VERFAHREN ZUR HERSTELLUNG HOCHMOLEKULARER POLYAMIDE
    62.
    发明授权
    VERFAHREN ZUR HERSTELLUNG HOCHMOLEKULARER POLYAMIDE 有权
    用于生产高分子尼龙

    公开(公告)号:EP1776409B1

    公开(公告)日:2008-05-07

    申请号:EP05777287.3

    申请日:2005-07-30

    Applicant: BASF SE

    CPC classification number: C08G69/48

    Abstract: Disclosed is a method for producing high-molecular polyamides. Said method is characterized in that a polyamide A) is reacted with a compound B) at a temperature ranging from 150 to 350 °C, said compound B) releasing isocyanic acid at said reaction temperature. The concentration of the terminal amino groups in the used polyamide A) is greater than or equal to the concentration of the terminal carboxyl groups.

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