Process for Preparing a Chromium-Based Catalyst for the Polymerization and/or Copolymerization of Olefins
    32.
    发明申请
    Process for Preparing a Chromium-Based Catalyst for the Polymerization and/or Copolymerization of Olefins 有权
    制备用于烯烃聚合和/或共聚的铬基催化剂的方法

    公开(公告)号:US20080051532A1

    公开(公告)日:2008-02-28

    申请号:US11628827

    申请日:2005-06-09

    Abstract: Process for preparing a supported catalyst for the polymerization and/or copolymerization of olefins which has a chromium content of from 0.01 to 5% by weight, based on the element, which comprises (a) preparing a homogeneous solution comprising an organic or inorganic chromium compound and at least one further organic or inorganic compound of elements selected from among Mg, Ca, Sr, B, Al, Si, P, Bi, Sc, V, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Hf, Ta, W in a protic or aprotic polar solvent, (b) bringing the solution from a) into contact with a finely divided inorganic support to form a catalyst precursor, (c) if appropriate, removing the solvent from the catalyst precursor and (d) calcining the catalyst precursor at temperatures of from 350 to 950° C., preferably 400 to 900° C., under oxidative conditions.

    Abstract translation: 制备用于烯烃聚合和/或共聚的负载催化剂的方法,该催化剂的铬含量为0.01至5重量%,基于该元素,其包括(a)制备包含有机或无机铬化合物的均匀溶液 以及选自Mg,Ca,Sr,B,Al,Si,P,Bi,Sc,V,Mn,Fe,Co,Ni,Cu,Zn,Zr,Nb中的至少一种有机或无机化合物, Mo,Ru,Rh,Pd,Hf,Ta,W在质子或非质子极性溶剂中,(b)使来自a)的溶液与细碎的无机载体接触以形成催化剂前体,(c) 从催化剂前体中除去溶剂,和(d)在氧化条件下,在350-950℃,优选400-900℃的温度下煅烧催化剂前体。

    Catalyst systems of the ziegler-natta type and a method for production thereof
    33.
    发明申请
    Catalyst systems of the ziegler-natta type and a method for production thereof 审中-公开
    齐格勒 - 纳塔型催化剂体系及其生产方法

    公开(公告)号:US20050075241A1

    公开(公告)日:2005-04-07

    申请号:US10399232

    申请日:2001-10-18

    CPC classification number: C08F10/00 C08F4/6555

    Abstract: A method for production of catalytic systems of the Ziegler-Natta type is characterised in comprising the following steps: A) bringing an inorganic metal oxide and a magnesium compound of formula MgRnX2-n into contact, where X=independently, fluorine, chlorine, bromine, iodine, hydrogen, NR2, OR, SR, SO3R or OC(O)R and R=independently, C1-C20 linear, branched, or cyclic alkyl, a C2-C10 alkenyl, an alkylaryl with 1-10 C atoms in the alkyl group and 6-20 C atoms in the aryl group, or a C6-C18 aryl and n=1 or 2, then, B) bringing the intermediate product obtained in step A) into contact with a halogenating reagent, C) bringing the intermediate product obtained in step B) into contact with a) a tetravalent titanium compound, b) a metallo-organic compound of group 3 of the periodic system and c) optionally, an electron-donor compound and D) washing the product obtained in step C) with an aprotic solvent. The invention further relates to a catalytic system obtained as above and a method for the polymerisation of olefins.

    Abstract translation: 一种齐格勒 - 纳塔型催化体系的制备方法,其特征在于包括以下步骤:A)使式MgRnX2-n的无机金属氧化物和镁化合物接触,其中X独立地为氟,氯,溴 ,碘,氢,NR 2,OR,SR,SO 3 R或OC(O)R和R独立地为C 1 -C 20直链,支链或环状烷基,C 2 -C 10烯基,具有1-10个C原子的烷基芳基 烷基和芳基中的6-20个C原子,或C 6 -C 18芳基,n = 1或2,然后B)将步骤A)中得到的中间产物与卤化试剂接触,C) 步骤B)中获得的中间产物与a)四价钛化合物接触,b)周期性体系的第3族金属有机化合物,和c)任选的电子给体化合物,和D)洗涤步骤 C)与非质子溶剂。 本发明还涉及如上所述获得的催化体系和烯烃聚合方法。

