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    • 71. 发明授权
    • Method for preparing asphalt and polymer compositions incorporating multi-component crosslinking agents
    • 制备掺入多组分交联剂的沥青和聚合物组合物的方法
    • US06407152B1
    • 2002-06-18
    • US09723951
    • 2000-11-28
    • James R. ButlerKevin P. Kelly
    • James R. ButlerKevin P. Kelly
    • C08L9500
    • C08K5/37C08J3/243C08L95/00C08L2666/08
    • 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
    • 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
    • 72. 发明授权
    • Stable bitumen polymer compositions
    • 稳定的沥青聚合物组合物
    • US06310122B1
    • 2001-10-30
    • US09389960
    • 1999-09-03
    • James R. ButlerKevin P. Kelly
    • James R. ButlerKevin P. Kelly
    • C08L9500
    • C08L95/00C08L2666/04C08L53/00
    • 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 an oil dispersion or aqueous emulsion of 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.
    • 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,向罐中加入交联剂的油分散体或水性乳液。 搅拌持续一段时间,足以改善沥青中交联剂分散体的分布。
    • 73. 发明授权
    • Alkylation process with reduced heavy residue
    • 烷基化过程减少重残渣
    • US6137020A
    • 2000-10-24
    • US127025
    • 1998-07-31
    • James R. ButlerMark E. Kuchenmeister
    • James R. ButlerMark E. Kuchenmeister
    • C07C2/66C07C15/073C07C15/067
    • C07C15/073C07C2/66C07C2529/035
    • A process for reducing the amount of undesirable byproducts, for example multi-ring compounds known as heavy residue in a process for the alkylation of an aromatic hydrocarbon with an olefin using a silicalite catalyst is disclosed. The process comprises supplying a feedstock containing benzene to a reaction zone with an alkylating agent in a molar ratio of benzene to alkylating agent of from about 2:1 to about 20:1 and into contact with an aluminosilicate alkylation catalyst having an average crystallite size of less than about 0.50 .mu.m and wherein the size of about 90% of the crystallites is less than 0.70 .mu.m. The catalyst is characterized by an Si/Al atomic ratio in the range from between 50 and 150 and a maximum pore size in the range from about 1000 to 1800 .ANG.. The catalyst has a sodium content of less than about 50 ppm and the reaction is carried out under conversion conditions including a temperature of from about 250.degree. C. to about 550.degree. C. and a pressure of from about 200 psi to about 500 psi.
    • 公开了一种减少不需要的副产物的方法,例如在使用硅沸石催化剂的烯烃烷基化芳族烃的方法中称为重残基的多环化合物。 该方法包括将含苯的原料与苯与烷基化剂的摩尔比为约2:1至约20:1的烷基化剂供应到反应区,并与平均微晶尺寸为的硅铝酸盐烷基化催化剂接触 小于约0.50μm,其中约90%的微晶的尺寸小于0.70μm。 催化剂的特征在于Si / Al原子比在50至150之间,最大孔径在约1000至1800安培的范围内。 催化剂的钠含量小于约50ppm,反应在包括温度为约250℃至约550℃,压力为约200psi至约500psi的转化条件下进行。
    • 75. 发明授权
    • Method for controlling an output stage of a bipolar micro-power
rail-to-rail amplifier
    • 用于控制双极型微功率轨至轨放大器的输出级的方法
    • US5521553A
    • 1996-05-28
    • US468527
    • 1995-06-06
    • James R. Butler
    • James R. Butler
    • H03F3/30H03F3/45
    • H03F3/45121H03F3/3067H03F2203/45668H03F2203/45722
    • A bipolar micro-power rail-to-rail operational amplifier has a low complexity output stage that provides a high ratio of load current to no load idle current. The output stage includes first and second output transistors of opposite conductivities whose current circuits are connected in series at the output terminal between high and low voltage supplies. A control transistor responds to the drive voltage at its base by modulating the base-emitter voltages of the first output transistor and a gain transistor in opposite directions to modulate their respective output and gain currents. A regenerative current source supplies current to the gain transistor by returning the gain current in a regenerative feedback loop to its emitter so that the current source idles at a low gain current but is capable of supplying much higher gain currents. A voltage element responds to the gain current by applying a control voltage to the base of the second output transistor so that the output transistors' output currents are unbalanced thereby generating an output current at the output terminal.
