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    • 42. 发明专利
    • Multi-stage manufacturing method for olefin
    • 油脂多级制造方法
    • JP2003313218A
    • 2003-11-06
    • JP2002117099
    • 2002-04-19
    • Mitsui Chemicals Inc三井化学株式会社
    • TSUTSUI TOSHIYUKITAKAHASHI MAMORUMATSUDA SHOTARO
    • C08F4/64C08F4/6592C08F210/16
    • PROBLEM TO BE SOLVED: To provide a manufacturing method for an ethylene copolymer composition from which a film being excellent in moldability, and transparency and mechanical strengths, can be produced.
      SOLUTION: A multi-stage manufacturing method for an olefin comprises the following steps [I] and [II]. The step [I] comprises copolymerizing ethylene and an α-olefin in the presence of a catalyst [d-1] carrying M
      1 L
      1
      x [wherein M
      1 is a group IVb transition metal; and at least two of L
      1 are each a Cp group (means a cyclopentadienyl group) or a 1-10C hydrocarbon group-substituted Cp group] and [b] an organic aluminumoxy compound, or the like, on [c] a carrier to produce a copolymer (A). The step [II] comprises copolymerizing the ethylene, or the ethylene and the α-olefin in the presence of the above (A) and adding a catalyst [d-2] carrying M
      2 L
      2
      x or M
      3 L
      3
      x (wherein M
      2 and M
      3 are each the group IVb transition metal; L
      2 is a crosslinking type Cp group, and at least two of L
      3 are each a Cp group having 2-5 of an Me group (Me means a methyl group) or an Et group (Et means an ethyl group) on [c] the carrier to produce a copolymer (B).
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种乙烯共聚物组合物的制造方法,由此可以制备成型性优异的膜,并且具有机械强度。 解决方案:用于烯烃的多级制备方法包括以下步骤[I]和[II]。 步骤[I]包括在载体为M 1 SP 1 / SP SP 1的催化剂[d-1]存在下共聚乙烯和α-烯烃 >其中M 1 是IVb族过渡金属; 并且L 1 中的至少两个各自为Cp基(意指环戊二烯基)或1-10C烃基取代的Cp基]和[b]有机铝氧基化合物等, 在[c]载体上制备共聚物(A)。 步骤[II]包括在上述(A)的存在下使乙烯或乙烯与α-烯烃共聚,并加入载有M 2的催化剂[d-2] 2 x 或M 3 L 3 x (其中M 2 和M 3 分别为IVb族过渡金属; L 2 为交联型Cp基团,L 3 中的至少两个为 每个具有2-5个Me基团(Me表示甲基)或Et基团(Et表示乙基)的Cp基团在[c]载体上以产生共聚物(B)。版权所有(C) C)2004,JPO
    • 43. 发明专利
    • Method for producing ethylenic polymer composition, particle of the ethylenic polymer composition, and film obtained from the particle of the composition
    • 乙烯聚合物组合物的生产方法,乙烯聚合物组合物的颗粒和由组合物颗粒获得的膜
    • JP2003012712A
    • 2003-01-15
    • JP2002119418
    • 2002-04-22
    • Mitsui Chemicals Inc三井化学株式会社
    • TSUTSUI TOSHIYUKIYASHIKI TSUNEOFUNAHARA YASUO
    • C08J5/18C08F2/44C08F4/658C08F210/16C08F255/02
    • PROBLEM TO BE SOLVED: To obtain an ethylenic polymer composition (particles) excellent in particle properties, scarcely causing sintering, and excellent in moldabitity, to provide a method for efficiently producing the particles of the composition, and to prepare a film having small unevenness of thickness and excellent in tear strength. SOLUTION: This method for producing the ethylenic polymer composition comprises using a catalyst which contains a component obtained by bringing a liquid magnesium compound into contact with a liquid titanium compound in the presence of an organic silicon compound, and further includes (I) a process for producing an ethylene (co)polymer (i) the intrinsic viscosity ([η]) of which is at least 1.5 times the [η] of an ethylene (co)polymer (ii) and (II) a process for producing the ethylene (co)polymer (ii) the [η] of which is 0.3-3 dl/g, wherein the process (II) is conducted in the presence of the polymer (i), or the process (I) is conducted in the presence of the polymer (ii), so that the ethylenic polymer composition having an [η] of 1-6 dl/g and a density of >=0.94 g/cm is produced.
    • 要解决的问题为了获得颗粒性能优异,几乎不引起烧结并且具有优异的成型性的乙烯聚合物组合物(颗粒),可以提供有效地制备组合物颗粒的方法,并制备具有小的不均匀性的膜 厚度和撕裂强度优异。 解决方案:用于制备乙烯类聚合物组合物的方法包括使用含有在有机硅化合物存在下使液态镁化合物与液体钛化合物接触而获得的成分的催化剂,还包括(I) 产生乙烯(共)聚合物(i)其特性粘度([η])至少为乙烯(共)聚合物(ii)的[η]的1.5倍和(II)乙烯的制备方法 共聚)聚合物(ⅱ)[η]为0.3-3dl / g,其中方法(II)在聚合物(i)的存在下进行,或者方法(I)在 聚合物(ⅱ),使得[η]为1-6dl / g,密度> 0.94g / cm 3的乙烯类聚合物组合物。