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    • 1. 发明授权
    • .alpha.-olefin polymerization catalyst component
    • (ALPHA) - 烯烃聚合催化剂组分
    • US5177043A
    • 1993-01-05
    • US663850
    • 1991-03-22
    • Naomi KoyamaHiroyuki FuruhashiMiyuki UsuiTomoko OkanoMasahide MurataSatoshi UekiAkira Nakano
    • Naomi KoyamaHiroyuki FuruhashiMiyuki UsuiTomoko OkanoMasahide MurataSatoshi UekiAkira Nakano
    • C08F4/656C08F4/658C08F10/00
    • C08F10/00Y10S526/904
    • This invention relates to a catalytic component for the polymerization of .alpha.-olefins and provides a catalytic component of magnesium support type capable of exhibiting a high stereoregularity while maintaining an improved strength as well as a high catalytic activity. The features thereof consist in a catalyst component for the polymerization of .alpha.-olefins obtained by contacting (A) a solid component comprising, as essential components, magnesium, titanium, a halogen and an electron-donating compound with (D) an olefin in the presence of (B) a trialkylaluminum and (C) a dimethoxy group-containing compound represented by the general formula R.sup.1 R.sup.2 Si(OCH.sub.3).sub.2 where R.sup.1 and R.sup.2 are, same or different, aliphatic hydrocarbon groups with 1 to 10 carbon atoms and having a volume, calculated by the quantum chemistry calculation, of 230 to 500 .ANG..sup.3 and an electron density of oxygen atoms in the methoxy group, calculated similarly, ranging from 0.685 to 0.800 A. U. (atomic unit) and a catalyst component for the polymerization of .alpha.-olefins obtained by contacting (A) a solid component comprising, as essential components, a metal oxide, magnesium, titanium, a halogen and an electron-donating compound with (D) an olefin in the presence of (B) a trialkylaluminum and (C) a dimethoxy group-containing compound represented by the general formula R.sup.1 R.sup.2 Si(OCH.sub.3).sub.2 where R.sup.1 and R.sup.2 are, same or different, aliphatic hydrocarbon groups with 1 to 10 carbon atoms and having a volume calculated by the quantum chemistry calculation, of 170 to 500 .ANG..sup.3 and an electron density of oxygen atoms in the methoxy group, calculated similarly, ranging from 0.690 to 0.800 A. U. (atomic unit) or the volume in the range of 200 to 500 .ANG..sup.3 and the electron density in the range of 0.685 to 0.800 A. U.
    • 2. 发明授权
    • Terminal-modifed polyolefins
    • 末端改性的聚烯烃
    • US5382634A
    • 1995-01-17
    • US232304
    • 1994-04-25
    • Naomi KoyamaMiyuki UsuiHiroyuki FuruhashiSatoshi Ueki
    • Naomi KoyamaMiyuki UsuiHiroyuki FuruhashiSatoshi Ueki
    • C08F8/00C08F297/08C08F210/06C08F210/16
    • C08F8/00
    • The object of the present invention is to provide such a polyolefin that only the terminal of polypropylene or ethylene-propylene random copolymer is modified with a (meth)acrylic derivative unit to give a substantially monodipersed system. The feature thereof consists in such a polyolefin that the terminal of polypropylene or ethylene-propylene random copolymer obtained by living polymerization is modified with a (meth)acrylic derivative unit. As the (meth)acrylic derivative, there are used vinyl methacrylate, allyl methacrylate, trimethylsiloxyethyl methacrylate, 2-trimethylsiloxypropyl methacrylate, N, N-dimethylaminoethyl methacrylate, N,N-diethylaminoethyl methacrylate, glycidyl methacrylate, acrylic acid chloride and like.
