Process for the (co)polymerization of ethylene
    1.
    发明授权
    Process for the (co)polymerization of ethylene 有权
    乙烯(共)聚合的方法

    公开(公告)号:US07678867B2

    公开(公告)日:2010-03-16

    申请号:US10581983

    申请日:2004-11-24

    摘要: A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which: in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2═CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).

    摘要翻译: 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法,包括(i)包含Mg,Ti,卤素和任选的内电子给体化合物的固体催化剂组分,和(ii)Al-烷基助催化剂 所述方法包括至少两个聚合步骤(a)和(b)),其中:在第一步(a)中,在分子量调节剂存在下使乙烯聚合以产生乙烯(共)聚合物,和 在另外的步骤(b)中,其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物的存在下进行,乙烯与式CH2 = CHR的α-烯烃共聚,其中R是C1 -C 20烃基,得到分子量高于步骤(b)中制备的共聚物的乙烯共聚物。

    Process for the (Co) Polymerization of Ethylene
    2.
    发明申请
    Process for the (Co) Polymerization of Ethylene 有权
    乙烯(Co)聚合方法

    公开(公告)号:US20070282083A1

    公开(公告)日:2007-12-06

    申请号:US10581983

    申请日:2004-11-24

    摘要: A process for preparing a broad molecular weight polyethylene carried out in the presence of a catalyst system comprising (i) a solid catalyst component comprising Mg, Ti, halogen, and optionally an internal electron donor compound, and (ii) an Al-alkyl cocatalyst said process comprising at least two step of polymerization (a) and (b), in which: in a first step (a) ethylene is polymerized in the presence of a molecular weight regulator in order to produce a ethylene (co)polymer, and in a further step (b), which is carried out in the presence of an external electron donor compound added to this polymerization step as a fresh reactant, ethylene is copolymerized with an alpha olefin of formula CH2═CHR, in which R is a C1-C20 hydrocarbon group, to produce an ethylene copolymer having a molecular weight higher than that of the copolymer produced in step (b).

    摘要翻译: 一种制备在催化剂体系存在下进行的宽分子量聚乙烯的方法,包括(i)包含Mg,Ti,卤素和任选的内电子给体化合物的固体催化剂组分,和(ii)Al-烷基助催化剂 所述方法包括至少两个聚合步骤(a)和(b)),其中:在第一步(a)中,在分子量调节剂存在下使乙烯聚合以产生乙烯(共)聚合物,和 在另外的步骤(b)中,其在作为新的反应物加入到该聚合步骤中的外部电子给体化合物的存在下进行,乙烯与式CH 2 -CHR的α-烯烃共聚,其中R是C1 -C 20烃基,得到分子量高于步骤(b)中制备的共聚物的乙烯共聚物。

    Catalyst components for the polymerization of olefins
    6.
    发明授权
    Catalyst components for the polymerization of olefins 有权
    用于烯烃聚合的催化剂组分

    公开(公告)号:US08835578B2

    公开(公告)日:2014-09-16

    申请号:US13579027

    申请日:2011-02-22

    IPC分类号: C08F4/649 C08F110/06

    摘要: Catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and two electron donor compounds one of which selected from alkoxybenzenes and the other being selected from those of formula (II) where RI and RII are the same or different and are hydrogen or linear or branched C1-C18 hydrocarbon groups which can also form one or more cyclic structures; RIII groups, equal or different from each other, are hydrogen or C1-C18 hydrocarbon groups; RIV groups equal or different from each other, have the same meaning of RIII except that they cannot be hydrogen; each of RI to RIV groups can contain heteroatoms selected from halogens, N, O, S and Si.

    摘要翻译: 用于烯烃CH 2 = CHR聚合的催化剂组分,其中R是氢或具有1-12个碳原子的烃基,包括Mg,Ti,卤素和两种电子给体化合物,其中一种选自烷氧基苯,另一种选自那些 其中R 1和R II相同或不同,为氢或可以形成一个或多个环状结构的直链或支链C 1 -C 18烃基; 相同或不同的RIII基团是氢或C 1 -C 18烃基; RIV基团相同或不同,具有与RIII相同的含义,不同之处在于它们不能是氢; 每个RI至RIV基团可以含有选自卤素,N,O,S和Si的杂原子。

    Method for preparing a Ziegler-Natta catalyst
    9.
    发明授权
    Method for preparing a Ziegler-Natta catalyst 有权
    齐格勒 - 纳塔催化剂的制备方法

    公开(公告)号:US07935651B1

    公开(公告)日:2011-05-03

    申请号:US12658191

    申请日:2010-02-04

    IPC分类号: B01J31/00 B01J21/00 C08F4/44

    摘要: A method for preparing a titanium-containing Ziegler-Natta catalyst is disclosed. A dialkyl magnesium compound, a trialkyl aluminum compound, and a polymethylhydrosiloxane are first combined in a hydrocarbon solvent. That product is then combined with dry, alcohol-free magnesium chloride. A solid product from the reaction with the magnesium chloride component is isolated and washed with a hydrocarbon solvent. The washed solid product is then combined with an alkyl aluminum dichloride or a dialkyl aluminum chloride to give the catalyst. The catalyst is suitable for both slurry and gas-phase olefin polymerizations. Polyolefins produced with the catalyst have broad molecular weight distributions and narrow distributions of relatively large particles.

    摘要翻译: 公开了一种制备含钛齐格勒 - 纳塔催化剂的方法。 首先在烃溶剂中合并二烷基镁化合物,三烷基铝化合物和聚甲基氢硅氧烷。 然后将该产物与干燥的不含醇的氯化镁混合。 分离与氯化镁组分反应的固体产物,并用烃溶剂洗涤。 然后将洗涤的固体产物与二氯化烷基铝或二烷基氯化铝混合,得到催化剂。 该催化剂适用于淤浆和气相烯烃聚合。 用催化剂生产的聚烯烃具有较宽的分子量分布和较大颗粒的窄分布。