Process for producing highly stereoregular .alpha.-olefin polymers
    2.
    发明授权
    Process for producing highly stereoregular .alpha.-olefin polymers 失效
    制备高度立构规则的α-烯烃聚合物的方法

    公开(公告)号:US4412049A

    公开(公告)日:1983-10-25

    申请号:US456560

    申请日:1983-01-10

    CPC分类号: C08F10/00

    摘要: A process for producing highly stereoregular .alpha.-olefin polymers which comprises polymerizing .alpha.-olefins in the presence of a catalyst system comprising:(A) a solid catalyst obtained by contact reaction between(a) a solid product prepared by reacting an organo-magnesium compound with at least one of halogenated silicon compound (I) and halogenated aluminum compound (II) in a solvent and(b) a titanium compound having both titanium-aryloxy and titanium-halogen linkages, and(B) an organo-aluminum compound as an activating agent.

    摘要翻译: 一种制备高度立构规整的α-烯烃聚合物的方法,其包括在催化剂体系存在下聚合α-烯烃,该催化剂体系包含:(A)通过以下步骤获得的固体催化剂:(a)通过使有机镁化合物 与卤化硅化合物(I)和卤化铝化合物(II)中的至少一种在溶剂中反应,和(b)具有钛 - 芳氧基和钛 - 卤素键的钛化合物,和(B)有机铝化合物 活化剂。

    Propylene-ethylene copolymer having improved stretchability
    4.
    发明授权
    Propylene-ethylene copolymer having improved stretchability 失效
    具有改善的拉伸性的丙烯 - 乙烯共聚物

    公开(公告)号:US4414373A

    公开(公告)日:1983-11-08

    申请号:US399146

    申请日:1982-07-16

    CPC分类号: C08F210/06

    摘要: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 --O--R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.

    摘要翻译: 在制备聚丙烯的方法中,包括在氢气存在下聚合丙烯和催化剂体系,所述催化剂体系包含(A)通过用有机铝化合物还原四氯化钛获得的三氯化钛,并将还原的固体与由下式表示的醚反应:R1-O- 其中R 1和R 2如上定义,卤素化合物选自(ⅰ)卤素或下式的卤代化合物:X1X2a(其中X1,X2和a定义如前),(ⅱ)卤化钛和 (iii)有机卤素化合物,同时或相继和(B)有机铝化合物,其改进包括将乙烯与丙烯一起供应到聚合体系中,使得基于丙烯总量的体系的气相中的乙烯浓度 ,系统的气相中的乙烯和氢为0.15〜1.5摩尔%,得到丙烯 - 乙烯共聚物 公开了乙烯含量为0.1〜1.0重量%。 丙烯 - 乙烯共聚物的拉伸性提高。

    Process for the production of purified propylene homopolymers or
copolymers
    6.
    发明授权
    Process for the production of purified propylene homopolymers or copolymers 失效
    制备纯化丙烯均聚物或共聚物的方法

    公开(公告)号:US4461881A

    公开(公告)日:1984-07-24

    申请号:US314344

    申请日:1981-10-23

    CPC分类号: C08F6/02 C08F10/00 C08F10/06

    摘要: In a process for producing a homopolymer or a copolymer of propylene comprising polymerizing propylene or copolymerizing propylene and at least one other unsaturated hydrocarbon monomer in liquid propylene using a catalyst system containing activated titanium trichloride (a) and an organoaluminum compound (b), the activated titanium trichloride (a) being prepared by reducing titanium tetrachloride with an organoaluminum compound followed by activation, to produce a polymer slurry; introducing the polymer slurry produced into the top of a counter-current washing tower; and washing the polymer slurry by counter-currently contacting the polymer slurry with liquid propylene introduced into the bottom of the washing tower, the improvement which comprises purifying the homopolymer or copolymer of propylene by feeding an epoxide in a molar amount of about 1 to about 15 times the molar amount of the total of activated titanium trichloride (a) and organoaluminum compound (b), to a part of said washing tower, thereby deactivating the catalyst and removing the catalyst residue and the homopolymer or copolymer of propylene dissolved in the polymer slurry.