    • 本发明的目的是提供这样的聚烯烃,只有聚丙烯或乙烯 - 丙烯无规共聚物的末端用(甲基)丙烯酸衍生物单元进行改性,得到基本上单体系统。 其特征在于这样的聚烯烃,其中通过活性聚合获得的聚丙烯或乙烯 - 丙烯无规共聚物的末端用(甲基)丙烯酸衍生物单元改性。 作为(甲基)丙烯酸衍生物,使用甲基丙烯酸乙烯酯,甲基丙烯酸烯丙酯,甲基丙烯酸三甲基甲硅烷氧基乙酯,甲基丙烯酸2-三甲基甲硅烷基丙酯,甲基丙烯酸N,N-二甲基氨基乙酯,甲基丙烯酸N,N-二乙基氨基乙酯,甲基丙烯酸缩水甘油酯,丙烯酰氯等。
    • 6. 发明申请
    • Three piece-combined oil ring
    • 三组合油环
    • US20060061043A1
    • 2006-03-23
    • US10542634
    • 2004-10-26
    • Junya TakahashiGyo MuramatsuMiyuki Usui
    • Junya TakahashiGyo MuramatsuMiyuki Usui
    • F16J9/00
    • C23C8/80C21D9/40C23C8/26F16J9/068
    • A three-piece combined oil-control ring comprises a pair of upper and lower side rails 222 in the axial direction and a spacer expander 224. The spacer expander is located between the side rails 222, and pushes the side rails from their inner peripheral side to generates the tension of the side rails 222. The ears of the spacer expander made of austenitic stainless steel in contact with inner peripheral surfaces of the side rails, are subjected to gas-nitriding at a temperature of 470° C. or higher to form a 10 to 60 μm thick gas-nitriding surface-layer comprising a phase having peaks at 2θ=40° and 2θ=46° by Cu—K α X-ray diffraction. In addition or alternatively, a resin coating film (31) is formed on at least surfaces of the spacer expander (7) faced to the side surfaces of the side rails or on at least surfaces of the side rails (5,6) faced to the spacer expander (7).
    • 三片式组合油控制环包括沿轴向的一对上下侧轨道222和间隔件膨胀器224.间隔件膨胀器位于侧轨222之间,并且从其内周侧推动侧轨 以产生侧轨222的张力。由奥氏体不锈钢制成的与侧轨的内周面接触的间隔物膨胀机的耳部在470℃以上的温度下进行气体氮化,形成 通过Cu-Kαα射线衍射,包括具有2θ= 40°和2θ= 46°的峰的相的10至60μm厚的气体氮化表面层。 另外或替代地,树脂涂膜(31)形成在面向侧轨的侧表面的间隔件膨胀器(7)的至少表面上,或者在侧轨(5,6)的至少面 间隔膨胀机(7)。
    • 7. 发明授权
    • Spacer expander
    • 间隔扩张器
    • US07243596B2
    • 2007-07-17
    • US11358186
    • 2006-02-21
    • Miyuki UsuiNobuo KatayamaMasahiro Nakazawa
    • Miyuki UsuiNobuo KatayamaMasahiro Nakazawa
    • F16J9/20
    • F16J9/068
    • In a combined oil ring having a spacer expander to be installed between a pair of upper and lower side rails, a plurality of axially protruding inner peripheral protruding portions are formed on the inner peripheral side of the spacer expander along its peripheral direction. The inner peripheral protruding portions press the inner peripheral surface of the side rails. On the outer peripheral side of the spacer expander, a plurality of slits are formed, and a plurality of connecting portions are located in the peripheral direction isolated by the slits. On the plurality of connecting portions, axially protruding outer peripheral protruding portions are formed.
    • 在具有安装在一对上下侧轨道之间的间隔膨胀机的组合油环中,沿间隔件膨胀机的周向形成有多个轴向突出的内周突出部。 内周突出部按压侧轨的内周面。 在间隔膨胀机的外周侧,形成有多个狭缝,多个连接部位于沿狭缝方向隔开的周向。 在多个连接部分上形成有轴向突出的外周突出部分。
    • 8. 发明申请
    • Spacer expander
    • 间隔扩张器
    • US20060169135A1
    • 2006-08-03
    • US11358186
    • 2006-02-21
    • Miyuki UsuiNobuo KatayamaMasahiro Nakazawa
    • Miyuki UsuiNobuo KatayamaMasahiro Nakazawa
    • F16J9/00
    • F16J9/068
    • In a combined oil ring having a spacer expander to be installed between a pair of upper and lower side rails, a plurality of axially protruding inner peripheral protruding portions are formed on the inner peripheral side of the spacer expander along its peripheral direction. The inner peripheral protruding portions press the inner peripheral surface of the side rails. On the outer peripheral side of the spacer expander, a plurality of slits are formed, and a plurality of connecting portions are located in the peripheral direction isolated by the slits. On the plurality of connecting portions, axially protruding outer peripheral protruding portions are formed.
    • 在具有安装在一对上下侧轨道之间的间隔膨胀机的组合油环中,沿间隔件膨胀机的周向形成有多个轴向突出的内周突出部。 内周突出部按压侧轨的内周面。 在间隔膨胀机的外周侧,形成有多个狭缝,多个连接部位于沿狭缝方向隔开的周向。 在多个连接部分上形成有轴向突出的外周突出部分。