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    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution
    1.
    发明授权
    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution 失效
    用于乙烯聚合反应的双金属催化剂具有均匀的组分分布

    公开(公告)号：US06486089B1

    公开(公告)日：2002-11-26

    申请号：US08555816

    申请日：1995-11-09

    申请人： Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    发明人： Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    IPC分类号： C08F402

    CPC分类号： B01J31/1616 ,  B01J31/122 ,  B01J31/143 ,  B01J31/2295 ,  B01J37/0203 ,  B01J37/0205 ,  B01J2531/48 ,  C08F4/61904 ,  C08F4/61912 ,  C08F4/61916 ,  C08F10/00 ,  Y10S526/943

    摘要： The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising (1) providing silica which is porous and has a particle size of 1 to 250 microns, having pores which have an average diameter of 50 to 500 Angstroms and having a pore volume of 0.5 to 5.0 cc/g; (2) slurrying the silica in an aliphatic solvent having a boiling point less than 110° C.; (3) providing a volume of a solution comprising metallocene and alumoxane wherein the volume of solution is less than that required to form a slurry of the silica, wherein the concentration of alumoxane, expressed as Al weight percent, is 5 to 20; (4) contacting the silica slurry (2) with said volume of said solution (3) and allowing the solution to impregnate the pores of silica and, to disperse the metallocene in and on the carrier; (5) evaporating the solvents from the contacted and impregnated silica to recover dry free-flowing catalyst particles.

    摘要翻译： 本发明涉及一种将过渡金属茂金属络合物均匀分散在载体上的方法，包括（1）提供多孔的，具有1至250微米的粒径的二氧化硅，具有平均直径为50至500埃的孔， 孔体积为0.5-5.0cc / g;（2）将二氧化硅在沸点小于110℃的脂族溶剂中制浆;（3）提供体积的包含茂金属和铝氧烷的溶液，其中体积为 溶液小于形成二氧化硅浆料所需的溶液，其中铝氧烷的浓度以Al重量百分比表示为5至20; （4）使二氧化硅浆料（2）与所述体积的所述溶液（3）接触，并使所述溶液浸渍二氧化硅的孔隙，并将所述茂金属分散在所述载体上和载体上; （5）从接触和浸渍的二氧化硅蒸发溶剂以回收干燥的自由流动的催化剂颗粒。

    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution
    4.
    发明授权
    Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution 失效
    用于乙烯聚合反应的双金属催化剂具有均匀的组分分布

    公开(公告)号：US06855654B2

    公开(公告)日：2005-02-15

    申请号：US10244930

    申请日：2002-09-16

    申请人： Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    发明人： Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    IPC分类号： B01J31/12 ,  B01J31/14 ,  B01J31/16 ,  B01J31/22 ,  B01J37/02 ,  C08F4/02 ,  C08F4/50 ,  C08F4/619 ,  C08F4/622 ,  C08F4/623 ,  C08F4/64 ,  C08F4/642 ,  C08F10/00 ,  C08F4/44

    CPC分类号： B01J31/1616 ,  B01J31/122 ,  B01J31/143 ,  B01J31/2295 ,  B01J37/0203 ,  B01J37/0205 ,  B01J2531/48 ,  C08F4/61904 ,  C08F4/61912 ,  C08F4/61916 ,  C08F10/00 ,  Y10S526/943

    摘要： The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising (1) providing silica which is porous and has a particle size of 1 to 250 microns, having pores which have an average diameter of 50 to 500 Angstroms and having a pore volume of 0.5 to 5.0 cc/g; (2) slurrying the silica in an aliphatic solvent having a boiling point less than 110° C.; (3) providing a volume of a solution comprising the metallocene complex, alumoxane of formulas R—(Al(R)—O—)x—AlR2 for oligomeric linear alumoxanes and (—Al(R)—O—)y for cyclic alumoxanes wherein x is 1-40, y is 3-40, and R is a C1-C8 alkyl group in an aromatic and a solvent wherein the volume of solution is less than that required to form a slurry of the silica, wherein the concentration of alumoxane, expressed as Al weight percent, is 5 to 20; (4) contacting the silica slurry (2) with said volume of said solution (3) and allowing the solution to impregnate the pores of silica and, to disperse the metallocene in and on the carrier; (5)evaporating the solvents from the contacted and impregnated silica to recover dry free-flowing catalyst particles.

