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    • 1. 发明授权
    • Method for preparation of stable bitumen polymer compositions
    • 稳定沥青聚合物组合物的制备方法
    • US07186765B2
    • 2007-03-06
    • US10888563
    • 2004-07-09
    • James R. ButlerKevin P. KellyPaul Buras
    • James R. ButlerKevin P. KellyPaul Buras
    • C08L95/00
    • C08L95/00C08L2666/02C08L25/00C08L33/00C08L2666/04C08L53/00C08L2666/08
    • The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises heating an asphalt cut in a stirred tank to a temperature sufficient to allow the stirring of the asphalt in the tank. A thermoplastic elastomer or rubber is added to the asphalt while continuing to stir the asphalt. The mixture is stirred at a speed and for a period of time sufficient to increase the distribution of the elastomer into the asphalt. The stirring speed is reduced and the temperature is increased to add crosslinking agents to the tank. Stirring is continued for a period of time sufficient to improve the distribution of the crosslinking agent dispersion in the asphalt. Crosslinking agents include compositions of mercaptobenzothiazole, zinc oxide and elemental sulfur; compositions of mercaptobenzothiazole, zinc oxide, and mixed polythiomorpholine; and compositions of zinc 2-mercaptobenzothiazole and dithiodimorpholine.
    • 本发明提供一种制备沥青和热塑性弹性体组合物的方法。 该方法包括将在搅拌槽中切割的沥青加热到足以允许在罐中搅拌沥青的温度。 在沥青中继续搅拌沥青时,加入热塑性弹性体或橡胶。 将混合物以足以增加弹性体分配到沥青中的速度搅拌一段时间。 搅拌速度降低,温度升高,向罐中加入交联剂。 搅拌持续一段时间,足以改善沥青中交联剂分散体的分布。 交联剂包括巯基苯并噻唑,氧化锌和元素硫的组合物; 巯基苯并噻唑,氧化锌和混合多硫代吗啉的组成; 和2-巯基苯并噻唑锌和二硫代二吗啉的组合物。
    • 3. 发明授权
    • Method for preparation of stable bitumen polymer compositions
    • 稳定沥青聚合物组合物的制备方法
    • US06767939B2
    • 2004-07-27
    • US10140317
    • 2002-05-07
    • James R. ButlerKevin P. KellyPaul Buras
    • James R. ButlerKevin P. KellyPaul Buras
    • C08L9500
    • C08L95/00C08L2666/02C08L25/00C08L33/00C08L2666/04C08L53/00C08L2666/08
    • The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises heating an asphalt cut in a stirred tank to a temperature sufficient to allow the stirring of the asphalt in the tank. A thermoplastic elastomer or rubber is added to the asphalt while continuing to stir the asphalt. The mixture is stirred at a speed and for a period of time sufficient to increase the distribution of the elastomer into the asphalt. The stirring speed is reduced and the temperature is increased to add crosslinking agents to the tank. Stirring is continued for a period of time sufficient to improve the distribution of the crosslinking agent dispersion in the asphalt. Crosslinking agents include compositions of mercaptobenzothiazole, zinc oxide and elemental sulfur; compositions of mercaptobenzothiazole, zinc oxide, and mixed polythiomorpholine; and compositions of zinc 2-mercaptobenzothiazole and dithiodimorpholine.
