57.
    发明专利
    未知

    公开(公告)号:ES2174543T3

    公开(公告)日:2002-11-01

    申请号:ES98966341

    申请日:1998-12-16

    Applicant: BASF AG

    Abstract: The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.

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