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    • 25. 发明授权
    • Multi-stage process for the preparation of &agr;-olefin polymers having controlled stereoregularity and products prepared thereof
    • 用于制备具有受控的立构规整性的α-烯烃聚合物的多阶段方法及其制备的产物
    • US06576710B1
    • 2003-06-10
    • US09890796
    • 2001-09-26
    • Päivi HuovinenPauli LeskinenThomas Garoff
    • Päivi HuovinenPauli LeskinenThomas Garoff
    • C08L2300
    • C08F10/06C08F10/00C08F110/06C08F4/642C08F4/6465C08F4/6492C08F2/001C08F2500/12
    • The invention relates to the preparation of an &agr;-olefin polymer product having controlled stereoregularity, comprising the successive step of: (i) producing a first polymerization product by contacting under polymerization conditions an &agr;-olefin monomer with a polymerization catalyst system comprising a transition metal compound, a first organometal compound and a stereoregulating external electron donor to give a first polymerization reaction mixture; (ii) producing a second polymerization product by contacting additional &agr;-olefin monomer with the first polymerization reaction mixture. The controlled stereoregularity is achieved in such a way that in step (ii) the second polymerization product is produced in the presence of a stereoregularity controlling agent. The stereoregularity controlling agent e.g. a second organometal compound which contains, on an atom basis, more halogen per metal than the first organometal compound, or 0.01-1.2 % of an olefin which is not said &agr;-olefin monomer, calculated on the total molar amount of olefin and &agr;-olefin monomer.
    • 本发明涉及具有受控立构规整性的α-烯烃聚合物产物的制备,其包括以下连续步骤:(i)通过在聚合条件下使α-烯烃单体与包含过渡金属的聚合催化剂体系接触来制备第一聚合产物 化合物,第一有机金属化合物和立体调节外电子给体,得到第一聚合反应混合物; (ii)通过使附加的α-烯烃单体与第一聚合反应混合物接触而产生第二聚合产物。 控制的立构规整性以这样的方式实现:在步骤(ii)中,第二聚合产物是在立体规则性控制剂的存在下制备的。 立构规整性控制剂例如 第二有机金属化合物,其以原子计含有比第一有机金属化合物更多的卤素/金属,或0.01-1.2%的不是所述α-烯烃单体的烯烃,以烯烃和α-烯烃的总摩尔量计算, 烯烃单体。
    • 26. 发明授权
    • Process for the preparation of repolymerized catalyst composition and a
process for polymerizing .alpha.-olefins
    • 制备再聚合催化剂组合物的方法和聚合α-烯烃的方法
    • US6040260A
    • 2000-03-21
    • US876442
    • 1997-06-16
    • Ismo PenttiPauli Leskinen
    • Ismo PenttiPauli Leskinen
    • C08F4/609C08F4/64C08F4/654C08F10/00C08F110/06
    • C08F10/00C08F110/06Y10S526/903Y10S526/904
    • The present invention concerns prepolymerized catalyst composition for polymerization of .beta.-olefins, a process for the preparation thereof and a process for polymerization of .beta.-olefins. According to the polymerization process a procatalyst composition containing a transition metal is prepolymerized with a monomer in order to produce a prepolymerized Ziegler-Natta type catalyst composition and said catalyst composition is contacted with an alpha-olefin monomer, in particular with ethylene or propylene, for preparing a polymer. According to the invention the procatalyst composition is preferably prepolymerized in a medium which is inert to the catalyst components, the viscosity of the medium being so high that the catalyst does not substantially settle in this medium. Because the catalyst composition according to the invention does not have to be dried before being fed into the medium, its activity is high before and during polymerization.
    • 本发明涉及用于聚合β-烯烃的预聚合催化剂组合物,其制备方法和β-烯烃聚合方法。 根据聚合方法,将含有过渡金属的原料催化剂组合物与单体预聚合以制备预聚合的齐格勒 - 纳塔型催化剂组合物,并将所述催化剂组合物与α-烯烃单体,特别是与乙烯或丙烯接触,用于 制备聚合物。 根据本发明,原催化剂组合物优选在对催化剂组分是惰性的介质中预聚合,介质的粘度如此之高,使得催化剂基本上不会沉淀在该介质中。 因为根据本发明的催化剂组合物在进料到介质中之前不必被干燥,因此在聚合之前和聚合过程中其活性很高。
    • 27. 发明授权
    • Method for the dosage of a fluidized polymerization catalyst into a
polymerization reactor
    • 流化聚合催化剂进入聚合反应器的方法
    • US5385992A
    • 1995-01-31
    • US119150
    • 1993-10-26
    • Jukka KoskinenKlaus NyforsPauli Leskinen
    • Jukka KoskinenKlaus NyforsPauli Leskinen
    • B01J8/24B01J8/00C08F2/00C08F2/14F04B7/06
    • B01J8/003B01J8/002B01J8/0035F04B7/06
    • A method is provided for controlling the dosage of a fluidized polymerizing catalyst into a polymerization reactor. The method comprises mixing a solid polymerization catalyst with wax and feeding the flowing catalyst-wax mixture through a pipe to the dosage pump. The inlet opening of the cylinder of the dosage pump is opened to draw catalyst-wax mixture through the inlet opening by means of the back motion of the piston. The inlet opening is then closed and the outlet opening is opened. Flowing catalyst-wax mixture is then pressed from the cylinder through the outlet opening by means of the back motion of the piston. The outlet opening is then closed. Opening and closing of the inlet and outlet openings is carried out by rotating an intermediate pipe arranged between the cylinder and piston so that a transmission opening in the intermediate pipe moves upon either the inlet or outlet opening. The intermediate pipe surface always covers at least one of the inlet or outlet openings.