    • 本发明提供一种制备沥青和热塑性弹性体组合物的方法。 该方法包括将在搅拌槽中切割的沥青加热到足以允许在罐中搅拌沥青的温度。 在沥青中继续搅拌沥青时,加入热塑性弹性体或橡胶。 将混合物以足以增加弹性体分配到沥青中的速度搅拌一段时间。 搅拌速度降低,温度升高,向罐中加入交联剂。 搅拌持续一段时间,足以改善沥青中交联剂分散体的分布。 交联剂包括巯基苯并噻唑,氧化锌和元素硫的组合物; 巯基苯并噻唑,氧化锌和混合多硫代吗啉的组成; 和2-巯基苯并噻唑锌和二硫代二吗啉的组合物。
    • 4. 发明授权
    • Asphalt/aggregate composition of enhanced adhesion
    • 沥青/骨料组合增强附着力
    • US07384468B2
    • 2008-06-10
    • US11010612
    • 2004-12-13
    • James R. ButlerWilliam LeePaul Buras
    • James R. ButlerWilliam LeePaul Buras
    • C08L95/00C09D195/00
    • C08L95/00C08L2666/74
    • An asphalt/aggregate composition having enhanced adhesion characteristics and its preparation. An asphalt base material is heated to a molten state in order to permit mixing of the asphalt with added components. A heavy metal soap is incorporated into the asphalt base material to enhance the adhesion of the asphalt base material with an aggregate component which is mixed with the asphalt base material to provide an asphalt/aggregate blend. The asphalt and aggregate can be blended together in a mixing chamber to provide a fluid asphalt/aggregate concrete which is then dispensed on a substrate surface or the asphalt base material and aggregate components can be separately applied to the substrate surface to provide the ultimate asphalt/aggregate concrete. The heavy metal soap is a C14-C18 heavy metal soap such as zinc stearate. Zinc oxide may also be added to the asphalt base material in an amount which is less than the amount of zinc stearate. The asphalt base material may be polymer-modified asphalt and may incorporate a crumb rubber component to provide a rubber-modified asphalt.
    • 具有增强的粘合特性及其制备的沥青/骨料组合物。 将沥青基材料加热至熔融状态,以使沥青与添加的组分混合。 沥青基材中加入重金属皂以增强沥青基材与沥青基料混合的聚集体组分的粘附性,从而提供沥青/骨料混合物。 沥青和骨料可以在混合室中混合在一起,以提供流体沥青/骨料混凝土,然后将其分配到基材表面上,或者将沥青基体材料和骨料组分分别施加到基材表面以提供最终的沥青/ 骨料混凝土 重金属皂是C 14-14 -C 18重金属皂,例如硬脂酸锌。 也可以将氧化锌以少于硬脂酸锌的量添加到沥青基材中。 沥青基材料可以是聚合物改性沥青,并且可以加入碎屑橡胶组分以提供橡胶改性沥青。
    • 5. 发明授权
    • Method for preparation of stable bitumen polymer compositions
    • 稳定沥青聚合物组合物的制备方法
    • US06441065B1
    • 2002-08-27
    • US09712672
    • 2000-11-14
    • Cyril ChevillardPaul BurasKevin P. KellyJames R. Butler
    • Cyril ChevillardPaul BurasKevin P. KellyJames R. Butler
    • C08L9500
    • C08L95/00C08L2666/04C08L53/00
    • The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises preparing a crosslinking elastomer concentrate that is added to a heated asphalt cut in a stirred tank and then aged to improve SHRP high temperature grading. The crosslinking elastomer concentrate is prepared by adding thermoplastic elastomer and crosslinking agents to a suitable carrier oil, preferably an aromatic oil such as Hydrolene H series. This concentrate is maintained at a temperature that promotes association between the crosslinking agents and the elastomer for a time sufficient for association to substantially complete. In one embodiment, the associating time is in excess of 2 hours up to 24 hours. The asphalt is heated to a temperature sufficient to allow the stirring of the asphalt in the tank. The crosslinking thermoplastic elastomer concentrate is added to the asphalt while continuing to stir the asphalt. The mixture is stirred at a speed and for a period of time sufficient to increase the distribution of the elastomer into the asphalt. Stirring is continued for a period of time sufficient to improve the distribution of the crosslinking thermoplastic elastomer in the asphalt. The composition is then aged as a liquid for 12 to 48 hours to increase the SHRP high temperature grade.
    • 本发明提供一种制备沥青和热塑性弹性体组合物的方法。 该方法包括制备交联弹性体浓缩物,其加入到在搅拌槽中切割的加热沥青中,然后老化以改善SHRP高温分级。 交联弹性体浓缩物通过将热塑性弹性体和交联剂加入到合适的载体油,优选芳香油如氢化氢H系列中来制备。 该浓缩物保持在促进交联剂和弹性体之间缔合的温度足以与基本上完全结合的时间。 在一个实施方案中,缔合时间超过2小时至24小时。 将沥青加热到足以允许在罐中搅拌沥青的温度。 将交联热塑性弹性体浓缩物加入到沥青中,同时继续搅拌沥青。 将混合物以足以增加弹性体分配到沥青中的速度搅拌一段时间。 继续搅拌足以改善交联热塑性弹性体在沥青中的分布的时间。 然后将组合物作为液体陈化12至48小时以增加SHRP高温等级。