1.
    发明专利
    未知

    公开(公告)号:AT545670T

    公开(公告)日:2012-03-15

    申请号:AT04741045

    申请日:2004-07-15

    Applicant: BASF SE

    Abstract: The present invention relates to a process for preparing autocatalytic polyether alcohols by reacting H-functional starter substances containing at least one amino group which is catalytically active in the urethane reaction, in particular a tertiary amino group, and at least one group which is reactive toward alkylene oxides, in particular a primary and/or secondary amino group and/or hydroxyl group, with alkylene oxides, which comprises a) dissolving the starter substance in a solvent, b) reacting the solution with alkylene oxides.

    3.
    发明专利
    未知

    公开(公告)号:DE112007000865A5

    公开(公告)日:2009-02-26

    申请号:DE112007000865

    申请日:2007-04-16

    Applicant: BASF SE

    Abstract: The present invention relates to a process for producing a polyurethane elastomer fiber, which comprises a) reacting polymeric diol with a substance reactive therewith to form an OH-terminated prepolymer, b) reacting the OH-terminated prepolymer with a diisocyanate to form an isocyanate-terminated prepolymer, c) reacting the isocyanate-terminated prepolymer with a chain extender, if appropriate a chain-terminating agent and if appropriate further additives to form the polyurethane elastomer, and d) spinning the polyurethane elastomer to form a fiber, in which there are less than 15% by weight of further polyurethane elastomers in the fiber. The present invention further relates to a polyurethane elastomer fiber obtainable by such a process, to its use for producing textiles, for example wovens or knits, and also to the use of a polyurethane elastomer for producing such a fiber.

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