METHOD FOR DEPOLYMERIZING POLYAMIDE AND METHOD FOR PRODUCING MONOMER OF POLYAMIDE
    5.
    发明公开
    METHOD FOR DEPOLYMERIZING POLYAMIDE AND METHOD FOR PRODUCING MONOMER OF POLYAMIDE 有权
    一种用于解聚的聚酰胺和方法用于生产单体聚酰胺过程

    公开(公告)号:EP1975156A4

    公开(公告)日:2009-04-22

    申请号:EP06823070

    申请日:2006-11-07

    Applicant: UBE INDUSTRIES

    Abstract: Disclosed is a commercially advantageous method for obtaining a monomer by performing a depolymerization reaction of a polyamide. Specifically disclosed is a method for obtaining a monomer through a depolymerisation reaction of a polyamide, wherein the depolymerization reaction is performed in the presence of a hydrocarbon solvent. In addition, the depolymerization reaction is performed in the presence of water. The ratio of water relative to the total mass of the hydrocarbon solvent and water is not more than 30 % by mass. The depolymerization reaction can be carried out without using a catalyst. Preferably, the depolymerization reaction is performed at a temperature not less than 300°C and not more than 420°C.

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