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    • 5. 发明授权
    • Skin sulfonated particles in matrices
    • 皮肤磺化颗粒在基质中
    • US5849818A
    • 1998-12-15
    • US72398
    • 1993-06-03
    • Wilhelm E. WallesLuis C. Mulford
    • Wilhelm E. WallesLuis C. Mulford
    • C04B16/10C04B18/20C04B18/24C08J11/04C08J3/00
    • C08J11/04C04B16/10C04B18/20C04B18/241C08J2321/00Y02P20/143Y02W30/70Y02W30/96Y02W30/97
    • Solid organic polymers, for example, rubber and plastic particles, which may include coated papers, to especially include as recovered from recycle streams, can be made to have a sulfonated outer layer by treatment with a reactant gas containing sulfur trioxide. A silo apparatus can be employed to make these sulfonated particles, wherein untreated particles fall through the silo which is provided with a reactant gas supply. The sulfonated particles may optionally be neutralized, for example, with moist ammonia. These sulfonated particles can be used in articles of manufacture such as aggregates in cements, organic resins, cellulosics, and so forth, with beneficial properties being imparted to the composite. When used in a Portland cement, for example, increased performance concrete can result. Also, sulfonated sheets may be correspondingly employed for the sulfonated particles.
    • 通过用含有三氧化硫的反应物气体处理,固体有机聚合物,例如橡胶和塑料颗粒,其可以包括涂布纸,特别包括从循环物流中回收的可以制成具有磺化的外层。 可以使用筒仓装置来制备这些磺化颗粒,其中未处理的颗粒通过设置有反应物气体供应的料仓落下。 磺化颗粒可以任选地例如用湿氨中和。 这些磺化颗粒可以用在制品中,例如在水泥,有机树脂,纤维素等中的聚集体,赋予复合材料有益的性质。 例如,当在波特兰水泥中使用时,会增加性能混凝土。 此外,磺化片可以相应地用于磺化颗粒。