Method for manufacturing fluoroalcohol
    1.
    发明授权
    Method for manufacturing fluoroalcohol 失效
    氟代醇的制备方法

    公开(公告)号:US06294704B1

    公开(公告)日:2001-09-25

    申请号:US09394672

    申请日:1999-09-13

    IPC分类号: C07C2980

    CPC分类号: C07C29/44 C07C31/38

    摘要: The invention relates to a method for manufacturing a fluoroalcohol represented by formula (1) H(CFR1CF2)nCH2OH  (1) (wherein R1 represents F or CF3, when n=1; R1 represents F, when n=2) by reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of a free radical generator, wherein the method comprises the steps of: feeding a reaction mixture into a distillation column; distilling off methanol from the top of the distillation column; withdrawing a bottom fraction comprising the fluoroalcohol from the bottom of the distillation column; removing a fraction comprising water and HF from the distillation column by side cut; feeding methanol from the top of the distillation column back into a reactor for recycling; and purifying the bottom fraction to recover the fluoroalcohol represented by formula (1).

    摘要翻译: 本发明涉及一种制备由式(1)表示的氟代醇的方法(其中,当n = 1时,R1表示F或CF3,当n = 2时,R1表示F,当甲醇与四氟乙烯或六氟丙烯反应时) 自由基发生剂,其中所述方法包括以下步骤:将反应混合物进料到蒸馏塔中; 从蒸馏塔的顶部蒸出甲醇; 从蒸馏塔的底部排出包含氟代醇的底部馏分; 通过侧切从蒸馏塔中除去包含水和HF的馏分; 将甲醇从蒸馏塔的顶部送入反应器进行回收; 并纯化底部馏分以回收由式(1)表示的氟代醇。

    Fluorine-containing 2-nitroimidazole derivatives
    4.
    发明授权
    Fluorine-containing 2-nitroimidazole derivatives 失效
    含氟的2-硝基咪唑衍生物

    公开(公告)号:US4977273A

    公开(公告)日:1990-12-11

    申请号:US448909

    申请日:1989-12-12

    IPC分类号: C07D233/91

    CPC分类号: C07D233/91

    摘要: A 2-nitroimidazole derivative of the formula: ##STR1## wherein R.sub.f is a group of the following formula (II) or (III):--CH.sub.2 CFXCH.sub.2 OR.sub.1 (II)wherein X is a hydrogen atom or a halogen atom; R.sub.1 is a group of the formula: ##STR2## wherein R.sub.2 is a hydrogen atom, a hydroxyl group, a C.sub.1 -C.sub.3 alkyl group, a C.sub.2 -C.sub.4 acyl group, benzylidene or acetonide; R.sub.3 is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group; Z is a hydrogen atom, COOY, COOR.sub.3, CONHOY, CONR.sub.4 R.sub.5 (wherein R.sub.4 and R.sub.5 are hydroxyl group-containing C.sub.1 -C.sub.3 alkyl groups or hydrogen atoms; Y is a hydrogen atom or a monovalent metal atom), an amino group, a hydroxyl group or OR.sub.3 ; l is an integer of 1 to 3; o is an integer of 0 to 3; p is an integer of 0 to 2; q is an integer of 0 to 3; m and n are integers of 0 to 4; and 1.ltoreq.m+n.ltoreq.4 or ##STR3## wherein R.sub.3, X and p are the same as defined above; Z' is the same as Z or is OCOOCH.sub.3 ; r is an integer of 1 to 3; s is 0 or 1; t is an integer of 0 to 4 provided that when p=0, s.noteq.0 and at least one X is a fluorine atom; and a radiosensitizer comprising said nitroimidazole derivative.

