Catalyst for olefin polymerization
    1.
    发明授权
    Catalyst for olefin polymerization 失效
    烯烃聚合催化剂

    公开(公告)号:US4526942A

    公开(公告)日:1985-07-02

    申请号:US456927

    申请日:1983-01-10

    IPC分类号: C08F10/00 C08F4/06

    CPC分类号: C08F10/00

    摘要: Zeolite supported, organochromium based catalyst compositions are provided which are especially suitable for the polymerization of 1-olefins such as ethylene. Pi-bonded organochromium [II] compounds such as chromocene (dicyclopentadienyl chromium) are reacted with ZSM-5 type zeolites to produce such novel catalysts.

    摘要翻译: 提供了支撑沸石的有机铬基催化剂组合物,其特别适用于1-烯烃如乙烯的聚合。 将引发的有机铬[II]化合物如色烯(二环戊二烯基铬)与ZSM-5型沸石反应生成这种新型催化剂。

    Alkyltitanium and alkylchromium catalysts for olefin polymerization
    3.
    发明授权
    Alkyltitanium and alkylchromium catalysts for olefin polymerization 失效
    用于烯烃聚合的烷基钛和烷基铬催化剂

    公开(公告)号:US4376722A

    公开(公告)日:1983-03-15

    申请号:US315827

    申请日:1981-10-27

    IPC分类号: C08F4/42 C08F10/00 C08F4/02

    CPC分类号: C08F10/00

    摘要: Zeolite supported, organometallic based catalyst composition are provided which are especially suitable for the polymerization of 1-olefins such as ethylene. Alkyltitanium and alkylchromium compounds such as tributylchromium and tetrabutyltitanium are reacted with ZSM-5 type zeolites to produce such novel catalysts.

    摘要翻译: 提供了沸石负载的有机金属基催化剂组合物,其特别适用于1-烯烃如乙烯的聚合。 烷基钛和烷基铬化合物如三丁基铬和四丁基钛与ZSM-5型沸石反应生成这种新型催化剂。

    Dipole antenna with parabolic reflector
    6.
    发明授权
    Dipole antenna with parabolic reflector 失效
    具有抛物面反射器的偶极天线

    公开(公告)号:US4160980A

    公开(公告)日:1979-07-10

    申请号:US840729

    申请日:1977-10-11

    申请人: James G. Murray

    发明人: James G. Murray

    IPC分类号: H01Q9/28 H01Q19/13 H01L21/26

    CPC分类号: H01Q9/28 H01Q19/13

    摘要: A UHF antenna for black and white and color television receivers embodies a dished reflector and coacting a dipole mounted a fraction of a wave-length in front of the reflector and being of bow tie configuration. The antenna possesses broad band characteristics for wide angle reception, and wide frequency deviation at UHF wave-lengths. The antenna structure which is for indoor use is fabricated from simple sheet metal components and embodies an integral support base which can be manually adjusted in any direction. Economy and simplicity of construction are featured.

    摘要翻译: 用于黑白和彩色电视接收机的UHF天线体体现了一个碟形反射器,并将偶极子与反射器前面安装了一小部分波长并且具有弓形结构。 天线具有广角接收的宽带特性,UHF波段宽频偏。 用于室内使用的天线结构由简单的钣金部件制成,并且具有可以在任何方向上手动调节的整体支撑基座。 具有经济性和简易性。

    Polymers of methyl ethenyl benzene
    8.
    发明授权
    Polymers of methyl ethenyl benzene 失效
    甲基乙烯基苯的聚合物

    公开(公告)号:US4486574A

    公开(公告)日:1984-12-04

    申请号:US412418

    申请日:1982-08-27

    申请人: James G. Murray

    发明人: James G. Murray

    IPC分类号: C08F8/22 C08F8/36

    CPC分类号: C08F8/22 C08F8/36

    摘要: Polymers of methyl styrene produced from an isomer mixture having a high content of the para-isomer are halogenated, sulfonated or subjected to other substitution reactions.

    摘要翻译: 由具有高对数异构体含量的异构体混合物制备的甲基苯乙烯的聚合物被卤化,磺化或进行其它取代反应。

    Process for suspension polymerization of styrenic monomers
    9.
    发明授权
    Process for suspension polymerization of styrenic monomers 失效
    苯乙烯单体悬浮聚合方法

    公开(公告)号:US4367320A

    公开(公告)日:1983-01-04

    申请号:US248660

    申请日:1981-03-27

    申请人: James G. Murray

    发明人: James G. Murray

    CPC分类号: C08F12/00 C08F12/06

    摘要: There is provided a method for the suspension polymerization of one or more styrenic monomers. This method involves increasing the amount of substantially water insoluble free radical initiator in the suspension after the conversion of the monomer has reached at least 50%. The temperature of the suspension is at least 110.degree. C. throughout the entire polymerization.

    摘要翻译: 提供了一种或多种苯乙烯类单体的悬浮聚合方法。 该方法包括在单体转化率达到至少50%之后,增加悬浮液中基本上不溶于水的自由基引发剂的量。 在整个聚合过程中,悬浮液的温度至少为110℃。

    Use of nickel cyclooctadiene as a hydrogenation catalyst
    10.
    发明授权
    Use of nickel cyclooctadiene as a hydrogenation catalyst 失效
    使用镍环辛二烯作为氢化催化剂

    公开(公告)号:US3959239A

    公开(公告)日:1976-05-25

    申请号:US574480

    申请日:1975-05-05

    IPC分类号: C07C5/03 C08C19/02 C08F8/04

    摘要: A process for the hydrogenation of hydrocarbon materials having olefinic unsaturation and/or olefinic-aromatic unsaturation, and particularly wherein hydrogenation is carried out at relatively low catalyst levels and mild reaction conditions whereby olefinic bonds are reduced and, when components of the reaction mixture contain aromatic unsaturation, to effect selective hydrogenation of olefinic bonds, without substantial, if any, hydrogenation of aromatic unsaturation; said process comprising contacting such hydrocarbon materials under hydrogenation reaction conditions of temperature and pressure in the presence of bis(1,5-cyclooctadiene) nickel as the hydrogenation catalyst.

    摘要翻译: 具有烯属不饱和度和/或烯烃 - 芳族不饱和度的烃材料的氢化方法,特别是其中氢化在相对低的催化剂水平和温和的反应条件下进行,由此烯键降低,并且当反应混合物的组分含有芳族 不饱和键,以实现烯属键的选择性氢化,而不显着(如果有的话)芳族不饱和度的氢化; 所述方法包括在作为氢化催化剂的双(1,5-环辛二烯)镍的存在下,在温度和压力的加氢反应条件下使这些烃物质接触。