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    • 1. 发明申请
    • METHOD FOR WASHING PREFOAMED PARTICLES
    • 洗涤预制颗粒的方法
    • WO1998017716A1
    • 1998-04-30
    • PCT/JP1997003670
    • 1997-10-14
    • KANEKA CORPORATIONIWAMOTO, TomonoriYAMAGUCHI, TakemaYAMAGUCHI, Minori
    • KANEKA CORPORATION
    • C08J09/18
    • C08J9/224B29C44/3461C08J2323/16
    • A method for washing prefoamed particles, comprising washing prefoamed particles prepared by depressurization foaming and having a sparingly water-soluble inorganic compound as a dispersant deposited thereon with an aqueous solution of a water-soluble compound having in its molecule at least one functional group and at least one hydrophilic functional group bondable to the surface of the sparingly water-soluble inorganic compound. This washing method enables prefoamed particles reduced in the amount of an inorganic dispersant deposited thereon to be prepared by depressurization foaming by using the same equipment as the one used in washing with water or hot water without the use of a large amount of water or hot water.
    • 一种用于洗涤预发泡颗粒的方法,包括洗涤通过减压发泡制备的预发泡颗粒,并将具有微溶于水的无机化合物作为分散剂沉积在其上,其中分子中具有至少一个官能团的水溶性化合物的水溶液, 至少一个与微水溶性无机化合物的表面可键合的亲水官能团。 这种洗涤方法使得通过使用与用水或热水洗涤中使用的相同的设备而不使用大量的水或热水,通过减压发泡制备的沉积在其上的无机分散剂的量减少的预发泡颗粒 。