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    • 8. 发明申请
    • Polymers and their use in asphalt compositions and asphalt concretes
    • 聚合物及其在沥青组合物和沥青混凝土中的应用
    • US20060074152A1
    • 2006-04-06
    • US11201342
    • 2005-08-10
    • Daniel GravesPeter Boerner
    • Daniel GravesPeter Boerner
    • E01C7/26
    • C08L95/00C08L53/00C08L53/02E01C7/265C08L2666/24
    • A modified asphalt composition comprising a naphthenic asphalt, and a high-vinyl block copolymer is presented. The modified asphalt composition is prepared by combining a naphthenic asphalt and a high-vinyl block copolymer. Further an asphalt concrete is presented, such concrete comprises an asphalt, a functionalized block copolymer, and a siliceous aggregate. A diblock copolymer is presented, such copolymer comprises a vinyl block comprising conjugated vinyl aromatic units, a diene block comprising conjugated diene units and substantially devoid of a tapered block section between the vinyl block and the diene block wherein the diblock copolymer comprises a vinyl content of at least about 20%, and a molecular weight of at least about 50,000.
    • 提出了包含环烷酸沥青和高乙烯基嵌段共聚物的改性沥青组合物。 通过组合环烷沥青和高乙烯基嵌段共聚物来制备改性沥青组合物。 此外,还提出了一种沥青混凝土,这种混凝土包括沥青,官能化嵌段共聚物和硅质骨料。 提出了二嵌段共聚物,这种共聚物包括乙烯基嵌段,其包含共轭乙烯基芳族单元,二烯嵌段包含共轭二烯单元,并且在乙烯基嵌段和二烯嵌段之间基本上没有锥形嵌段部分,其中二嵌段共聚物包含乙烯基含量 至少约20%,分子量至少约50,000。