Bitumen/rubber compositions crosslinked with polythiomorpholines, polysulfides and/or mercaptobenzimidazole
    11.
    发明授权
    Bitumen/rubber compositions crosslinked with polythiomorpholines, polysulfides and/or mercaptobenzimidazole 失效
    用多硫代吗啉,多硫化物和/或巯基苯并咪唑交联的沥青/橡胶组合物

    公开(公告)号:US07608650B2

    公开(公告)日:2009-10-27

    申请号:US12367303

    申请日:2009-02-06

    CPC classification number: E01C7/18 C08L9/06 C08L81/04 C08L95/00 C08L2666/08

    Abstract: Asphalt and elastomeric polymer compositions crosslinked with mixed polythiomorpholines or at least one alkyl polysulfide can give polymer modified asphalts (PMAs) with improved properties and/or reduced H2S evolution. When at least one alkyl polysulfide is used to completely or partially replace conventional crosslinkers such as S or MBT, mercaptobenzimidazole (MBI) may be optionally used as a co-crosslinker. The use of mixed polythiomorpholines as crosslinkers provide PMAs with better low temperature profiles (BBR m-values). The use of at least one alkyl polysulfide crosslinker gives PMAs with improved PAV-aged DSR results, and reduced H2S evolution. The use of at least one alkyl polysulfide crosslinker together with MBI may give PMAs with improved PAV DSR Fail Temperatures.

    Abstract translation: 用混合多硫代吗啉或至少一种烷基多硫化物交联的沥青和弹性聚合物组合物可以得到具有改进性能和/或降低的H 2 S进化的聚合物改性沥青(PMA)。 当使用至少一种烷基多硫化物来完全或部分替代常规交联剂如S或MBT时,巯基苯并咪唑(MBI)可以任选地用作共交联剂。 使用混合的聚硫代吗啉作为交联剂为PMA提供了更好的低温谱(BBR m值)。 使用至少一种烷基多硫化物交联剂使PMA具有改进的PAV老化的DSR结果,并降低了H2S进化。 使用至少一种烷基多硫化物交联剂与MBI一起可以使PMA具有改进的PAV DSR失败温度。

    Performance Grade Asphalt Composition and Method of Production Thereof
    12.
    发明申请
    Performance Grade Asphalt Composition and Method of Production Thereof 审中-公开
    性能等级沥青组合物及其生产方法

    公开(公告)号:US20090012214A1

    公开(公告)日:2009-01-08

    申请号:US12163578

    申请日:2008-06-27

    CPC classification number: C08L95/00 C09D195/00 C08L2666/72 C08L2666/02

    Abstract: An asphalt material having improved paving characteristics and processes for its preparation. An asphalt base material is heated in a mixing chamber to a temperature sufficient to melt the asphalt so that it can be stirred. A water-insoluble heavy metal soap is incorporated into the chamber in an amount effective to reduce the PAV-DSR temperature of the asphalt base material by an incremental amount of at least 1° C. Thereafter, the asphalt material is recovered from the mixing chamber to provide an asphalt product containing the heavy metal soap which exhibits a PAV-DSR temperature which is less than the PAV-DSR temperature for the corresponding base material without the addition of the heavy metal soap. The water-insoluble soap is a C14-C18 heavy metal soap such as a C16-C18 zinc- or calcium-based soap including zinc stearate, zinc oleate and zinc palmitate. The heavy metal soap is added to the mixing chamber in an amount within the range of 0.05-3.0 wt. % of the amount of asphalt based material in the mixing chamber. A thermoplastic polymer may be added to the asphalt based material to provide a polymer-modified asphalt blend. An asphalt paving composition comprising an asphalt base material and a water-insoluble heavy metal soap in an amount to provide a PAV-DSR temperature lower than the PAV-DSR temperature of the corresponding asphalt material without the addition of the heavy metal soaps.

