Processes for producing .alpha.-halo ketones, .alpha.-halohydrins and
epoxides
    71.
    发明授权
    Processes for producing .alpha.-halo ketones, .alpha.-halohydrins and epoxides 失效
    制备α-卤代酮,α-卤代醇和环氧化物的方法

    公开(公告)号:US5929284A

    公开(公告)日:1999-07-27

    申请号:US722102

    申请日:1996-12-18

    摘要: Processes for efficiently producing .alpha.-halo ketones, .alpha.-halohydrins and epoxides on an industrial scale. The prosesses include one for producing an .alpha.-halo ketone of general formula (3) by decarboxylating a product of reaction between a carboxilic acid derivative of general formula (1) and a metal enolate prepared from an .alpha.-haloacetic acid of general formula (2) or an acceptable salt thereof, one for producing an by reducing the .alpha.-halo ketone (3), and one for producing an epoxide (13) by treating the .alpha.-halohydrin (11) with a base to effect ring closure. The above prosesses are particularly suitable for producing optically active .alpha.-halo ketones, .alpha.-halohydrins and epoxides from the corresponding .alpha.-amino acid derivatives. ##STR1##

    摘要翻译: PCT No.PCT / JP96 / 00212 Sec。 371日期:1996年12月18日 102(e)1996年12月18日日期PCT 1996年2月2日PCT PCT。 第WO96 / 23756号公报 日期1996年8月8日工业规模高效生产α-卤代酮,α-卤代醇和环氧化物的方法。 前药包括通过使通式(1)的羧酸衍生物与由通式(2)的α-卤代乙酸制备的金属烯醇化物脱羧的方法来制备通式(3)的α-卤代酮, )或其可接受的盐,其中通过用碱来还原α-卤代酮(3)和通过用碱处理α-卤代醇(11)来制备环氧化物(13)来制备,以实现闭环。 上述产品特别适用于从相应的α-氨基酸衍生物制备光学活性的α-卤代酮,α-卤代醇和环氧化物。

    Battery terminal with core wire end cover
    72.
    发明授权
    Battery terminal with core wire end cover 失效
    带芯线端盖的电池端子

    公开(公告)号:US5893781A

    公开(公告)日:1999-04-13

    申请号:US843386

    申请日:1997-04-15

    CPC分类号: H01R11/284 Y10S439/948

    摘要: A fastening member 30 of a battery terminal 10 has a core wire covering member 32 formed by bending a pair of protecting members 32a which extend from the root portion of a wire barrel 31. The core wire covering member 32 is between the connecting portion 20 and the usual wire barrel portion 31, and is approximately rectangular when seen in cross-section. A clamp bolt 50 and nut 51 are tightened by means of a spanner or the like, thereby attaching the battery terminal 10 to a battery post P. The covering member 32 ensures that the end of the core wire or loose strands of the core wire do not interfere with the tightening operation or become caught on the operator's hand or on a tool. The wire covering members 33, 34 may include inspection apertures 33c, 34b.

    摘要翻译: 电池端子10的紧固构件30具有通过弯曲从线筒31的根部延伸的一对保护构件32a而形成的芯线覆盖构件32.芯线覆盖构件32位于连接部20和 通常的线筒部分31,并且在横截面看时是大致矩形的。 夹紧螺栓50和螺母51通过扳手等紧固,从而将电池端子10连接到电池柱P.盖构件32确保芯线的末端或芯线的松散线做 不会干扰拧紧操作或被抓在操作者的手上或工具上。 电线覆盖部件33,34可以包括检查孔33c,34b。

    Method of producing 3-amino-2-hydroxy-1-propanol derivatives
    75.
    发明授权
    Method of producing 3-amino-2-hydroxy-1-propanol derivatives 失效
    3-氨基-2-羟基-1-丙醇衍生物的制备方法

    公开(公告)号:US5744630A

    公开(公告)日:1998-04-28

    申请号:US436344

    申请日:1995-07-18

    摘要: The present invention has for its object to provide an efficient and economical method for producing an 3-amino-2-hydroxy-1-propanol derivative and an oxazolidinone derivative derived therefrom, both of which are of use as intermediates for the production of drugs including HIV protease inhibitors. The invention relates to a method for producing an 3-amino-2-hydroxy-1-propanol derivative of general formula (2) ##STR1## (wherein R.sup.1 represents alkyl, aralkyl or aryl; R.sup.2 and R.sup.3 independently represent hydrogen or an amino-protecting group, provided, however, that both R.sup.2 and R.sup.3 are not concurrently hydrogen) and an oxazolidinone derivative derived therefrom.

