Paving or binder compositions containing asphalt reacted with diisocyanate
    4.
    发明授权
    Paving or binder compositions containing asphalt reacted with diisocyanate 失效
    包含与二异氰酸酯反应的沥青混合物或粘合剂组合物

    公开(公告)号:US3650791A

    公开(公告)日:1972-03-21

    申请号:US3650791D

    申请日:1967-04-13

    发明人: FAUBER EUGENE M

    摘要: Compositions suitable for use as paving or as a binder for paving materials and possessing improved ductility, viscosity and resistance to oxidation are obtained by reacting a minor amount of a diisocyanate with asphalt. The preferred diisocyanate is toluene diisocyanate. This composition may be blended with urethane in situ or the urethane-forming components, e.g., polyhydroxy-terminated polydiene and hydrocarbon diisocyanate may be added separately. Blending the asphalt-diisocyanate composition with urethane-forming materials has been found to improve viscosity and homogeneity and decrease the amount of carbon tetrachloride insolubles.

    摘要翻译: 通过使少量的二异氰酸酯与沥青反应,可以得到适用于铺路材料或作为铺路材料的粘合剂并具有改善的延展性,粘度和抗氧化性的组合物。 优选的二异氰酸酯是甲苯二异氰酸酯。 该组合物可以与原位的氨基甲酸酯混合,或分别加入聚氨酯形成组分,例如多羟基封端的聚二烯和烃二异氰酸酯。 已经发现将沥青二异氰酸酯组合物与氨基甲酸酯形成材料混合以改善粘度和均匀性并减少四氯化碳不溶物的量。