    Surface shape measuring system
    5.
    发明授权
    Surface shape measuring system 有权
    表面形状测量系统

    公开(公告)号:US06906809B2

    公开(公告)日:2005-06-14

    申请号:US10343071

    申请日:2001-07-12

    IPC分类号: G01B11/24 G01B11/25 G06T1/00

    CPC分类号: G01B11/254

    摘要: A grating (3) is disposed to face the measurement target surface of a measurement target object (11). A light source (1) irradiates the grating (3) with illumination light. A camera (6) captures a moire fringe image formed on the grating (3) by light passing through the grating 3 and reflected by the measurement target surface. A moving means (9) changes the distance (H) between the grating 3 and the measurement target surface. An analyzing means (8) performs an analysis process of obtaining 3-D shape information of the measurement target surface from the image picked up by the camera (6) in at least two cases in which the distance (H) is set to different values, and obtains, on the basis of the 3-D shape information in each case and the distance H, true 3-D shape information from which the measurement error caused by the inclination of the measurement target surface is eliminated.

    摘要翻译: 光栅(3)被设置为面对测量目标物体(11)的测量目标表面。 光源(1)用光照射光栅(3)。 相机(6)通过光通过光栅3并被测量目标表面反射,捕获在光栅(3)上形成的莫尔条纹图像。 移动装置(9)改变光栅3和测量目标表面之间的距离(H)。 分析装置(8)在将距离(H)设定为不同值的至少两种情况下,进行从由照相机(6)拾取的图像获得测量对象面的3-D形状信息的分析处理 并且根据每种情况下的3-D形状信息和距离H,获得消除了由测量对象表面的倾斜引起的测量误差的真实3-D形状信息。

    Process for producing fluoroalcohol
    6.
    发明授权
    Process for producing fluoroalcohol 失效
    氟代醇的制备方法

    公开(公告)号:US06187969B1

    公开(公告)日:2001-02-13

    申请号:US09394679

    申请日:1999-09-13

    IPC分类号: C07C2900

    CPC分类号: C07C29/44 C07C31/38

    摘要: A process for producing a fluoroalcohol of the following formula (1) H(CFR1CF2)nCH2OH  (1) (n=1 or 2, wherein R1 represents F or CF3 when n=1; R1 represents F when n=2) comprising reacting methanol with tetrafluoroethylene or hexafluoropropylene in the presence of an initiator wherein the fluoroalcohol of formula (1) is distilled after decomposing the remaining initiator contained in the reaction mixture.

    摘要翻译: 一种制备下式(1)的氟代醇的方法(n = 1或2,当n = 1时,R1表示F或CF3;当n = 2时,R1表示F),包括使甲醇与四氟乙烯或六氟丙烯反应, 其中在分解反应混合物中所含的剩余引发剂之后蒸馏出式(1)的氟代醇的引发剂。

    Method of measuring an inner stress state of disk substrate
    7.
    发明授权
    Method of measuring an inner stress state of disk substrate 失效
    测量盘基片内应力状态的方法

    公开(公告)号:US06665059B2

    公开(公告)日:2003-12-16

    申请号:US09781557

    申请日:2001-02-13

    IPC分类号: G01B1116

    CPC分类号: G01B11/16 G01B11/18

    摘要: A measuring method capable of automatically analyzing quantitatively the inner state of a disk is provided. Linearly polarized light from a light source enters a retarder to produce a desired elliptically polarized state. The elliptically polarized light is then passed through a half-wave plate to rotate the direction of a principal axis of the ellipse. The light is expanded into two dimensions by lens systems and to obtain planar information, and is further transmitted through a disk substrate so that the birefringence of a specimen, which depends on an inner stress state and a polymer orientation state, changes the phase of the light. The light wave with its phase changed is passed through a polarizer arranged perpendicular to the principal axis of the retarder. The CCD detects the light wave as a light intensity.

    摘要翻译: 提供能够定量地自动分析盘内部状态的测量方法。 来自光源的线偏振光进入延迟器以产生期望的椭圆极化状态。 然后将椭圆偏振光通过半波片以旋转椭圆的主轴的方向。 光被透镜系统扩展成二维并获得平面信息,并且进一步透过盘基片,使得取决于内应力状态和聚合物取向状态的试样的双折射率改变了 光。 其相位改变的光波通过垂直于延迟器主轴布置的偏振片。 CCD将光波检测为光强度。