Method for preparation of stable bitumen polymer compositions
    1.
    发明授权
    Method for preparation of stable bitumen polymer compositions 失效
    稳定沥青聚合物组合物的制备方法

    公开(公告)号:US07186765B2

    公开(公告)日:2007-03-06

    申请号:US10888563

    申请日:2004-07-09

    IPC分类号: C08L95/00

    摘要: 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.

    摘要翻译: 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。

    Method for preparation of stable bitumen polymer compositions
    2.
    发明授权
    Method for preparation of stable bitumen polymer compositions 失效
    稳定沥青聚合物组合物的制备方法

    公开(公告)号:US06767939B2

    公开(公告)日:2004-07-27

    申请号:US10140317

    申请日:2002-05-07

    IPC分类号: C08L9500

    摘要: 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.

    摘要翻译: 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。

    Method for preparation of stable bitumen polymer compositions
    3.
    发明授权
    Method for preparation of stable bitumen polymer compositions 失效
    稳定沥青聚合物组合物的制备方法

    公开(公告)号:US06441065B1

    公开(公告)日:2002-08-27

    申请号:US09712672

    申请日:2000-11-14

    IPC分类号: C08L9500

    摘要: 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.

    摘要翻译: 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。

    Alkylation Process
    5.
    发明申请
    Alkylation Process 审中-公开
    烷基化方法

    公开(公告)号:US20080242906A1

    公开(公告)日:2008-10-02

    申请号:US12119171

    申请日:2008-05-12

    IPC分类号: C07C2/58

    摘要: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase in a reaction zone containing a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. A polyethylbenzene is supplied into the reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 20-500. The reaction zone is operated at temperature and pressure conditions in which benzene is in the supercritical phase to cause ethylation of the benzene and the transalkylation of polyethylbenzene and benzene in the presence of the zeolite beta catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated byproducts of no more than 60 wt. % of the ethylbenzene. The alkylation reaction zone is operated under conditions providing a composite byproduct yield of propyl benzene and butyl benzene relative to ethylbenzene, which is no more than one half of the corresponding yield byproduct for zeolite beta promoted with lanthanum. The production of ethylbenzene in the critical phase alkylation reaction zone is attended by recycle of a polyalkylated aromatic component of the reaction product back to the reaction zone.

    摘要翻译: 在包含铈促进沸石β的分子筛芳族烷基化催化剂的反应区中通过苯在临界阶段乙苯化生产乙苯的方法。 将聚乙苯供入反应区并与二氧化硅/氧化铝摩尔比在20-500范围内的铈促进沸石β接触。 反应区在苯处于超临界阶段的温度和压力条件下进行,以在沸石β催化剂存在下引起苯的乙基化和多乙基苯和苯的烷基转移。 生产含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 烷基化反应区在相对于乙苯提供丙基苯和丁基苯的复合副产物产率的条件下操作,其不超过用镧促进的沸石β的相应产率副产物的一半。 通过将反应产物的多烷基化芳族组分再循环回到反应区,可以在临界相烷基化反应区中生产乙苯。

    Dispersing agent and method for the delivery of cross-linking agent to polymer modified asphalt compositions
    7.
    发明授权
    Dispersing agent and method for the delivery of cross-linking agent to polymer modified asphalt compositions 失效
    用于将交联剂递送到聚合物改性沥青组合物的分散剂和方法

    公开(公告)号:US06927245B2

    公开(公告)日:2005-08-09

    申请号:US10454001

    申请日:2003-06-04

    IPC分类号: C08J3/00 C08L95/00

    摘要: The present invention provides a dispersing agent that facilitates the delivery of a cross-linking agent to polymer modified asphalt. The present invention further includes a composition comprising a liquid hydrocarbon, the dispersant and cross-linking agent, and methods of preparing the composition and of preparing cross-linked polymer modified asphalt composition.

    摘要翻译: 本发明提供一种促进交联剂向聚合物改性沥青输送的分散剂。 本发明还包括包含液体烃,分散剂和交联剂的组合物,以及制备该组合物和制备交联聚合物改性沥青组合物的方法。

    Critical phase alkylation process
    8.
    发明授权
    Critical phase alkylation process 失效
    临界相烷基化方法

    公开(公告)号:US07419929B2

    公开(公告)日:2008-09-02

    申请号:US11195003

    申请日:2005-08-02

    IPC分类号: B01J20/34

    摘要: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. An aromatic feedstock having a benzene content of at least 90 wt. % is supplied into a reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 50-150 and a cerium-aluminum ratio of 0.5-1.5. Ethylene is supplied to the alkylation reaction zone in an amount to provide a benzene/ethylene mole ratio of 1-15. The reaction zone is operated at temperature and pressure conditions in which benzene is in the super critical phase to cause ethylation of the benzene in the presence of the cerium zeolite beta alkylation catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated by-products of no more than 60 wt. % of the ethylbenzene. The critical phase alkylation reaction may be followed by the transalkylation of a polyalkylated aromatic component.

