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    • 5. 发明授权
    • Ultra-high-molecular-weight polyethylene solution
    • 超高分子量聚乙烯溶液
    • US4767819A
    • 1988-08-30
    • US70545
    • 1987-07-07
    • Shigeki YokoyamaMichiaki ToriiKazuo MatsuuraAkira Sano
    • Shigeki YokoyamaMichiaki ToriiKazuo MatsuuraAkira Sano
    • C08L23/04C08J3/09C08L23/00C08L91/00C10G67/06D01F6/04C08L23/06
    • D01D1/02C08J3/092C10G67/06D01F6/04C08J2323/06
    • The present invention provides an ultra-high-molecular-weight polyethylene solution which is produced by the steps of subjecting a kerosene fraction having a boiling point of 160.degree. to 300.degree. C. to a nucleus hydrogenation treatment at a pressure of 30 to 100 kg/cm.sup.2 at a temperature of 100.degree. to 300.degree. C. in the presence of a metallic catalyst for nucleus hydrogenation of aromatic nuclei; separating and removing at least a part of n-paraffins present in the kerosene therefrom by the use of a molecular sieve made up of a synthesized zeolite in order to obtain a residual oil; fractionating the latter by a rectification apparatus to obtain a hydrocarbon mixture fraction which has a boiling point of 180.degree. to 250.degree. C. and which is substantially free from naphthalene and biphenyl; and dissolving, in the hydrocarbon mixture fraction, an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 8 or more in decalin at 135.degree. C.
    • 本发明提供了一种超高分子量聚乙烯溶液,其通过以下步骤制备:使沸点为160〜300℃的煤油馏分在30〜100kg的压力下进行核氢化处理 在金属催化剂存在下,在100〜300℃的温度下,芳族核的核氢化; 通过使用由合成沸石构成的分子筛分离和除去存在于煤油中的至少一部分正链烷烃,以获得残油; 通过精馏装置对后者进行分馏,得到沸点为180-250℃,基本上不含萘和联苯的烃混合物馏分; 并在烃混合物馏分中,在135℃下在十氢化萘中溶解特性粘度为8以上的超高分子量聚乙烯。
    • 6. 发明授权
    • Olefin polymerization catalyst and process for preparing polyolefins
    • 烯烃聚合催化剂和制备聚烯烃的方法
    • US6077804A
    • 2000-06-20
    • US858120
    • 1997-05-19
    • Yoshio TajimaNaoki KataokaAkira SanoKazuo Matsuura
    • Yoshio TajimaNaoki KataokaAkira SanoKazuo Matsuura
    • C08F4/642C08F4/60C08F4/652C08F4/658C08F4/659C08F4/6592C08F10/00
    • C08F10/00C08F4/65904C08F4/65912C08F4/65916C08F4/6592
    • According to the present invention, there are provided a catalyst and a process for the preparation of polyolefins having a relatively wide molecular weight distribution, good particle properties, a narrow composition distribution in copolymerization and a high molecular weight and being less sticky. The catalyst is prepared by contacting the following constituents (1) to (4) with one another:(1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sub.4-p-q, where Me.sup.1 is Zr, Ti or Hf, R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X is a halogen atom, p and q are each an integer in the ranges of 0.ltoreq.p.ltoreq.4 and 0.ltoreq.q.ltoreq.4 , provided 0.ltoreq.p+q.ltoreq.4;(2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, where Me.sup.2 is a Group I-III element in the Periodic Table, R.sup.3 and R.sup.4 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X.sup.2 is a halogen atom or a hydrogen atom, provided when X.sup.2 is a hydrogen atom, Me.sup.2 is a Group III element in the Periodic Table, z is the valence of Me.sup.2, m and n are each an integer in the ranges of 0.ltoreq.m.ltoreq.z, and 0.ltoreq.n.ltoreq.z, provided 0.ltoreq.m+n.ltoreq.z;(3) an organocyclic compound having conjugated double bonds; and(4) a modified organoaluminum compound containing Al--O--Al bond, and thereafter contacting the resulting contact reaction product with the following component (5):(5) an inorganic carrier and/or a particulate polymer carrier.
