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    • 9. 发明公开
    • METHOD FOR PRODUCING OLIGOMER AND/OR MONOMER BY DEGRADING BIODEGRADABLE RESIN
    • 用于生产低聚物和/或单体通过降解生物降解性树脂
    • EP3042961A1
    • 2016-07-13
    • EP16157855.4
    • 2009-10-27
    • Toyo Seikan Kaisha, Ltd.
    • Yoshikawa, SeishiKatayama, TsutakiKogure, Masahito
    • C12P7/62C12P7/56C12P7/46C12P7/44C08L67/00C08J11/10
    • C08J11/105C08J2367/04C12P7/44C12P7/46C12P7/56C12P7/62Y02W30/702
    • An object of the present invention is to provide a method for efficiently producing an oligomer or a monomer by degrading a biodegradable resin using an enzyme, so that the oligomer or the monomer can be recovered.
      The present invention provides a method for producing an oligomer and/or a monomer by degrading a biodegradable resin in a degradation liquid containing a biodegradation enzyme, a buffer agent, an organic solvent, and water. In this method, the SP value of the organic solvent is less than 8.5 or more than 11.5, and the percentage content of the organic solvent (by volume) in the degradation liquid is higher than 1% and lower than 15%. In the method for producing an oligomer or a monomer, the degradation percentage of the biodegradable resin is low, and deposits of aggregates of the oligomer and/or the monomer are few, so that the recovery percentage is high.
    • 本发明的一个目的是提供一种生产在高效低聚物,或通过使用酶的降解的生物降解性树脂的单体的方法,所以没有低聚物或单体可以恢复。 本发明提供了用于通过在含有生物降解酶,缓冲剂,有机溶剂的降解液降解的生物降解性树脂的制造低聚物和/或单体的水的方法,和。 在该方法中,有机溶剂的SP值比5.11小于8.5或更多,而在降解液中的有机溶剂(按体积计)的百分含量高于1%并低于15%。 在用于在低聚物或单体的制造方法,生物降解性树脂的降解百分数是低的,并且所述低聚和/或单体的聚集体的沉积少,所以没有恢复百分比高。