Polyethylene composition and process for producing same
    11.
    发明授权
    Polyethylene composition and process for producing same 有权
    聚乙烯组合物及其制备方法

    公开(公告)号:US07678866B2

    公开(公告)日:2010-03-16

    申请号:US10832342

    申请日:2004-04-27

    Abstract: A polyethylene composition prepared by polymerizing ethylene and an optional olefin with ≧3 carbon atoms in the presence of a macromonomer, is provided. The macromonomer is a vinyl-terminated ethylene polymer prepared by polymerizing ethylene and an optional olefin with ≧3 carbon atoms, and the macromonomer has (A) Mn≧5,000, and Mw/Mn=2-5. The polyethylene composition comprises (C) branched polyethylene prepared by copolymerizing ethylene, the macromonomer and an optional olefin with ≧3 carbon atoms, and the macromonomer. The polyethylene composition has (D) a density of 0.890-0.980 g/cm3, (E) Mw=30,000-10,000,000, (F) Mw/Mn=2-30, (G) a long chain branch frequency of 0.01-3 per 1,000 C atoms, and (H) a shrinking factor (g′ value) of 0.1-0.9 as measured by GPC/intrinsic-viscosity. The polyethylene composition can be finely divided particles having (P) a powder bulk density of 0.15-0.50 g/cm3.

    Abstract translation: 提供了通过在大分子单体的存在下聚合乙烯和具有≥3个碳原子的任选的烯烃制备的聚乙烯组合物。 大分子单体是通过聚合乙烯和具有≥3个碳原子的任选烯烃制备的乙烯基封端的乙烯聚合物,并且大分子单体具有(A)Mn≥5000,Mw / Mn = 2-5。 聚乙烯组合物包含(C)通过共聚乙烯,大分子单体和任选的具有≥3个碳原子的烯烃制备的支链聚乙烯和大分子单体。 聚乙烯组合物具有(D)密度为0.890-0.980g / cm 3,(E)Mw = 30,000-10,000,000,(F)Mw / Mn = 2-30,(G)长链支化频率为0.01-3 1000个C原子,(H)通过GPC /固有粘度测定的收缩因子(g'值)为0.1-0.9。 聚乙烯组合物可以是具有(P)粉末堆积密度为0.15-0.50g / cm 3的细碎颗粒。

    Catalyst for .alpha.E --olefin polymerization containing a Lewis base
    13.
    发明授权
    Catalyst for .alpha.E --olefin polymerization containing a Lewis base 失效
    含有路易斯碱的α-烯烃聚合催化剂

    公开(公告)号:US5817590A

    公开(公告)日:1998-10-06

    申请号:US619884

    申请日:1996-03-20

    CPC classification number: C08F10/00 C08F4/65908 C08F4/65922 Y10S526/943

    Abstract: A catalyst for olefin polymerization is provided which comprises, as the components, a) a metallocene compound, b) an ionizing ionic compound, c) an organoaluminum compound, and d) a Lewis base compound. This catalyst has a stable active species and improves productivity of an olefin polymer without deterioration of the catalytic activity the metallocene is represented by General Formula (1) or (2) where Cp-containing ligands may be Cp, fluorenyl, indenyl or tetrahydroindenyl and where the metal is a group 4 metal of the periodic table.

    Abstract translation: 提供了用于烯烃聚合的催化剂,其包含a)茂金属化合物,b)电离离子化合物,c)有机铝化合物,和d)路易斯碱化合物。 该催化剂具有稳定的活性物质并且提高了烯烃聚合物的生产率,而不降低催化活性,金属茂由通式(1)或(2)表示,其中含Cp的配位体可以是Cp,芴基,茚基或四氢茚基, 金属是周期表的第4族金属。

    Semiconductor accelerometer
    14.
    发明授权
    Semiconductor accelerometer 失效
    半导体加速度计

    公开(公告)号:US5471876A

    公开(公告)日:1995-12-05

    申请号:US964030

    申请日:1992-10-21

    Applicant: Akihiro Yano

    Inventor: Akihiro Yano

    CPC classification number: G01P21/00

    Abstract: A structure of a semiconductor accelerometer which includes a body having a mass, beams for supporting the mass and gauge resistors provided on the beams, upper and bottom covering members sandwiching the body so as to form apertures over and under the mass and at least one through hole provided in at least any one of said upper and bottom covering members. Preferably, the through hole is provided at a center portion of the upper covering member. A probe passes through the through hole and the mass is pressed down with the top of the probe by which a predetermined strain is caused at the beams having the gauge resistors. This permits a measurement of the characteristic of the output voltage to the variation of the mass in the vertical direction.

