Spherical particles of thermosetting phenolic resin and process for
producing the same
    4.
    发明授权
    Spherical particles of thermosetting phenolic resin and process for producing the same 失效
    热固性酚醛树脂的球形颗粒及其制备方法

    公开(公告)号:US4839445A

    公开(公告)日:1989-06-13

    申请号:US141167

    申请日:1988-01-06

    CPC分类号: C08J3/16 C08J2361/06

    摘要: The present invention relates to a process for producing spherical thermosetting phenolic resin particles having a size of no larger than about 1,000 microns, and the spherical thermosetting phenolic resin particles produced by this process.In accordance with the process of the present invention, a novolak resin, and a nitrogenous basic compound, and, optionally, an aldehyde, are reacted while they are suspended in an aqueous medium in the presence of a suspension stabilizer.The thermosetting phenolic resin produced by the process of the present invention not only displays superior thermal curing characteristics during molding; the cured product fabricated by molding this resin also exhibits good physical properties such as improved mechanical strength and heat resistance. Therefore, the spherical thermosetting phenolic resin particles produced by the process of the present invention can be extensively used as molding materials, binders, adhesives, and in many other applications.

    摘要翻译: 本发明涉及一种制造尺寸不大于约1,000微米的球形热固性酚醛树脂颗粒的方法和通过该方法制备的球形热固性酚醛树脂颗粒。 根据本发明的方法,在悬浮稳定剂存在下将酚醛清漆树脂和含氮碱性化合物以及任选的醛反应在水性介质中。 通过本发明的方法制备的热固性酚醛树脂不仅在成型期间显示出优异的热固化特性; 通过模塑该树脂制造的固化产物也表现出良好的物理性能,例如改进的机械强度和耐热性。 因此,通过本发明的方法制造的球形热固性酚醛树脂颗粒可以广泛用作模塑材料,粘合剂,粘合剂以及许多其它应用。