Intermediates for the synthesis of bisphosphine compounds
    23.
    发明授权
    Intermediates for the synthesis of bisphosphine compounds 失效
    用于合成双膦化合物的中间体

    公开(公告)号:US5739360A

    公开(公告)日:1998-04-14

    申请号:US714747

    申请日:1996-09-16

    CPC分类号: C07F9/65517

    摘要: The invention relates to novel bisphosphonates and to processes for their preparation and for their resolution into the enantiomers. The bisphosphonates according to the invention are valuable intermediates for the preparation of bisphosphine compounds, especially chiral bisphosphine ligands. These in turn are constituents of transition metal complexes which are used as catalysts inter alia in asymmetric hydrogenation. The novel bisphosphonates have the general formula (I) ##STR1## in which R.sup.1 is linear or branched alkyl having up to 6 carbon atoms, aryl or aralkyl, each of which can optionally be substituted, or two radicals R.sup.1 together are a bridging hydrocarbon radical having up to 6 carbon atoms, and can exist in the form of their racemates or as enantiomers.

    摘要翻译: 本发明涉及新的双膦酸盐及其制备方法及其分解成对映体。 根据本发明的双膦酸盐是制备双膦化合物,特别是手性双膦配体的有价值的中间体。 这些又是作为催化剂的过渡金属络合物的成分,特别是用于不对称氢化。 新型二膦酸盐具有通式(I)其中R 1为具有至多6个碳原子的直链或支链烷基,芳基或芳烷基,其中每一个可任选被取代,或两个基团R 1一起为 具有至多6个碳原子的桥连烃基,并且可以以其外消旋体的形式存在或作为对映异构体存在。

    Automated inspection system and method
    25.
    发明授权
    Automated inspection system and method 失效
    自动检测系统及方法

    公开(公告)号:US07355700B2

    公开(公告)日:2008-04-08

    申请号:US11266742

    申请日:2005-11-03

    IPC分类号: G01J3/00

    摘要: An automated system for illuminating and inspecting the inner surface areas of tubular samples, especially stents, is disclosed. The system comprises rotatable means for receiving the sample to be inspected; at least one fluorescent surface area arranged in the immediate vicinity of the sample to be inspected; an UV-light source for illuminating the at least one fluorescent surface area; an electronic line-scan camera for inspecting the sample; and a computer based electronic imaging system, functionally connected to the camera, whereby the imaging system creates a line-by-line image of an area extending along the length of the sample as it rotates under the camera.

    摘要翻译: 公开了一种用于照明和检查管状样品,特别是支架的内表面区域的自动化系统。 该系统包括用于接收被检样品的可转动装置; 至少一个布置在要检查的样品附近的荧光表面区域; 用于照射所述至少一个荧光表面区域的UV光源; 用于检查样品的电子线扫描相机; 以及基于计算机的电子成像系统,其功能上连接到相机,由此成像系统在沿着相机旋转的沿着样本的长度延伸的区域中创建逐行图像。

    Automated inspection system and method

    公开(公告)号:US20060126061A1

    公开(公告)日:2006-06-15

    申请号:US11266742

    申请日:2005-11-03

    IPC分类号: G01N21/88

    摘要: An automated system for illuminating and inspecting the inner surface areas of tubular samples, especially stents, is disclosed. The system comprises rotatable means for receiving the sample to be inspected; at least one fluorescent surface area arranged in the immediate vicinity of the sample to be inspected; an UV-light source for illuminating the at least one fluorescent surface area; an electronic line-scan camera for inspecting the sample; and a computer based electronic imaging system, functionally connected to the camera, whereby the imaging system creates a line-by-line image of an area extending along the length of the sample as it rotates under the camera.

    Process for preparing 4-aminodiphenylamine
    27.
    发明授权
    Process for preparing 4-aminodiphenylamine 失效
    制备4-氨基二苯胺的方法

    公开(公告)号:US06414192B1

    公开(公告)日:2002-07-02

    申请号:US10007014

    申请日:2001-11-06

    IPC分类号: C07C20900

    CPC分类号: C07C209/38 C07C211/55

    摘要: The invention provides a process for preparing 4-aminodiphenylamine, an important starting product for synthesizing antioxidants and stabilizers in the rubber and polymer industry, by hydrogenating nitrosobenzene with hydrogen in the presence of a proton acid as catalyst and in the presence of a hydrogenating catalyst, optionally in the presence of an inert organic solvent and thermally decomposing the 4-ADPA ammonium salt produced in this way, wherein 4-ADPA is obtained. 4-aminodiphenylamine is produced in good yields and high purity by the process according to the present invention. Furthermore, no effluent is produced, which makes the process particularly economic and ecological.

    摘要翻译: 本发明提供一种制备4-氨基二苯胺的方法,该方法是在质子酸作为催化剂存在下,在氢化催化剂存在下,通过在氢气存在下,用氢气将亚硝基苯氢化,在橡胶和聚合物工业中合成抗氧化剂和稳定剂的重要起始产物, 任选地在惰性有机溶剂的存在下,并以这种方式产生的4-ADPA铵盐热分解,得到4-ADPA。4-氨基二苯胺通过本发明的方法以良好的产率和高纯度生产。 此外,没有产生流出物,这使得该过程特别经济和生态。

    POLARIZING BEAMSPLITTER
    30.
    发明申请
    POLARIZING BEAMSPLITTER 失效
    偏光镜

    公开(公告)号:US20060268422A1

    公开(公告)日:2006-11-30

    申请号:US11426557

    申请日:2006-06-26

    IPC分类号: G02B27/12

    摘要: A polarizing beamsplitter is provided, comprising two wedge-shaped prisms of a birefringent material, the prisms forming a plan-parallel plate, wherein an incident light beam is separated into two partial beams being arranged parallel to the incident beam when emerging from the beamsplitter, the partial beams having a lateral distance with respect to each other, which is continuously changeable.

    摘要翻译: 提供了一种偏振分束器,其包括两个双折射材料的楔形棱镜,棱镜形成平面平行板,其中入射光束被分离为当从分束器出射时与入射光束平行布置的两个部分光束, 该部分光束具有相对于彼此的横向距离,其可连续变化。