    Abstract translation: 一种半导体加速度计的结构,其包括具有质量的主体,用于支撑质量的梁和设置在梁上的测量电阻器,上部和底部覆盖部件夹着主体,以在质量块上方和下方形成孔 孔设置在所述上​​盖部件和底部覆盖部件中的至少任意一个上。 优选地,通孔设置在上覆盖构件的中心部分。 探针通过通孔,并且质量被探针的顶部压下,由此在具有量规电阻器的光束处引起预定的应变。 这允许测量输出电压的特性与质量在垂直方向上的变化。

    Organic transition metal complex
    15.
    发明授权
    Organic transition metal complex 失效
    有机过渡金属络合物

    公开(公告)号:US5374753A

    公开(公告)日:1994-12-20

    申请号:US117288

    申请日:1993-09-07

    CPC classification number: C07F17/00 C08F10/00 C08F4/65922

    Abstract: An organometal complex is provided which is represented by the general formula (1) below: ##STR1## wherein Cp.sup.1 and Cp.sup.2 are respectively a substituted or unsubstituted cyclopentadienyl group; R.sup.1 is a group selected from alkylene groups or arylalkylene groups having 1 to 20 carbons, dialkylsilylene groups, dialkylgermanylene groups, alkylphosphinediyl groups, or alkylimino groups and R.sup.1 crosslinking Cp.sup.1 and Cp.sup.2 together; m is 0 or 1; M is selected from titanium, zirconium, and hafnium; R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen, a hydrocarbon group of 1 to 12 carbons, an alkoxyl group, or an aryloxy group; and MAO is a methylalumoxane group. This organometal complex is capable of producing selectively an olefin polymer without use of any other additional catalyst component.

    Abstract translation: 提供由以下通式(1)表示的有机金属络合物:取代或未取代的环戊二烯基; R1是选自亚烷基或碳原子数为1〜20的芳基亚烷基,二烷基亚甲硅烷基,二烷基亚甲基,烷基亚膦基或烷基亚氨基,R1交联Cp1和Cp2; m为0或1; M选自钛,锆和铪; R2,R3和R4独立地为氢,1〜12个碳的烃基,烷氧基或芳氧基; MAO是甲基铝氧烷基。 该有机金属络合物能够选择性地生产烯烃聚合物而不使用任何其它另外的催化剂组分。

    Handy type image scanner
    17.
    发明授权
    Handy type image scanner 失效
    便携式图像扫描仪

    公开(公告)号:US06681062B1

    公开(公告)日:2004-01-20

    申请号:US09644561

    申请日:2000-08-24

    Applicant: Akihiro Yano

    Inventor: Akihiro Yano

    CPC classification number: H04N1/0312 H04N1/107 H04N1/1077

    Abstract: A handy scanner equipped with rollers in a lower surface of a bottom plate thereof includes a bank portion protruding downward from the lower surface of the bottom plate and provided to surround a periphery of an FAP protruding downward from the same lower surface such that the FAP does not contact with a surface of an original. Downward protruding distances of the bank portion and rollers are determined such that at least a portion of the bank portion and the rollers can contact with a surface of an original simultaneously and, preferably, a difference in vertical level between lower ends of the bank portion and the FAP is set such that CTF of the handy scanner becomes 30% or more.

    Abstract translation: 在底板的下表面配备有辊的便携式扫描仪具有从底板的下表面向下突出的堤部,其设置成包围从同一下表面向下突出的FAP的周边,使得FAP 不接触原件的表面。 确定堤部和辊的向下突出距离,使得堤岸部分和辊的至少一部分可以同时与原件的表面接触,并且优选地与堤岸部分和辊的下端之间的垂直水平差异 设置FAP使得便携式扫描仪的CTF为30%以上。

    Process for producing ethylene/&agr;-olefin copolymer
    19.
    发明授权
    Process for producing ethylene/&agr;-olefin copolymer 失效
    生产乙烯/α-烯烃共聚物的方法

    公开(公告)号:US06207774B1

    公开(公告)日:2001-03-27

    申请号:US08946857

    申请日:1997-10-08

    Abstract: An ethylene/&agr;-olefin copolymer of a weight-average molecular weight of not less than 40000 is produced by copolymerization of ethylene with an &agr;-olefin having three or more carbons by use of an olefin polymerization catalyst at a polymerization temperature of not lower than 120° C., the olefin polymerization catalyst comprising, as constitutional components, a) a metallocene compound, b) an ionizing ionic compound, and c) an organoaluminum compound, the ionizing ionic compound (b) being a compound which is capable of changing the metallocene compound (a) into a cationic form and does not further react the cationic form of the metallocene compound. This process produces an ethylene/&agr;-olefin copolymer of high molecular weight in high efficiency.

    Abstract translation: 重均分子量不小于40000的乙烯/α-烯烃共聚物是通过使用烯烃聚合催化剂在不低于3的聚合温度下使乙烯与具有3个或更多个碳原子的α-烯烃共聚制备的 作为组成成分的烯烃聚合催化剂包含a)茂金属化合物,b)电离离子化合物和c)有机铝化合物,电离化离子化合物(b)是能够改变的化合物 茂金属化合物(a)成阳离子形式,不会使阳离子形式的茂金属化合物进一步反应。 该方法以高效率产生高分子量的乙烯/α-烯烃共聚物。

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