    摘要翻译： 本发明涉及一种将过渡金属茂金属络合物均匀分散在载体上的方法，包括（1）提供多孔的，具有1至250微米的粒径的二氧化硅，具有平均直径为50至500埃的孔， 孔体积为0.5-5.0cc / g;（2）将二氧化硅在沸点低于110℃的脂肪族溶剂中制浆;（3）提供体积的包含金属茂配合物的溶液，式 低聚线型铝氧烷的R-（Al（R）-O-）x-AlR2和环状铝氧烷的（-Al（R）-O-）y，其中x为1-40，y为3-40，R为 芳族和溶剂中的C 1 -C 8烷基，其中溶液的体积小于形成二氧化硅浆料所需的体积，其中铝氧烷的浓度以Al重量百分比表示为5至20;（4）接触 二氧化硅浆料（2）与所述溶液（3）的体积一起并使溶液浸渍二氧化硅的孔隙， 在载体上和载体上存在金属茂;（5）从接触和浸渍的二氧化硅中蒸发溶剂以回收干燥的自由流动的催化剂颗粒。

    Process for controlling the MWD of a broad/bimodal resin produced in a single reactor
    6.
    发明授权
    Process for controlling the MWD of a broad/bimodal resin produced in a single reactor 失效
    控制在单个反应器中生产的宽/双峰树脂的MWD的方法

    公开(公告)号：US5525678A

    公开(公告)日：1996-06-11

    申请号：US310446

    申请日：1994-09-22

    申请人： Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    发明人： Robert I. Mink ,  Thomas E. Nowlin ,  Pradeep P. Shirodkar ,  Sandra D. Schregenberger ,  Grace O. Tsien

    IPC分类号： C08F4/64 ,  C08F2/00 ,  C08F4/42 ,  C08F4/44 ,  C08F4/619 ,  C08F4/646 ,  C08F10/00 ,  C08F10/02 ,  C08F4/656

    CPC分类号： C08F10/00 ,  C08F4/61904 ,  C08F4/61912 ,  C08F4/61916

    摘要： A bimetallic catalyst produces broad or bimodal molecular weight distribution polyolefin resin whose composition depends on the ratio of the concentration of the two metals of the catalyst producing the HMW and LMW components. The bimetallic catalyst produces a broad/bimodal MWD resin whose HMW and LMW components depend on the relative productivity of each of the transition metal sites of the catalyst. Water and/or carbon dioxide are cofed to the polymerization reactor at levels necessary to modify the weight fractions of the HMW and LMW components, thus achieving a target molecular weight distribution, MWD. The invention allows the resin MWD to be adjusted in the reactor. The weight fraction of the high molecular weight component decreases with the addition of the water and or the carbon dioxide and the FI of the overall product increases with a decrease in the HMW component weight fraction in the product.

    摘要翻译： 双金属催化剂产生宽或双峰分子量分布聚烯烃树脂，其组成取决于产生HMW和LMW组分的催化剂的两种金属的浓度之比。 双金属催化剂产生宽/双峰MWD树脂，其HMW和LMW组分取决于催化剂的每个过渡金属位点的相对生产率。 水和/或二氧化碳以改变HMW和LMW组分的重量分数所必需的水平配合到聚合反应器中，从而达到目标分子量分布MWD。 本发明允许在反应器中调节树脂MWD。 高分子量组分的重量分数随着水的添加和/或二氧化碳的减少而降低，并且随着产品中HMW组分重量分数的降低，整个产品的FI增加。

    High activity polyethylene catalysts which produce bimodal or trimodal product molecular weight distributions
    10.
    发明授权
    High activity polyethylene catalysts which produce bimodal or trimodal product molecular weight distributions 失效
    产生双峰或三峰产物分子量分布的高活性聚乙烯催化剂

    公开(公告)号：US5693583A

    公开(公告)日：1997-12-02

    申请号：US799086

    申请日：1997-02-11

    申请人： Robert O. Hagerty ,  Per K. Husby ,  Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin

    发明人： Robert O. Hagerty ,  Per K. Husby ,  Yury V. Kissin ,  Robert I. Mink ,  Thomas E. Nowlin

    IPC分类号： B01J31/38 ,  C08F4/02 ,  C08F4/60 ,  C08F4/654 ,  C08F4/658 ,  C08F10/02 ,  B01J31/00 ,  B01J37/00

    CPC分类号： C08F10/02 ,  Y02P20/52

    摘要： A catalyst composition for copolymerizing ethylene and alpha-olefins is prepared by treating a silica carrier, in a non-polar hydrocarbon solvent, with a dialkyl magnesium compound, a halogen-containing compound and titanium tetrachloride, to form a catalyst precursor and activating the precursor with dimethylaluminum chloride. Also disclosed is a process for copolymerizing ethylene and alpha-olefins in the presence of the catalyst of the invention. The polymer products have multimodal molecular weight distributions unlike unimodal molecular weight distributions of polymers prepared with similar catalyst precursors but activated with different alkylaluminum activators, e.g., triethylaluminum or trimethylaluminum.

    摘要翻译： 通过用二烷基镁化合物，含卤素化合物和四氯化钛处理非极性烃溶剂中的二氧化硅载体来制备用于共聚乙烯和α-烯烃的催化剂组合物，以形成催化剂前体并活化前体 与二甲基氯化铝。 还公开了在本发明的催化剂存在下共聚乙烯和α-烯烃的方法。 聚合物产物具有多峰分子量分布，不同于用类似的催化剂前体制备的聚合物的单峰分子量分布，但是用不同的烷基铝活化剂例如三乙基铝或三甲基铝活化。