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    Single step process for the preparation of lower α-alkene polymerization heterogeneous solid catalyst
    1.
    发明授权
    Single step process for the preparation of lower α-alkene polymerization heterogeneous solid catalyst 有权
    用于制备低级α-烯烃聚合异相固体催化剂的单步法

    公开(公告)号：US07265074B2

    公开(公告)日：2007-09-04

    申请号：US10552217

    申请日：2003-04-10

    申请人： Sumit Bhaduri ,  Virendra Kumar Gupta ,  Krishna Sarma

    发明人： Sumit Bhaduri ,  Virendra Kumar Gupta ,  Krishna Sarma

    IPC分类号： C08F4/626 ,  C08F4/64

    CPC分类号： C08F110/00 ,  C08F110/02 ,  C08F110/06 ,  C08F4/651 ,  C08F4/654

    摘要： Single step process for the preparation of lower α-alkene polymerisation heterogeneous solid catalyst, wherein the procatalyst is obtained by reacting organomagnesium precursor and titanium tetrahalide or titanium haloalkoxo species of the formula Ti(OR)m Xn, with a hydrocarbon or halohydrocarbon solvent and internal electron donor and optionally an acid halide under microwave irradiation of 300 to 1200 W. The mole ratio of the organomagnesium precursor to the titanium tetrachloride or titanium haloalko species is 1:6 to 1:20 and the mole ratios of the electron donor and acid halide to titanium is 0.3 to 1.5 and 0.02 to 0.2, respectively.

    摘要翻译： 用于制备低级α-烯烃聚合异相固体催化剂的单步法，其中通过有机镁前体和式Ti（OR）m Xn的四卤化钛或卤代烷氧基钛与烃或卤代烃溶剂和内部 电子给体和任选的酰卤，在微波辐射下为300〜1200W。有机镁前体与四氯化钛或钛卤代烷烃的摩尔比为1:6〜1:20，电子给体和酰卤的摩尔比 钛分别为0.3〜1.5,0.02〜0.2。

    Process for producing syndiotactic polyolefins
    3.
    发明授权
    Process for producing syndiotactic polyolefins 失效
    间同立构聚烯烃的制备方法

    公开(公告)号：US5334677A

    公开(公告)日：1994-08-02

    申请号：US792974

    申请日：1991-11-15

    申请人： Abbas Razavi ,  John A. Ewen

    发明人： Abbas Razavi ,  John A. Ewen

    IPC分类号： B01J37/00 ,  B01J31/22 ,  C07F17/00 ,  C08F4/60 ,  C08F4/62 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/6592 ,  C08F4/74 ,  C08F4/82 ,  C08F10/00 ,  C08F10/06 ,  C08F110/04 ,  C08F110/06 ,  C08F110/14 ,  C08F4/622 ,  C08F4/626

    CPC分类号： C08F110/06 ,  C07F17/00 ,  C08F10/00 ,  C08F4/63912 ,  C08F4/63927 ,  Y10S526/943

    摘要： The invention provides a metallocene catalyst for use in preparing syndiotactic polyolefins. The catalyst comprises a bridged metallocene in which one of the cyclopentadienyl rings is substituted in a substantially different manner from the other ring. It was discovered that this type of catalyst is highly syndiospecific, and it also produces a polymer with a novel microstructure. The invention further includes the use of one or more of the catalysts in a polymerization process. The catalyst is generally described by the formulaR"(CpR.sub.n)(CpR'.sub.m)MeQ.sub.kwherein each Cp is a cyclopentadienyl or substituted cyclopentadienyl ring; each R.sub.n and R'.sub.m is the same or different and is a hydrocarbyl radicals having 1-20 carbon atoms; R" is a structural bridge between the two Cp rings imparting stereorigidity to the catalyst; Me is a group 4b, 5b, or 6b metal from the Periodic Table of Elements; each Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; 0.ltoreq.k.ltoreq.3; 0.ltoreq.n.ltoreq.4; 1.ltoreq.m.ltoreq.4; and wherein R'.sub.m is selected such that (CpR'.sub.m) is a sterically different ring than (CpR.sub.n).

    摘要翻译： 本发明提供用于制备间同立构聚烯烃的茂金属催化剂。 该催化剂包括其中一个环戊二烯基环以与另一个环基本不同的方式被取代的桥连茂金属。 发现这种催化剂具有高度的同分子特异性，并且还产生具有新颖微观结构的聚合物。 本发明还包括在聚合过程中使用一种或多种催化剂。 催化剂通常由式R“（CpRn）（CpR'm）MeQk描述，其中每个Cp是环戊二烯基或取代的环戊二烯基环; 每个Rn和R'm相同或不同，是具有1-20个碳原子的烃基; R“是赋予催化剂立体刚性的两个Cp环之间的结构桥; Me是元素周期表中的4b，5b或6b族金属; 每个Q是具有1-20个碳原子的烃基或是卤素; 0

    Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution
    4.
    发明授权
    Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution 失效
    用于制备具有窄分子量分布的聚乙烯的催化剂和方法