    • 根据本发明,提供了一种催化剂和制备具有较宽分子量分布,良好的颗粒性能,窄的共聚合成分布和高分子量且不易粘的聚烯烃的方法。 通过使下述成分(1)〜(4)彼此接触来制备催化剂:(1)由通式Me1R1p(OR2)qX4-pq表示的化合物,其中Me1为Zr,Ti或Hf,R1和R2 各自独立地为具有1〜24个碳原子的烃基,X为卤素原子,p和q各自为0≤p≤4且0≤q≤4的整数, 提供0
    • 9. 发明授权
    • Catalyst for preparing polyolefins
    • 制备聚烯烃的催化剂
    • US5506183A
    • 1996-04-09
    • US287710
    • 1994-08-09
    • Akira SanoTakeichi ShiraishiSinichi YanahashiHiroyuki ShimizuKazuo Matsuura
    • Akira SanoTakeichi ShiraishiSinichi YanahashiHiroyuki ShimizuKazuo Matsuura
    • C08F4/658C08F4/60C08F4/656C08F10/00C08F4/654
    • C08F10/00
    • Polyolefins having better particle properties are obtained by polymerizing olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, the said solid catalyst component being prepared by reacting the following components [I] and [II] and further reacting the resulting reaction product with the following component [III]:[I] a reaction product obtained by reacting:(1) a silicon oxide and/or an aluminum oxide, and(2) a titanium compound, or a titanium compound and a vanadium compound, and further reacting the resulting reaction product with:(3) an organoaluminum compound;[II] a reaction product obtained by the reaction of:(1) a magnesium halide, and(2) a compound represented by the general formula Me(OR).sub.n X.sub.z-n wherein Me represents an element of Groups I to IV in the Periodic Table, z represents the valence of the element Me, n is 0
    • 具有更好颗粒性能的聚烯烃通过在包含固体催化剂组分和有机金属化合物的催化剂存在下聚合烯烃获得,所述固体催化剂组分通过使以下组分[I]和[II]反应制备,并进一步使所得 反应产物与以下组分[III]反应:[I]通过使(1)氧化硅和/或氧化铝反应获得的反应产物,和(2)钛化合物或钛化合物和钒化合物, 并进一步使所得反应产物与以下物质反应:(3)有机铝化合物; [II]通过以下反应获得的反应产物:(1)卤化镁和(2)由通式Me(OR)n Xz-n表示的化合物,其中Me表示周期表中第I至IV族的元素 表中,z表示元素Me的化合价,n为0
    • 10. 发明授权
    • Process for preparing polyolefins
    • 聚烯烃的制备方法
    • US5432236A
    • 1995-07-11
    • US198909
    • 1994-02-18
    • Akira SanoKunimichi KuboKazuo Matsuura
    • Akira SanoKunimichi KuboKazuo Matsuura
    • C08F2/34C08F4/642C08F10/00
    • C08F10/00Y10S526/901Y10S526/908
    • According to the present invention, in a vapor phase polymerization of olefins, there is provided an efficient polyolefin manufacturing process capable of preventing the formation of a sheet-like polymer and allowing an olefin polymerization reaction to be started stably. More particularly, there is provided a process of preparing a polyolefin by homopolymerizing or copolymerizing an olefin or olefins substantially in a vapor phase condition and in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, the solid catalyst component containing magnesium, one or more elements selected from titanium and vanadium and also containing halogen, wherein, in feeding the catalyst into a reactor the interior of which is held substantially in a vapor phase condition, in the presence of a polyolefin serving as a medium for dispersing the catalyst and in a state not substantially inducing a polymerization reaction in the presence of only the said polyolefin serving as the said medium, to start homopolymerization or copolymerization of the olefin(s), a solid catalyst component satisfying the above condition and having an average particle diameter substantially larger than that of the solid catalyst component to be used in a principal stage of the polymerization reaction is used at least until an olefin homopolymer or copolymer is formed in an amount equal to the amount of the polyolefin used as the catalyst dispersing medium.
    • 根据本发明,在烯烃的气相聚合中,提供了能够防止形成片状聚合物并使烯烃聚合反应稳定地开始的有效的聚烯烃制造方法。 更具体地,提供了通过基本上在气相条件下和在包含固体催化剂组分和有机金属化合物的催化剂存在下均匀聚合或共聚烯烃或烯烃来制备聚烯烃的方法,所述固体催化剂组分含有镁, 一种或多种选自钛和钒并且还含有卤素的元素,其中在将催化剂进料到其内部保持基本上处于气相条件的反应器中,在用作分散催化剂的介质的聚烯烃存在下 并且在仅作为所述介质的所述聚烯烃存在下基本上不引起聚合反应的状态下,开始使烯烃均聚或共聚,满足上述条件的固体催化剂组分具有平均粒径 明显大于将要用于固体催化剂组分的固体催化剂组分 至少直到烯烃均聚物或共聚物的形成量与用作催化剂分散介质的聚烯烃的量相同的量使用聚合反应的主要阶段。