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    • 10. 发明授权
    • Bituminous compositions containing residues of hydrolyzed or alcoholized
polymers
    • 含有水解或醇化聚合物残留物的白色组合物
    • US5104932A
    • 1992-04-14
    • US658626
    • 1991-02-21
    • Francois Dawans
    • Francois Dawans
    • C08G18/82C08G59/00C08J11/10C08J11/22C08L63/00C08L67/00C08L75/00C08L75/04C08L95/00C10C3/02E01C7/26
    • C10C3/026C08L95/00
    • The invention relates to bituminous compositions containing residues of polymers and in particular sterile car waste, which have previously undergone a hydrolysis and/or alcoholysis treatment prior to their incorporation into the bitumen or asphalt. The treatment is carried out in such a way as to hydrolyze and/or alcoholyze at least 5% by weight of the polyesters and/or polyurethanes initially contained in the polymer residues.During the addition of the pretreated mixture of polymers to the bitumen or asphalt, it is preferable to add a catalyst and/or a reagent assisting the in situ condensation of the acids, alcohols, amines or isocyanates formed during the pretreatment and which react with one another or with certain constituents of the bitumen or asphalt.The process permits a better incorporation of the polymer residues containing a fraction of polyurethane, polyester and/or polyepoxide resins and consequently makes it possible to obtain improved bituminous compositions for use in roads or industry.
    • 本发明涉及含有聚合物残留物,特别是无菌汽车废物的沥青组合物,其在掺入沥青或沥青中之前已经进行了水解和/或醇解处理。 以如下方式进行处理:水解和/或醇解至少5重量%的聚合物残余物中最初包含的聚酯和/或聚氨酯。 在将预处理的聚合物混合物加入到沥青或沥青中时,优选加入催化剂和/或辅助原酸缩合在预处理期间形成的酸,醇,胺或异氰酸酯的试剂,并与其反应 沥青或沥青的另一种或某些成分。 该方法允许更好地包含含有一部分聚氨酯,聚酯和/或聚环氧化物树脂的聚合物残余物,因此可以获得用于道路或工业中的改进的沥青组合物。