    摘要翻译: PCT No.PCT / JP94 / 01540 Sec。 371 1995年7月18日第 102(e)日期1995年7月18日PCT 1994年9月20日PCT PCT。 公开号WO95 / 08530 1995年3月30日发明内容本发明的目的是提供一种生产3-氨基-2-羟基-1-丙醇衍生物和衍生自其的恶唑烷酮衍生物的有效且经济的方法,它们均用作 生产药物包括HIV蛋白酶抑制剂。 本发明涉及制备通式(2)的3-氨基-2-羟基-1-丙醇衍生物的方法(2)(其中R1代表烷基,芳烷基或芳基; R2和R3独立地表示氢或 氨基保护基,但是R2和R3不同时为氢)和衍生自其的恶唑烷酮衍生物。

    Connector housing locking mechanism
    77.
    发明授权
    Connector housing locking mechanism 失效
    连接器外壳锁定机构

    公开(公告)号:US5711684A

    公开(公告)日:1998-01-27

    申请号:US589539

    申请日:1996-01-22

    摘要: A female connector housing 11 has a locking arm 30 integrally moulded thereon, the locking arm 30 having a fitting projection 31. A male connector housing 21 has a fitting hole 24 formed on hood member 22 thereof. Two slots 34 are formed on either side of the fitting projection 31 so as to extend along the longitudinal direction of the locking arm 30. The locking arm 30 is thus partitioned into a fitting arm member 35 which includes the fitting projection 31, and two supporting arm members 36 which are formed on both sides thereof. The foot members 36a of the supporting arm members 36 are thicker than the foot member 35a of the fitting arm member 35, and thus the engagement load of the arm 30 is large, but the projection 35a is nevertheless relatively easy to disengage.

    摘要翻译: 阴连接器壳体11具有一体地模制在其上的锁定臂30,锁定臂30具有配合突起31.阳连接器壳体21具有形成在其罩部件22上的配合孔24。 两个槽34形成在嵌合突起31的两侧,以沿着锁定臂30的纵向方向延伸。因此,锁定臂30被分隔成包括配合突起31的配合臂构件35和两个支撑 臂部件36形成在其两侧。 支撑臂构件36的脚构件36a比装配臂构件35的脚构件35a厚,因此臂30的接合负荷大,但突起35a相对容易脱离。

    Method for purifying high-temperature reducing gas
    79.
    发明授权
    Method for purifying high-temperature reducing gas 失效
    纯化高温还原气的方法

    公开(公告)号:US5464604A

    公开(公告)日:1995-11-07

    申请号:US234716

    申请日:1994-04-28

    CPC分类号: C10K3/00 C01B17/0473 C10K1/20

    摘要: Disclosed are, in a method for purifying a high-temperature reducing gas in which sulfur compounds present in a high-temperature reducing gas are absorbed and removed by an absorbent according to a dry method, a method for purifying a high-temperature reducing gas which is characterized in that a reducing gas is supplied into a gas containing sulfur dioxide gas which is discharged from a regeneration system for regenerating the absorbent which system forms a system together with an absorption system in which the sulfur compounds are absorbed with the absorbent, a resulting gas mixture is led through a reactor filled with a catalyst, the sulfur dioxide gas and the reducing gas are let react with each other under pressurization so that elemental sulfur is directly produced and recovered as liquid sulfur; and the above method which is further characterized in that catalyst layers in the reactor in which the sulfur dioxide gas and the reducing gas react with each other are divided into parts or made to have a plurality of stages, a heat exchanger and a sulfur condenser are disposed between these parts or stages, and the temperature control of these gases and the removal of sulfur produced in the reaction are carried out during the reaction.

    摘要翻译: 本发明提供一种纯化高温还原气体的方法,其中高温还原气体中存在的硫化合物根据干法吸收并被吸收剂除去, 其特征在于,将还原气体供给到从再生系统排出的二氧化硫气体中,所述再生系统用于再生吸收剂,该系统与其中硫化合物与吸收剂一起吸收的吸收系统一起形成系统, 气体混合物通过填充有催化剂的反应器引导,二氧化硫气体和还原气体在加压下彼此反应,使得元素硫直接生成并回收为液体硫; 上述方法的特征还在于,将二氧化硫气体和还原气体相互反应的反应器中的催化剂层分成多个部分,或者制成多级,热交换器和硫冷凝器 设置在这些部件或级之间,并且在反应期间进行这些气体的温度控制和反应中产生的硫的去除。

    Method for predicting abnormality of mechanical seal and apparatus for
predicting same
    80.
    发明授权
    Method for predicting abnormality of mechanical seal and apparatus for predicting same 失效
    用于预测机械密封异常的方法及其预测装置

    公开(公告)号:US5345829A

    公开(公告)日:1994-09-13

    申请号:US124380

    申请日:1993-09-20

    IPC分类号: G01M13/00 G01M19/00

    CPC分类号: G01M13/005

    摘要: A method for predicting abnormality of a mechanical seal comprises detecting a displacement in the radial direction of a slidable ring of a mechanical seal and predicting abnormality of the mechanical seal from the displacement detected which represents the extent of adhesion of the slidable ring against the rotary shaft.

    摘要翻译: 一种用于预测机械密封异常的方法包括检测机械密封件的可滑动环的径向位移,并从所检测到的位移中预测机械密封的异常,其表示可滑动环抵靠旋转轴的粘附程度 。