    • 双极微功率轨至轨运算放大器具有低复杂度的输出级,提供高负载电流与无负载空闲电流的比率。 输出级包括具有相反电导率的第一和第二输出晶体管,其电流电路在高电压和低电压电源之间的输出端串联连接。 控制晶体管通过相反方向调制第一输出晶体管和增益晶体管的基极 - 发射极电压来响应其基极的驱动电压,以调制其相应的输出和增益电流。 再生电流源通过将再生反馈回路中的增益电流返回到其发射极来向增益晶体管提供电流,使得电流源以低增益电流空闲,但能够提供高得多的增益电流。 电压元件通过向第二输出晶体管的基极施加控制电压来响应于增益电流,使得输出晶体管的输出电流不平衡,从而在输出端产生输出电流。
    • 76. 发明授权
    • Embolus supply system and method
    • 栓塞供应系统和方法
    • US5133731A
    • 1992-07-28
    • US612107
    • 1990-11-09
    • James R. ButlerWilliam C. McCoyArnold Miller
    • James R. ButlerWilliam C. McCoyArnold Miller
    • A61B17/12
    • A61B17/12022A61B17/1214A61B2017/1205
    • An apparatus and method is provided for dispensing coil emboli one at a time in a controlled and reliable manner during surgery to embolize several blood vessels or the like in a body. The apparatus includes a magazine that is movable within a dispenser housing to position each of the embolus cartridges contained in the magazine one at a time at a dispensing station on command. A stream of pressurized fluid is injected or a guide wire is inserted into the embolus cartridge held in the dispensing station to dislodge an embolus contained therein and discharge it into an embolus-delivery catheter coupled to the dispenser housing. Afterwards, the magazine is moved within the dispenser housing to remove the just-emptied embolus cartridge from the dispensing station and load a fresh embolus cartridge into the dispensing station.
    • 提供了一种装置和方法,用于在手术期间以可控和可靠的方式一次一个地分配线栓,以将几个血管等栓塞在体内。 该装置包括可在分配器壳体内移动的盒子,以便在命令的分配站处一次一个地将容纳在盒子中的每个栓塞盒定位。 注射加压流体流,或将引导线插入到保持在分配站中的栓塞盒中,以移除其中容纳的栓塞并将其排出到与分配器壳体相连的栓塞输送导管中。 之后,盒子在分配器壳体内移动,以便从分配站移除刚刚清空的栓塞盒,并将新鲜的栓塞盒装入分配站。
    • 78. 发明授权
    • Input stage using junction field effect transistors for biasing
    • 输入级采用结型场效应晶体管进行偏置
    • US4316102A
    • 1982-02-16
    • US75435
    • 1979-09-13
    • James R. Butler
    • James R. Butler
    • H03F3/45H03K17/00H03K17/687
    • H03F3/45381
    • In a bias circuit including at least a pair of bipolar transistors interconnected to function as active loads, two junction field effect transistors are interconnected such that the source of one transistor is connected to the emitter of the first of the pair of bipolar transistors and the source of the second junction field effect transistor is connected to the emitter of the second of said bipolar transistors, and the gate electrodes of the first and second junction field effect transistors are electrically connected to each other and to the drain electrodes of both the first and second junction field effect transistors. Alternatively, the drain electrodes of the first and second junction field effect transistors are connected to a common bus and the gate electrodes are connected to a low impedance node.
    • 在包括互连以用作有源负载的至少一对双极晶体管的偏置电路中,两个结场效应晶体管互连,使得一个晶体管的源极连接到该对双极晶体管中的第一对的发射极和源极 所述第二结型场效应晶体管的所述第二和第二结场效应晶体管的栅电极连接到所述第二和第二结型场效应晶体管的第二结型场效应晶体管的发射极,并且所述第一和第二结型场效应晶体管的栅电极彼此电连接, 结场效应晶体管。 或者,第一和第二结场效应晶体管的漏电极连接到公共总线,并且栅电极连接到低阻抗节点。