    Low-odor polyethylene blends
    35.
    发明授权
    Low-odor polyethylene blends 失效
    低气味聚乙烯混合物

    公开(公告)号:US06462135B1

    公开(公告)日:2002-10-08

    申请号:US09743923

    申请日:2001-01-17

    Abstract: In a low-odor polyethylene blend made from a high-molecular-weight ethylene copolymer obtainable by polymerization in the presence of a Ziegler catalyst and from a low-molecular-weight ethylene homopolymer or ethylene copolymer obtainable by polymerization in the presence of a chromocene catalyst on an oxidic support, the Al content of the high-molecular-weight component is from 5 to 60 mg/kg, the Al content of the low-molecular-weight component is from 0 to 5 mg/kg and the Al content of the blend is from 1 to 55 mg/kg. Processes are described for preparing blends of this type. Their use is described for producing moldings, in particular hollow articles and pipes. Moldings, in particular hollow articles and pipes, are produced from low-odor polyethylene blends.

    Abstract translation: 在由可在齐格勒催化剂存在下聚合得到的高分子量乙烯共聚物和可通过在色烯催化剂存在下聚合得到的低分子量乙烯均聚物或乙烯共聚物制成的低气味聚乙烯共混物 在氧化载体上,高分子量成分的Al含量为5〜60mg / kg,低分子量成分的Al含量为0〜5mg / kg,Al 共混物为1至55mg / kg。 描述了制备这种类型的共混物的方法。 它们的用途描述用于生产模制品,特别是中空制品和管道。 木制品,特别是中空制品和管道,由低气味聚乙烯混合物制成。

    High molecular weight homopolymers and copolymers of ethene
    36.
    发明授权
    High molecular weight homopolymers and copolymers of ethene 失效
    乙烯的高分子量均聚物和共聚物

    公开(公告)号:US5756627A

    公开(公告)日:1998-05-26

    申请号:US954429

    申请日:1992-09-30

    CPC classification number: C08F10/00 C08F110/02

    Abstract: The present invention relates to high molecular weight homopolymers and copolymers of ethene, which homopolymer or copolymer is obtained by polymerizing the monomer(s) at a temperature of from 70.degree. to 150.degree. C. and under a pressure of from 2 to 150 bar in contact witha chromium trioxide catalyst, (1) loading a support based on silicon dioxide with (2) either chromium trioxide or a chromium compound capable of being converted to chromium trioxide under the conditions of stage (3) below and then (3) heating the resulting intermediate in a gas stream containing oxygen, the support (1) being a special silica xerogel obtained by extracting not more than 30% of the water from a silica hydrogel by means of an alkanol, an alkanone or a mixture thereof followed by drying, comminution and fractional screening.

    Abstract translation: 本发明涉及乙烯的高分子量均聚物和共聚物,其均聚物或共聚物是通过在70℃至150℃的温度和2至150巴的压力下将单体聚合而获得的 与三氧化铬催化剂接触,(1)在下述阶段(3)的条件下,将(2)三氧化铬或能够转化成三氧化铬的铬化合物(2)加载基于二氧化硅的载体,然后(3)加热 在含有氧的气流中产生中间体,所述载体(1)是通过使用烷醇,烷酮或其混合物从二氧化硅水凝胶中提取不超过30%的水而获得的特殊二氧化硅干凝胶,然后干燥, 粉碎和分数筛选。

    Phillips catalyst and its use for the preparation of
ethylene/alpha-olefin copolymers
    37.
    发明授权
    Phillips catalyst and its use for the preparation of ethylene/alpha-olefin copolymers 失效
    菲利普斯催化剂及其用于制备乙烯/α-烯烃共聚物的用途

