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公开(公告)号：US5549744A
公开(公告)日：1996-08-27
申请号：US525898
申请日：1995-09-08
IPC分类号： C08L95/00 , E01C7/26 , C09D195/00
摘要： The present invention provides for a method of making storage stable road paving binders by blending a minor amount of a polymer having at least one diene monomer with a major amount of asphalt containing at least 0.3% by weight of total nitrogen at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend using not more than 250 meq of a sulfonating agent per 100 g of asphalt-polymer blend to introduce the corresponding acid functionality into the blend; maintaining the sulfonated asphalt-polymer blend at a sufficiently elevated temperature and stripping the sulfonated blend with sufficient chemically unreactive gas to remove a major fraction of the acid functionality introduced by sulfonation. The invention also provides for the compositions made by the process. These are useful as binders in road paving applications.
摘要翻译： 本发明提供一种通过将少量具有至少一种二烯单体的聚合物与主要含量为总氮至少0.3重量％的沥青在升高的温度下混合来制备储存稳定的铺路粘合剂的方法，使得 组分充分流体混合; 使用每100g沥青聚合物共混物不超过250meq的磺化剂处理沥青聚合物共混物以将相应的酸官能团引入到共混物中; 在充分升高的温度下保持磺化沥青聚合物共混物，并用足够的化学反应性气体汽提磺化的共混物，以除去通过磺化引入的大部分酸性官能团。 本发明还提供了通过该方法制备的组合物。 这些作为道路铺路应用中的粘合剂是有用的。
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公开(公告)号：US5637141A
公开(公告)日：1997-06-10
申请号：US664610
申请日：1996-06-18
申请人： Olga Puzic , Larry J. Evers , Kenneth E. Williamson , Martin L. Gorbaty , Nicholas C. Nahas , Alain L. Lenack
发明人： Olga Puzic , Larry J. Evers , Kenneth E. Williamson , Martin L. Gorbaty , Nicholas C. Nahas , Alain L. Lenack
IPC分类号： C09D195/00 , C08L95/00 , E01C7/26
摘要： The present invention provides a method of making storage-stable road paving binders by blending a minor amount of an unsaturated polymer (e.g., having at least one diene monomer) with a major amount of asphalt at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend with a sulfonating agent; and stripping the treated asphalt-polymer blend at an elevated temperature with sufficient stripping gas to remove strippable sulfur moieties and to stabilize the resulting stripped, treated blend. The invention also provides asphaltic compositions made by the method. The asphaltic compositions are useful as binders in road paving applications.
摘要翻译： 本发明提供一种通过在较高温度下将少量不饱和聚合物（例如具有至少一个二烯单体）与主要量的沥青混合来制备储存稳定的铺路粘合剂的方法，使得组分充分流体 混合 用磺化剂处理沥青聚合物共混物; 并在升高的温度下用足够的汽提汽提汽提处理的沥青聚合物共混物，以除去可剥离的硫部分，并稳定所得的汽提处理过的混合物。 本发明还提供了通过该方法制备的沥青组合物。 沥青组合物可用作道路铺路应用中的粘合剂。
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