    公开(公告)号：US3755274A

    公开(公告)日：1973-08-28

    申请号：US3755274D

    申请日：1972-05-16

    申请人： WACKER CHEMIE GMBH

    发明人： KIPPE D ,  MAIER S ,  PIEKARSKI G ,  HUNDMEYER A

    IPC分类号： C08F10/02 ,  C08F4/58 ,  C08F4/626 ,  C08F10/00 ,  C08F110/02 ,  C08G77/38 ,  C08F1/44 ,  C08F3/06

    CPC分类号： C08G77/38 ,  C08F10/00 ,  C08F4/6265

    摘要： A catalyst for the production of polyethylene and modified polyethylene having a narrow molecular weight distribution comprising the reaction product of (A) a reaction product of one mol of trialkyl aluminum having from two to eight carbon atoms in each of the alkyls with from one to two mols of a polysiloxane having a viscosity of from 5 to 100 cSt (25*C) and monomer units having the formula

    WHERE R is alkyl having one to six carbon atoms, cycloalkyl or aryl and (B) a compound of the formulae

    摘要翻译： 用于生产具有窄分子量分布的聚乙烯和改性聚乙烯的催化剂包括（A）在每个烷基中具有2至8个碳原子的1摩尔三烷基铝的反应产物与1至2的反应产物 具有粘度为5至100cSt（25℃）的聚硅氧烷的摩尔数和式WHERE R为具有1至6个碳原子的烷基的单体单元，环烷基或芳基和（B）式TiX4-n的化合物 （OR'）n，VOX 3-n（OR'）n和VX 4-n（OR'）n其中X是卤素，R'是具有1-8个碳原子的烷基或环烷基，n具有在0.1和2之间的值 ，或所述化合物的混合物，以及利用所述反应产物催化剂制备具有窄分子量分布的聚乙烯和改性聚乙烯的方法。

    Method of polymerization and copolymerization of ethylene
    6.
    发明授权
    Method of polymerization and copolymerization of ethylene 有权
    乙烯的聚合和共聚方法

    公开(公告)号：US07193022B2

    公开(公告)日：2007-03-20

    申请号：US10541597

    申请日：2004-01-16

    申请人： Chun-Byung Yang ,  Won-Young Kim ,  Ho-Sik Chang

    发明人： Chun-Byung Yang ,  Won-Young Kim ,  Ho-Sik Chang

    IPC分类号： C08F4/626 ,  C08F4/629 ,  C08F10/02

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F4/6567 ,  C08F4/651 ,  C08F2500/12

    摘要： Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alcohol, (ii) reacting the magnesium solution with ester compound having at least one hydroxyl group and silicon compound having alkoxy group, (iii) preparing a solid titanium catalyst component by reacting mixture of titanium compound and haloalkane compound; and (iv) producing solid titanium complex catalyst by reacting the solid titanium catalyst component with mixture of aluminum compound and haloalkane compound, or with haloalkane; and (b) organometallic compounds in Group II or III of the Periodic Table.

    摘要翻译： 公开了一种聚合和共聚乙烯的方法，其在（a）通过以下步骤制备的固体钛络合物催化剂的存在下进行：（i）通过使卤代镁化合物与醇接触来制备镁溶液，（ii） 使镁溶液与具有至少一个羟基的酯化合物和具有烷氧基的硅化合物反应，（iii）通过使钛化合物和卤代烷烃化合物的混合物反应制备固体钛催化剂组分; 和（iv）通过使固体钛催化剂组分与铝化合物和卤代烷烃化合物或卤代烷烃的混合物反应制备固体钛络合物催化剂; 和（b）元素周期表II或III族中的有机金属化合物。

    Polymerization process employing lanthanide halide catalyst and polymer produced
    8.
    发明授权
    Polymerization process employing lanthanide halide catalyst and polymer produced 失效
    使用镧系元素卤化物催化剂和聚合物的聚合方法

    公开(公告)号：US5391659A

    公开(公告)日：1995-02-21

    申请号：US062103

    申请日：1993-05-14

    申请人： Ted M. Pettijohn ,  Henry L. Hsieh

    发明人： Ted M. Pettijohn ,  Henry L. Hsieh

    IPC分类号： C08F4/626 ,  C08F10/00 ,  C08F4/635 ,  C08F4/631

    CPC分类号： C08F10/00

    摘要： A polymerization catalyst is formed by producing a solution of a halide of scandium, yttrium, or a rare earth metal and an alcohol; contacting the solution with an organometallic compound to form a soluble complex; and contacting the soluble complex with a halide ion exchanging source. Optionally an ester or an anhydride can also be combined with the halide solution or the soluble complex. The catalyst thus produced can be combined with an organometallic cocatalyst.

    摘要翻译： 通过生产钪，钇或稀土金属和醇的卤化物溶液形成聚合催化剂; 使溶液与有机金属化合物接触以形成可溶性络合物; 并将可溶性络合物与卤离子交换源接触。 任选地，酯或酸酐也可以与卤化物溶液或可溶性络合物组合。 如此生产的催化剂可与有机金属助催化剂组合。