Reactive phenolic resin modifier
    9.
    发明授权
    Reactive phenolic resin modifier 失效
    活性酚醛树脂改性剂

    公开(公告)号:US5866642A

    公开(公告)日:1999-02-02

    申请号:US063056

    申请日:1993-05-19

    CPC分类号: C08H6/00

    摘要: A low molecular weight lignin fraction having a pre-selected molecular weight range prepared from lignin solution by ultrafiltration. The invention also relates to phenol-formaldehyde resin modified by the lignin fraction, adhesive comprising the modified resin, and a method for producing the lignin fraction and the resin.

    摘要翻译: 通过超滤由木质素溶液制备的具有预选分子量范围的低分子量木质素级分。 本发明还涉及由木质素部分改性的酚醛树脂,包含改性树脂的粘合剂,以及木质素部分和树脂的制造方法。