    公开(公告)号:US5480852A

    公开(公告)日:1996-01-02

    申请号:US247479

    申请日:1994-05-23

    CPC classification number: C08F10/00

    Abstract: A novel Phillips catalyst for the copolymerization of ethylene with .alpha.-olefins, contains, as a catalytically active component, a finely divided, aluminum silicate-supported, phosphorus-containing chromium catalyst. This can be prepared by applying at least one organic phosphorus(III), (IV) and/or (V) compound and at least one chromium(III) compound which does not react with said phosphorus compounds under the reaction conditions used, in succcession in any order or simultaneously, to a finely divided aluminum silicate hydrogel or xerogel with formation of a catalyst intermediate and activating the catalyst intermediate at elevated temperatures in an oxidizing atmosphere, with the result that the chromium catalyst is formed. The novel Phillips catalyst gives ethylene/.alpha.-olefin copolymers in which the comonomers are more uniformly distributed over the copolymer chains than is the case with ethylene/.alpha.-olefin copolymers which have been prepared with the aid of conventional Phillips catalysts. Moldings which have been produced from the ethylene/.alpha.-olefin copolymers obtained in the novel procedure have a particularly high environmental stress cracking resistance and an excellent creep rupture strength.

    Abstract translation: 用于乙烯与α-烯烃共聚的新颖的菲利普斯催化剂包含作为催化活性组分的细碎的含硅酸铝载体的含磷的铬催化剂。 这可以通过在所用的反应条件下施用至少一种不与所述磷化合物反应的有机磷(III),(IV)和/或(V)化合物和至少一种铬(III)化合物来制备, 以任何顺序或同时的方式,在形成催化剂中间体的细分的硅酸铝水凝胶或干凝胶中,并在氧化气氛中在高温下活化催化剂中间体,结果形成铬催化剂。 新型菲利普斯催化剂提供了乙烯/α-烯烃共聚物,其中共聚单体比共聚物链更均匀地分布在使用常规菲利普斯催化剂制备的乙烯/α-烯烃共聚物的情况下。 由新方法得到的乙烯/α-烯烃共聚物制成的成型品具有特别高的耐环境应力开裂性和优异的抗蠕变断裂强度。

    Preparation of homopolymers and copolymers of .alpha.-monolefins using a
Ziegler catalyst system
    39.
    发明授权
    Preparation of homopolymers and copolymers of .alpha.-monolefins using a Ziegler catalyst system 失效
    使用齐格勒催化剂体系制备α-烯烃的均聚物和共聚物

    公开(公告)号:US4705835A

    公开(公告)日:1987-11-10

    申请号:US876298

    申请日:1986-06-18

    CPC classification number: C08F10/00

    Abstract: .alpha.-Monoolefins are polymerized using a Ziegler catalyst system comprising (1) a transition metal catalyst component and (2) an organoaluminum catalyst component, in which (1) is a solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxidic substance (I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) an organic solvent and (IIb) a transition metal composition to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the solid-phase intermediate (IV), obtained from (1.1), with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase product (VI) being the transition metal catalyst component (1). The characteristic feature is that (1) is a solid-phase product (VI) obtained using a solution (II) consisting of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide and (IIb3) a zirconium tetrahalide.

    Abstract translation: α-烯烃使用齐格勒催化剂体系进行聚合,该齐格勒催化剂体系包含(1)过渡金属催化剂组分和(2)有机铝催化剂组分,其中(1)是通过(1.1)获得的固相产物(VI) 1.1.1)作为载体的无机氧化物质(I)与(1.1.2)由(IIa)有机溶剂组成的溶液(II)和(IIb)形成悬浮液(III)的过渡金属组合物, 将该悬浮液蒸发以形成固相中间体(IV),和(1.2)然后(1.2.1)将由(1.1)获得的固相中间体(IV)与(1.2.2)得到的溶液 的有机铝化合物(V)以形成悬浮液,所得到的悬浮固相产物(VI)是过渡金属催化剂组分(1)。 其特征在于,(1)是使用由(IIa)某一氧杂烃和(IIb)(IIb1)三氯化钒/醇络合物的混合物(IIa)组成的溶液(II)获得的固相产物(VI) IIb2)三卤化钛和(IIb3)四卤化锆。

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