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    • 96. 发明授权
    • Cationic aqueous bituminous aggregate slurries for hot climates
    • 阳离子含水沥青骨料用于炎热气候
    • US5320671A
    • 1994-06-14
    • US121109
    • 1993-09-14
    • Peter Schilling
    • Peter Schilling
    • C08L95/00
    • C08L95/005
    • Cationic aqueous bituminous emulsion-aggregate slurries are disclosed to be formed with aggregate and cationic emulsions prepared at elevated temperatures by emulsifying bitumen, such as an asphalt, in water with a cation-active emulsifier prepared as the reaction product of a polyamine with certain polycarboxylic acids or anhydrides wherein there is added to the aggregate mixing water prior to the addition of the bituminous emulsion, as set retarder, the blend of the respective reaction products of (1) a C.sub.8 -C.sub.15 alkylphenol and from 15 to 100 moles ethylene oxide and (2) a polyamine or of a modified polyamine with kraft lignin or maleinized kraft lignin and, preferably, their blends certain polycarboxylic acids and anhydrides.
    • 公开了阳离子含水沥青乳液聚集体浆料,其通过在高温下制备的聚合物和阳离子乳液形成,所述聚合物和阳离子乳液通过在多胺与某些多元羧酸的反应产物制备的阳离子活性乳化剂中在水中乳化沥青如沥青 或酸酐,其中在添加沥青乳液之前加入到混合水中,作为凝结缓凝剂,(1)C8-C15烷基酚和15-100摩尔环氧乙烷的相应反应产物的共混物和( 2)多胺或具有硫酸盐木质素或马来酸化牛皮纸木质素的改性多胺,并且优选其混合某些多元羧酸和酸酐。