    Abstract translation: 具有改进的铺路特性的沥青材料及其制备方法。 将沥青基材料在混合室中加热到足以熔化沥青的温度,使其能够被搅拌。 将不溶于水的重金属皂以有效地降低沥青基材的PAV-DSR温度至少1℃的量加入室中。此后,将沥青材料从混合室中回收 以提供含有重金属皂的沥青产品,其显示PAV-DSR温度低于相应基础材料的PAV-DSR温度而不添加重金属皂。 水不溶性皂是C14-C18重金属皂,例如C16-C18锌或钙基皂,包括硬脂酸锌,油酸锌和棕榈酸锌。 将重金属皂以0.05-3.0重量%的量加入到混合室中。 在混合室中沥青基材料的量的百分比。 可以将热塑性聚合物加入到沥青基材料中以提供聚合物改性沥青混合物。 一种沥青铺路组合物,其包含沥青基础材料和不溶于水的重金属皂,其量使得PAV-DSR温度低于相应沥青材料的PAV-DSR温度,而不添加重金属皂。

    Petrochemical processes
    14.
    发明申请
    Petrochemical processes 审中-公开
    石化工艺

    公开(公告)号:US20070251861A1

    公开(公告)日:2007-11-01

    申请号:US11411706

    申请日:2006-04-26

    Abstract: Petrochemical processes, including reforming processes are described herein. The reforming processes generally include introducing an input stream to a reforming unit having a reforming catalyst disposed therein, wherein the input stream includes a naphtha having an N+2A value of from about 65 to about 85 and contacting the input stream with the reforming catalyst and hydrogen to form an output stream.

    Abstract translation: 本文描述了石油化学方法,包括重整方法。 重整过程通常包括将输入流引入到其中设置有重整催化剂的重整单元,其中输入流包括具有约65至约85的N + 2A值的石脑油并使输入流与重整催化剂接触, 氢气以形成输出流。

    Reinforced gas valve stem
    15.
    发明申请
    Reinforced gas valve stem 审中-公开
    加强气阀杆

    公开(公告)号:US20070125975A1

    公开(公告)日:2007-06-07

    申请号:US11294717

    申请日:2005-12-06

    CPC classification number: F16K27/062 F16K5/0214

    Abstract: A reinforced gas valve assembly having a valve stem secured to a main valve body adjacent a valve member. The valve includes a retaining cover plate configured to secure the valve stem to the valve body and a reinforcement member coupled to both the valve stem and the retaining cover plate for restricting radial movement of the valve stem.

    Abstract translation: 一种加强型气阀组件,其具有固定在与阀构件相邻的主阀体上的阀杆。 阀包括构造成将阀杆固定到阀体的保持盖板和连接到阀杆和保持盖板两者的加强构件,用于限制阀杆的径向移动。

    Method and apparatus for adaptive polling in a wireless communication device
    16.
    发明申请
    Method and apparatus for adaptive polling in a wireless communication device 审中-公开
    用于无线通信设备中的自适应轮询的方法和装置

    公开(公告)号:US20060268812A1

    公开(公告)日:2006-11-30

    申请号:US11141514

    申请日:2005-05-31

    CPC classification number: H04W28/18 H04W74/06

    Abstract: A wireless communication unit (120) polls (200) a radio access point (110) at a certain frequency. The wireless communication unit (120) then determines (210) whether packets are received in response to the polling and determines (220) the percentage of polls resulting in receipt of packets. The wireless communication unit (120) then adjusts (230) the polling frequency to change the number of polls which result in the receipt of packets. Optionally, the wireless communication unit (120) repolls (240) the radio access point (110) when a packet in not received. Then, the wireless communication unit (120) plays (250) the packet at a certain time. Alternatively, the wireless communication unit (120) receives (310) packets without polling and determines (220) a radion access point frequency at which packets arrive at the radio access point (110). The polling frequency is then set (330) to approximately the radio access point frequency.

    Abstract translation: 无线通信单元(120)以特定频率轮询(200)无线电接入点(110)。 然后,无线通信单元(120)确定(210)响应于轮询是否接收到分组,并且确定(220)导致收到分组的轮询的百分比。 然后,无线通信单元(120)调整(230)轮询频率以改变导致分组的接收的轮询的数量。 可选地,当未接收到分组时,无线通信单元(120)对无线接入点(110)进行补偿(240)。 然后,无线通信单元(120)在一定时间播放(250)分组。 或者,无线通信单元(120)在不轮询的情况下接收(310)分组,并且确定(220)分组到达无线电接入点(110)的无线电接入点频率。 然后将轮询频率设置为大约无线电接入点频率(330)。

