14.
    发明专利
    未知

    公开(公告)号:BR7705457A

    公开(公告)日:1978-05-02

    申请号:BR7705457

    申请日:1977-08-17

    Applicant: BAYER AG

    Abstract: The present invention relates to a process for the production of polyurethane ureas from a prepolymer which contains isocyanate groups and a mixture of hardeners containing amino groups, in the presence of water, and optionally in the presence of solvents, characterized in that the mixture of hardeners comprises compounds corresponding to the following general formulae:

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