    摘要翻译: 通过苯在临界相中的乙基化生成乙苯的方法,该分子筛芳族烷基化催化剂包含铈促进沸石β。 苯含量至少为90wt。%的芳族原料。 将%供给到反应区并与二氧化硅/氧化铝摩尔比在50-150范围内并且铈 - 铝比为0.5-1.5的铈促进沸石β接触。 将乙烯以提供苯/乙烯摩尔比为1-15的量供入烷基化反应区。 反应区在苯处于超临界阶段的温度和压力条件下运行,以在铈沸石β烷基化催化剂存在下引起苯的乙基化。 制备含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 临界相烷基化反应之后可以是多烷基化芳族组分的烷基转移。

    Critical phase alkylation and transalkylation process in the presence of a beta zeolite
    9.
    发明授权
    Critical phase alkylation and transalkylation process in the presence of a beta zeolite 失效
    在β沸石存在下的临界相烷基化和烷基转移方法

    公开(公告)号:US07371911B2

    公开(公告)日:2008-05-13

    申请号:US11066951

    申请日:2005-02-25

    IPC分类号: C07C2/66

    摘要: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase in a reaction zone containing a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. A polyethylbenzene is supplied into the reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 20-500. The reaction zone is operated at temperature and pressure conditions in which benzene is in the supercritical phase to cause ethylation of the benzene and the transalkylation of polyethylbenzene and benzene in the presence of the zeolite beta catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated byproducts of no more than 60 wt. % of the ethylbenzene. The alkylation reaction zone is operated under conditions providing a composite byproduct yield of propyl benzene and butyl benzene relative to ethylbenzene, which is no more than one half of the corresponding yield byproduct for zeolite beta promoted with lanthanum. The production of ethylbenzene in the critical phase alkylation reaction zone is attended by recycle of a polyalkylated aromatic component of the reaction product back to the reaction zone.

    摘要翻译: 在包含铈促进沸石β的分子筛芳族烷基化催化剂的反应区中通过苯在临界阶段乙苯化生产乙苯的方法。 将聚乙苯供入反应区并与二氧化硅/氧化铝摩尔比在20-500范围内的铈促进沸石β接触。 反应区在苯处于超临界阶段的温度和压力条件下进行,以在沸石β催化剂存在下引起苯的乙基化和多乙基苯和苯的烷基转移。 生产含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 烷基化反应区在相对于乙苯提供丙基苯和丁基苯的复合副产物产率的条件下操作,其不超过用镧促进的沸石β的相应产率副产物的一半。 通过将反应产物的多烷基化芳族组分再循环回到反应区,可以在临界相烷基化反应区中生产乙苯。

    Method for preparing asphalt and polymer compositions incorporating multi-component crosslinking agents
    10.
    发明授权
    Method for preparing asphalt and polymer compositions incorporating multi-component crosslinking agents 失效
    制备掺入多组分交联剂的沥青和聚合物组合物的方法

    公开(公告)号:US06407152B1

    公开(公告)日:2002-06-18

    申请号:US09723951

    申请日:2000-11-28

    IPC分类号: C08L9500

    摘要: A process for the preparation of an asphalt and polymer composition in which a minor amount of polymer component is subjected to a crosslinking. An asphalt base material is heated in a mixing chamber at a temperature sufficient to melt the asphalt and allow stirring of the asphalt within the chamber. A thermoplastic elastomer is added to the chamber in an amount not greater than 12 wt. %. While the asphalt elastomer formulation is stirred, a crosslinking agent is added in an amount effective to crosslink the thermoplastic elastomer. The crosslinking agent formulation comprises at least two components. One component is a thiopolymer incorporating organic sulfur prepared by the reaction of 6-tertiary butyl cresol and sulfur dichloride which reacts to produce a reaction product comprising 4,4-thiobis(6-tertiary butyl-m-cresol) and the thiopolymer, followed by subsequent separation of the 4,4-thiobis(6-tertiary-butyl-m-cresol) from the thiopolymer product. The second crosslinking component comprises a source of sulfur to crosslink the thermoplastic elastomer. The second crosslinking component may be selected from the group consisting of elemental sulfur, polythiomorpholine, specifically dithiodimorpholine, zinc-2-mercaptothiazole and mixtures thereof

    摘要翻译: 一种沥青和聚合物组合物的制备方法,其中少量的聚合物组分进行交联。 沥青基材料在混合室中以足以熔化沥青的温度加热并允许在室内搅拌沥青。 将热塑性弹性体以不大于12重量%的量添加到室中。 %。 在搅拌沥青弹性体配方的同时,加入有效交联热塑性弹性体的量的交联剂。 交联剂制剂包含至少两种组分。 一种组分是含有通过6-叔丁基甲酚和二氯化硫反应制备的有机硫的硫代聚合物,其反应生成包含4,4-二硫代(6-叔丁基间甲酚)和硫代聚合物的反应产物, 随后从硫代聚合物产物中分离出4,4-二硫代双(6-叔丁基间甲酚)。 第二交联组分包含硫源以交联热塑性弹性体。 第二交联组分可以选自元素硫,多硫代吗啉,特别是二硫代二吗啉,锌-2-巯基噻唑及其混合物