1

    公开(公告)日:2002-09-19

    申请号:DE10112117

    申请日:2001-03-14

    Applicant: BASF AG

    Abstract: The invention relates to a method for purifying a polyalcohol of general formula (I) wherein R can be the same or different and can represent a substituted or unsubstituted aliphatic hydrocarbon having 1 - 22 C atoms, an aryl or an arylalkyl group having 6 - 22 C atoms or a methylol group. By treating the polyalcohols of general formula (I) with at least one acid and/or basic ion exchanger, the CPR value can be adjusted from 0 to +1.5.

    8.
    发明专利
    未知

    公开(公告)号:DE59601883D1

    公开(公告)日:1999-06-17

    申请号:DE59601883

    申请日:1996-02-21

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00702 Sec. 371 Date Aug. 26, 1997 Sec. 102(e) Date Aug. 26, 1997 PCT Filed Feb. 21, 1996 PCT Pub. No. WO96/27626 PCT Pub. Date Sep. 12, 1996Tetrahydrofuran/but-2-yne-1,4-diol copolymers containing C-C triple bonds and having an average molecular weight Mn of from 500 to 3500 Dalton and a content of from 0.5 to 3 mol of triple bonds/mol of copolymer and blends of these copolymers with polytetrahydrofuran having an average molecular weight Mn of from 500 to 3500 Dalton, processes for their preparation and their use.

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