    Toluene disproportionation process utilizing mild sulfiding during startup

    公开(公告)号:US20060149106A1

    公开(公告)日:2006-07-06

    申请号:US11030707

    申请日:2005-01-06

    Abstract: A process for the disproportionation of toluene over a nickel-modified mordenite catalyst which has been pretreated with mild sulfiding procedure. The sulfur dose is employed in a minor amount relative to the nickel content of the catalyst. The modified mordenite catalyst is contacted with a sulfur-containing compound such as hydrogen sulfide or dimethyldisulfide (DMDS) under pretreatment conditions involving a temperature of at least 100° C. The sulfur-containing compound is employed in a relatively small amount to passivate only a minor portion of the active nickel sites. A toluene-containing feedstock is brought into contact with the pretreated catalyst under conditions effective for the disproportionation of toluene and a disproportionation product is removed from contact with the catalyst. The mordenite catalyst contains nickel in an amount within the range of 0.1-2 wt. %. The catalyst may contain another metal such as palladium or platinum, or a lanthanide series metal such as lanthanum or cerium. Pretreatment of the catalyst may be carried out by flowing a fluid pretreatment stream having a sulfur component into contact with the catalyst. The pretreatment stream comprises hydrogen sulfide or a thio compound which is converted to hydrogen sulfide under the pretreatment conditions.

    Performance grade asphalt composition and method of production thereof
    18.
    发明申请
    Performance grade asphalt composition and method of production thereof 审中-公开
    性能等级沥青组合物及其生产方法

    公开(公告)号:US20060122292A1

    公开(公告)日:2006-06-08

    申请号:US11005525

    申请日:2004-12-06

    CPC classification number: C08L95/00 C09D195/00 C08L2666/72 C08L2666/02

    Abstract: An asphalt material having improved paving characteristics and processes for its preparation. An asphalt base material is heated in a mixing chamber to a temperature sufficient to melt the asphalt so that it can be stirred. A water-insoluble heavy metal soap is incorporated into the chamber in an amount effective to reduce the PAV-DSR temperature of the asphalt base material by an incremental amount of at least 1° C. Thereafter, the asphalt material is recovered from the mixing chamber to provide an asphalt product containing the heavy metal soap which exhibits a PAV-DSR temperature which is less than the PAV-DSR temperature for the corresponding base material without the addition of the heavy metal soap. The water-insoluble soap is a C14-C18 heavy metal soap such as a C16-C18 zinc- or calcium-based soap including zinc stearate, zinc oleate and zinc palmitate. The heavy metal soap is added to the mixing chamber in an amount within the range of 0.05-3.0 wt. % of the amount of asphalt based material in the mixing chamber. A thermoplastic polymer may be added to the asphalt based material to provide a polymer-modified asphalt blend. An asphalt paving composition comprising an asphalt base material and a water-insoluble heavy metal soap in an amount to provide a PAV-DSR temperature lower than the PAV-DSR temperature of the corresponding asphalt material without the addition of the heavy metal soaps.

    Abstract translation: 具有改进的铺路特性的沥青材料及其制备方法。 将沥青基材料在混合室中加热到足以熔化沥青的温度,使其能够被搅拌。 将不溶于水的重金属皂以有效地降低沥青基材的PAV-DSR温度至少1℃的量加入室中。此后,将沥青材料从混合室中回收 以提供含有重金属皂的沥青产品,其表现出PAV-DSR温度低于相应基础材料的PAV-DSR温度,而不添加重金属皂。 水不溶性皂是C 14 -C 18重金属皂,例如C 16 -C 18 C 12 >锌或钙基皂,包括硬脂酸锌,油酸锌和棕榈酸锌。 将重金属皂以0.05-3.0重量%的量加入到混合室中。 在混合室中沥青基材料的量的百分比。 可以将热塑性聚合物加入到沥青基材料中以提供聚合物改性沥青混合物。 一种沥青铺路组合物,其包含沥青基础材料和不溶于水的重金属皂,其量使得PAV-DSR温度低于相应沥青材料的PAV-DSR温度,而不添加重金属皂。

    Ground penetrating radar stencil and system for using the same

    公开(公告)号:US11789178B2

    公开(公告)日:2023-10-17

    申请号:US17121676

    申请日:2020-12-14

    Applicant: James Butler

    Inventor: James Butler

    CPC classification number: G01V15/00 B43L13/208 G01S13/885

    Abstract: A ground penetrating radar stencil and system for using the same is provided. The stencils are reusable. The stencils are foldable, allowing for storing and transportation. A first data collection grid stencil is used to mark a grid followed by alternative target marking stencils used to mark utility line and structural support lines. Indelible stencil paint/ink is applied on and through the stencils onto the concrete surfaces to provide for a permanent, standardized and consistent marking of critical embedded infrastructure. The system allows for a uniform collecting and recording of the scanning data results for future reference and work in the same area.

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