    摘要翻译: 在使用包含活化的三氯化钛(a)和有机铝化合物(b)的催化剂体系的丙烯均聚物或共聚物的制备方法中,该方法包括聚合丙烯或使液体丙烯中的至少一种其它不饱和烃单体共聚, 三氯化钛(a)通过用有机铝化合物还原四氯化钛然后活化而制备,以产生聚合物浆料; 将产生的聚合物浆料引入逆流洗涤塔的顶部; 并且通过将聚合物浆料与引入洗涤塔底部的液态丙烯反向接触来洗涤聚合物浆料,其改进包括通过加入摩尔量为约1至约15的环氧化物纯化丙烯的均聚物或共聚物 倍的活化三氯化钛(a)和有机铝化合物(b)的总量的摩尔量与所述洗涤塔的一部分反应,从而使催化剂失活并除去溶解在聚合物浆料中的催化剂残余物和丙烯均聚物或共聚物 。

    Process for producing propylene copolymer
    7.
    发明授权
    Process for producing propylene copolymer 失效
    制备丙烯共聚物的方法

    公开(公告)号:US4367322A

    公开(公告)日:1983-01-04

    申请号:US291701

    申请日:1981-08-10

    IPC分类号: C08F4/64 C08F210/06

    CPC分类号: C08F210/06 Y10S526/916

    摘要: In a process for producing propylene copolymer containing about 80 to 99 mol % propylene and about 1 to 20 mol % ethylene and/or an .alpha.-olefin having 4 to 18 carbon atoms using a Ziegler-Natta catalyst, the improvement which comprises said Ziegler-Natta catalyst comprising:(A) titanium trichloride prepared by reducing titanium tetrachloride with an organoaluminum compound and activating the product; and(B) an organoaluminum compound;with the molar ratio of (B)/(A) being about 20 to 100.

    摘要翻译: 在使用齐格勒 - 纳塔催化剂的丙烯共聚物的制备方法中,所述丙烯共聚物含有约80-99摩尔%的丙烯和约1-20摩尔%的乙烯和/或具有4-18个碳原子的α-烯烃,其改进包括所述齐格勒 - 纳塔催化剂,其包含:(A)通过用有机铝化合物还原四氯化钛制备的三氯化钛并活化该产物; 和(B)有机铝化合物; (B)/(A)的摩尔比为约20至100。

    Process for producing a propylene-ethylene copolymer having improved
stretchability
    8.
    发明授权
    Process for producing a propylene-ethylene copolymer having improved stretchability 失效
    制备具有改善的拉伸性的丙烯 - 乙烯共聚物的方法

    公开(公告)号:US4355144A

    公开(公告)日:1982-10-19

    申请号:US257431

    申请日:1981-04-24

    CPC分类号: C08F210/06

    摘要: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 -O-R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.

    摘要翻译: 在制备聚丙烯的方法中,包括在氢气存在下聚合丙烯和催化剂体系,所述催化剂体系包含(A)通过用有机铝化合物还原四氯化钛获得的三氯化钛,并将还原的固体与由下式表示的醚反应:R1-O- 其中R 1和R 2如上定义,卤素化合物选自(ⅰ)卤素或下式的卤代化合物:X1X2a(其中X1,X2和a定义如前),(ⅱ)卤化钛和 (iii)有机卤素化合物,同时或相继和(B)有机铝化合物,其改进包括将乙烯与丙烯一起供应到聚合体系中,使得基于丙烯总量的体系的气相中的乙烯浓度 ,系统的气相中的乙烯和氢为0.15〜1.5摩尔%,得到丙烯 - 乙烯共聚物 公开了乙烯含量为0.1〜1.0重量%。 丙烯 - 乙烯共聚物的拉伸性提高。

    Automatic flaw detection device
    10.
    发明授权
    Automatic flaw detection device 失效
    自动探伤装置

    公开(公告)号:US4562738A

    公开(公告)日:1986-01-07

    申请号:US596700

    申请日:1984-04-04

    IPC分类号: G01N29/26 G01N29/04

    CPC分类号: G01N29/26

    摘要: An automatic flaw detection apparatus comprises a supporting frame; a rotational frame supported inside the supporting frame in a freely rotatable manner by means of bearings; a hollow shaft which is supported by and inside the rotational frame, through the interior of which passes a material to be inspected; a holder which is disposed within the hollow shaft extending in the longitudinal direction of the axis of the hollow shaft and rotates in association with the hollow shaft, the a sensor incorporated in the holder to detect any defect in the material to be probed; and a signal transmission device which is placed between the hollow shaft and the rotational frame and comprises a stator section supported by the supporting frame and a rotor section supported by the hollow shaft or the rotational frame to be electrically in association with the stator section, and which transmits flaw detection signal from the sensor to the outside.

    摘要翻译: 一种自动探伤装置,包括支撑框架; 旋转框架,其通过轴承以可自由旋转的方式支撑在所述支撑框架内; 一个空心轴,由旋转框架支撑并在旋转框架的内部,通过其内部通过待检查的材料; 所述保持器设置在所述中空轴内,所述保持器沿所述中空轴的轴线的长度方向延伸,并且与所述中空轴相关联地旋转,所述传感器并入所述保持器中,以检测待探测材料中的任何缺陷; 以及信号传输装置,其设置在所述中空轴与所述旋转框架之间,并且包括由所述支撑框架支撑的定子部分和由所述中空轴或所述旋转框架支撑的与所述定子部分电连接的转子部分,以及 其将探测信号从传感器传送到外部。