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    • 5. 发明公开
    • COMPOSITE PAVEMENT STRUCTURE
    • ZUSAMMUSTRETZTE PFLASTERUNGSSTRUKTUR
    • EP2516345A1
    • 2012-10-31
    • EP10788460.3
    • 2010-12-01
    • Reynolds Presto Products, Inc.BASF SE
    • HICKS, StevenBOWER, David, K.HANDLOS, William
    • C04B26/16C04B20/10C03C17/00C03C17/30
    • A composite pavement structure comprises a wearing course layer and a base course layer disposed below the wearing course layer. The wearing course layer comprises aggregate, e.g. glass and rock, and an elastomeric composition. The elastomeric composition comprises the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate component comprises a polymeric isocyanate, and optionally, an isocyanate-prepolymer. The isocyanate-reactive component comprises a hydrophobic polyol and a chain extender having at least two hydroxyl groups and a molecular weight of from about 62 to about 220. The chain extender is present in the isocyanate-reactive component in an amount of from about 1 to about 20 parts by weight based on 100 parts by weight of the isocyanate-reactive component. The base course layer comprises aggregate which is the same or different than the aggregate of the wearing course layer. Methods of forming the composite pavement structure are also disclosed.
    • 公开了一种用于制造复合路面结构的方法,其包括底漆玻璃聚集体颗粒和聚合粘合剂组合物。 还公开了用于起泡玻璃聚集体颗粒的系统和方法。 在一个实施方案中,玻璃聚集体颗粒的直径范围为约0.1至约0.5英寸,并且在溶液中暴露于偶联剂,例如水性氨基硅烷溶液,其量为约1至约10重量份的基于溶液的 在100重量份的玻璃聚集体颗粒中,其中所述水溶液包含基于100重量份溶液约0.01至约5.0重量份的偶联剂。 曝光后,使底漆反应并与玻璃骨料颗粒结合一段预定的时间,以提供底漆的玻璃颗粒,例如甲硅烷基化玻璃颗粒,然后干燥。 一旦将底漆的玻璃和聚合物粘合剂组合物混合,就允许它们反应并结合以提供复合路面结构。