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    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：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
    5.
    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
    7.
    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。

    Process for controlling the MWD of a broad/bimodal resin in a single reactor
    8.
    发明授权
    Process for controlling the MWD of a broad/bimodal resin in a single reactor 失效
    在单个反应器中控制宽/双峰树脂的MWD的方法

    公开(公告)号：US06410474B1

    公开(公告)日：2002-06-25

    申请号：US08814526

    申请日：1997-03-10

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

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

    IPC分类号： B01J3100

    CPC分类号： B01J31/2295 ,  B01J31/122 ,  B01J31/128 ,  B01J31/143 ,  B01J31/1616 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  Y02P20/588 ,  Y10S526/943

    摘要： A make-up catalyst of at least one metallic component of a bimetallic catalyst component is used in conjunction with a bimetallic catalyst to control the proportion of weight fractions in broad or bimodal molecular weight distribution olefin resin product. The bimetallic catalyst which is formed with at least one metallocene of a transition metal, produces broad or bimodal molecular weight distribution polyolefin resin whose composition depends on the ratio of the concentration of the two catalyst components producing the HMW/LMW components. The make-up catalyst consisting of a single metal component is added in proportion necessary to make-up the deficiencies in the amount of the HMW/LMW component. The type of make-up catalyst added depends on whether increase of the HMW or LMW component produced by the bimetallic catalyst is sought.

    摘要翻译： 将双金属催化剂组分的至少一种金属组分的补充催化剂与双金属催化剂结合使用，以控制宽双模分子量分布烯烃树脂产物中重量分数的比例。 由至少一种过渡金属茂金属形成的双金属催化剂产生广泛或双峰分子量分布聚烯烃树脂，其组成取决于产生HMW / LMW组分的两种催化剂组分的浓度比。 由单一金属组分组成的补充催化剂以必要的比例加入以弥补HMW / LMW组分的量的不足。 添加的补​​充催化剂的种类取决于是否寻求由双金属催化剂产生的HMW或LMW组分的增加。

    Bimodal molecular weight distribution polyolefins
    9.
    发明授权
    Bimodal molecular weight distribution polyolefins 失效
    双峰分子量分布聚烯烃

    公开(公告)号：US5539076A

    公开(公告)日：1996-07-23

    申请号：US391373

    申请日：1995-02-15

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

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

    IPC分类号： C08J5/18 ,  B29C49/00 ,  C08F4/643 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/16 ,  C08L23/04 ,  C08F210/02

    CPC分类号： C08F10/02 ,  B29C47/0883 ,  C08L23/04 ,  B29C47/0021 ,  C08F210/16

    摘要： Resins which are in situ catalytically produced blends of broad bimodal molecular weight distribution ethylene resin are produced. The resins of the invention are characterized by a blend of low molecular weight component and high molecular weight component with HMW component weight fraction which is greater than 0 (zero). Generally, the LMW/HMW weight fraction can be controlled within a very broad range. The resin has a molecular weight distribution, which is characterized as MFR or Mw/Mn. The bimodal molecular weight resins can be processed into films on existing equipment, and exhibit good processability in blown film production and provide film product of excellent FQR. The resin of the invention exhibits reduced tendency towards die-lip buildup and smoking in on-line operations.

    摘要翻译： 产生原位催化产生宽双峰分子量分布乙烯树脂的共混物的树脂。 本发明的树脂的特征在于具有大于0（零）的HMW组分重量分数的低分子量组分和高分子量组分的共混物。 通常，LMW / HMW重量分数可以在非常宽的范围内控制。 树脂具有MFR或Mw / Mn的分子量分布。 双峰分子量树脂可以在现有设备上加工成膜，并且在吹塑薄膜生产中表现出良好的加工性能，并提供优异的FQR薄膜产品。 本发明的树脂在在线操作中表现出减少乳汁积聚和吸烟的倾向。