    • PCT No.PCT / FI92 / 00080 Sec。 371日期:1993年10月26日 102(e)日期1993年10月26日PCT 1991年3月20日PCT公布。 第WO92 / 16747号公报 日期为1992年10月1日。提供了一种控制流化聚合催化剂进入聚合反应器的剂量的方法。 该方法包括将固体聚合催化剂与蜡混合,并将流动的催化剂 - 蜡混合物通过管道送入剂量泵。 剂量泵的气缸的入口打开,通过活塞的反向运动通过进口开启催化剂 - 蜡混合物。 然后关闭入口,并打开出口。 然后通过活塞的反向运动,将流动的催化剂 - 蜡混合物从汽缸压出出口。 然后关闭出口。 通过旋转布置在气缸和活塞之间的中间管来进行入口和出口的打开和关闭,使得中间管中的传动开口在入口或出口开口上移动。 中间管表面总是覆盖入口或出口中的至少一个。
    • 29. 发明申请
    • METHOD FOR IMPROVING FLOWABILITY OF HETEROPHASIC POLYPROPYLENE POWDER
    • 改善异丙基聚丙烯粉末流动性的方法
    • US20110294940A1
    • 2011-12-01
    • US12998704
    • 2009-11-18
    • Pauli LeskinenOlli TuominenVeli-Matti Keinänen
    • Pauli LeskinenOlli TuominenVeli-Matti Keinänen
    • C08L23/12C08K3/34C08F2/01C08L23/16
    • C08F255/02B01J8/24B01J19/2435B01J2219/0004C08F110/06C08F210/06C08F297/083C08K3/34C08L23/12C08L23/16C08L51/06C08L2207/02C08L2308/00C08L2314/02C08F2/001C08L2666/06C08L2666/02C08F210/16C08F2500/17C08F2500/18C08F2500/24
    • Method for the preparation of a sticky high impact heterophasic polypropylene (HECO) in a reactor facility comprising in series (i) a first reaction system, (ii) a first conveying line connecting the first reactor system with a second reactor system comprising an outlet, (iii) a second conveying line connecting the outlet with a purge bin comprising a feeder, and (iv) a conveying system being connected with the feeder, and the preparation of said heterophasic polypropylene (HECO) comprises the steps in the order of (a) producing in said first reactor system the polypropylene matrix (M), (b) transferring at least a part of said polypropylene to said second reactor system via the first conveying line, (c) producing in said second reactor system the elastomeric copolymer obtaining the heterophasic polypropylene (HECO), (d) discharging said heterophasic polypropylene (HECO) from said second reactor system via the outlet, (e) transferring said discharged heterophasic polypropylene (HECO) via the second conveying line to said purge bin comprising said feeder, and (f) transferring further said discharged heterophasic polypropylene (HECO) from said purge bin via said feeder to said conveying system, the produced heterophasic polypropylene (HECO) is provided with an additive, said additive is fed to the produced heterophasic polypropylene (α) at the outlet of the second reactor system, or (β) at the feeder (F) of the purge bin (PB).
    • 在反应器设备中制备粘性高冲击多相聚丙烯(HECO)的方法,其包括串联(i)第一反应体系,(ii)将第一反应器系统与包含出口的第二反应器系统连接的第一输送管线, (iii)将出口连接到包括进料器的净化箱的第二输送管线,以及(iv)与进料器连接的输送系统,并且所述多相聚丙烯(HECO)的制备包括以下步骤:(a )在所述第一反应器系统中生产所述聚丙烯基质(M),(b)经由所述第一输送管线将至少一部分所述聚丙烯转移到所述第二反应器系统,(c)在所述第二反应器系统中产生所述弹性共聚物, 多相聚丙烯(HECO),(d)通过出口从所述第二反应器系统排出所述多相聚丙烯(HECO),(e)将所述排出的异相聚丙烯(HECO)vi 第二输送管线到包括所述进料器的清洗箱,和(f)将所述排出的多相聚丙烯(HECO)从所述进料槽经由所述进料器进一步传送到所述输送系统,所生产的异相聚丙烯(HECO)具有添加剂 ,所述添加剂在第二反应器系统的出口处供给到生产的异相聚丙烯(α),或者在清洗箱(PB)的进料器(F)处进料。