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    Process for the production of polyethylene resin
    1.
    发明申请
    Process for the production of polyethylene resin 审中-公开
    聚乙烯树脂生产工艺

    公开(公告)号：US20090182100A1

    公开(公告)日：2009-07-16

    申请号：US12008740

    申请日：2008-01-14

    申请人： Gerhard K. Guenther ,  Steven D. Gray ,  Tim J. Coffy

    发明人： Gerhard K. Guenther ,  Steven D. Gray ,  Tim J. Coffy

    IPC分类号： C08F2/01

    CPC分类号： C08F210/16 ,  C08F110/02 ,  C08F2/001 ,  C08F2/00 ,  C08F2500/02 ,  C08F210/14 ,  C08F2500/01

    摘要： Process for the polymerization of ethylene to produce a polymer of enhanced long chain branching. Ethylene and hydrogen are introduced into a first reaction zone to produce an ethylene polymer having a first molecular weight distribution. The polymer from the first reaction zone is applied to a second reaction zone along with ethylene and a C3-C8 alpha-olefin monomer. The second reaction zone is operated to produce a copolymer having a second molecular weight distribution different from the first molecular weight distribution. A polymer fluff of bimodal molecular weight distribution is recovered from the second reaction zone and heated to melt the fluff and then extruded. Concomitantly with the heating and or extrusion, the polymer fluff is treated in order to enhance the long chain branching and reduce the melt index MI5 of the polymer product.

    摘要翻译： 乙烯聚合制备增强长链支化聚合物的方法。 将乙烯和氢气引入第一反应区以产生具有第一分子量分布的乙烯聚合物。 来自第一反应区的聚合物与乙烯和C 3 -C 8α-烯烃单体一起施加到第二反应区。 操作第二反应区以产生具有不同于第一分子量分布的第二分子量分布的共聚物。 从第二反应区回收双峰分子量分布的聚合物绒毛，并加热熔化绒毛然后挤出。 伴随着加热和/或挤出，处理聚合物绒毛以增强长链支化并降低聚合物产物的熔体指数MI5。

    Polyolefin composition having reduced color bodies
    2.
    发明授权
    Polyolefin composition having reduced color bodies 失效
    聚烯烃组合物具有降低的着色体

    公开(公告)号：US06846859B2

    公开(公告)日：2005-01-25

    申请号：US10160462

    申请日：2002-05-31

    申请人： Tim J. Coffy ,  Steven D. Gray ,  Gerhard K. Guenther

    发明人： Tim J. Coffy ,  Steven D. Gray ,  Gerhard K. Guenther

    IPC分类号： C08K5/134 ,  C08K5/526 ,  C08L5/52

    CPC分类号： C08K5/1345 ,  C08K5/526 ,  C08K2201/014 ,  C08L23/02

    摘要： The present invention includes a polyolefin composition having reduced coloration with aging. The polyolefin composition comprises at least one polyolefin, an effective amount of a primary phenolic antioxidant to promote long term thermal stability of the polymer composition, and an effective amount of a phosphite processing stabilizer to promote thermal stability of the polymer composition during melt processing. The polymer composition further comprises an effective amount of a sacrificial phosphite antioxidant to reduce the yellowness index of the polymer composition. The sacrificial phosphite antioxidant and the phosphite processing stabilizer are not the same compound.

    摘要翻译： 本发明包括随着老化而着色度降低的聚烯烃组合物。 聚烯烃组合物包含至少一种聚烯烃，有效量的初级酚类抗氧化剂以促进聚合物组合物的长期热稳定性，以及有效量的亚磷酸酯加工稳定剂，以促进熔融加工期间聚合物组合物的热稳定性。 聚合物组合物还包含有效量的牺牲亚磷酸酯抗氧化剂以降低聚合物组合物的黄度指数。 牺牲亚磷酸酯抗氧化剂和亚磷酸酯加工稳定剂是不同的化合物。

    Method of producing polyethylene resins for use in blow molding
    3.
    发明授权
    Method of producing polyethylene resins for use in blow molding 有权
    生产用于吹塑成型的聚乙烯树脂的方法

    公开(公告)号：US06433103B1

    公开(公告)日：2002-08-13

    申请号：US09775396

    申请日：2001-01-31

    申请人： Gerhard K. Guenther ,  Lea Ann Nairn ,  Curt D. Clark ,  Ben W. Hicks ,  Ronald A. Tharappel ,  Tim J. Coffy

    发明人： Gerhard K. Guenther ,  Lea Ann Nairn ,  Curt D. Clark ,  Ben W. Hicks ,  Ronald A. Tharappel ,  Tim J. Coffy

    IPC分类号： C08F800

    CPC分类号： B29C47/92 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/0054 ,  B29C2947/92695 ,  C08F8/50 ,  C08F2810/10 ,  C08F110/02

    摘要： A method of processing polyethylene for use as an extruded blow molding resin to improve the properties and processability thereof is accomplished by modifying a polyethylene resin having a molecular weight distribution (Mw/Mn) of less than about 10. The modification is carried out by the addition of a free radical initiator to the resin during extrusion of the resin to increase the rheological breadth of the polyethylene from about 10% to about 60% compared to unmodified polyethylene resin extruded under similar conditions. In another aspect of the invention, a polyethylene resin having higher melt index is processed to provide a desired final melt index by the addition of a free radical initiator where it would otherwise be necessary to utilize a resin having lower melt flow, and which is more difficult to process. Improvements in color can also be obtained.

    摘要翻译： 通过改性分子量分布（Mw / Mn）小于约10的聚乙烯树脂，可以实现加工用于挤出吹塑树脂以提高其性能和加工性能的聚乙烯的方法。该改性通过 与在类似条件下挤出的未改性聚乙烯树脂相比，在树脂挤出期间向树脂中加入自由基引发剂以将聚乙烯的流变宽度从约10％增加至约60％。 在本发明的另一方面，通过加入自由基引发剂处理具有较高熔体指数的聚乙烯树脂以提供所需的最终熔体指数，否则将需要使用具有较低熔体流动性的树脂，并且其更多 难以处理 也可以获得颜色的改善。

    Method of producing polyethylene resins for use in blow molding
    4.
    发明授权
    Method of producing polyethylene resins for use in blow molding 失效
    生产用于吹塑成型的聚乙烯树脂的方法

    公开(公告)号：US06706822B2

    公开(公告)日：2004-03-16

    申请号：US10170753

    申请日：2002-06-13

    申请人： Gerhard K. Guenther ,  Lea Ann Nairn ,  Curt D. Clark ,  Ben W. Hicks ,  Ronald A. Tharappel ,  Tim J. Coffy

    发明人： Gerhard K. Guenther ,  Lea Ann Nairn ,  Curt D. Clark ,  Ben W. Hicks ,  Ronald A. Tharappel ,  Tim J. Coffy

    IPC分类号： C08F800

    CPC分类号： B29C47/92 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/0054 ,  B29C2947/92695 ,  C08F8/50 ,  C08F2810/10 ,  C08F110/02

    摘要： A method of processing polyethylene for use as an extruded blow molding resin to improve the properties and processability thereof is accomplished by modifying a polyethylene resin having a molecular weight distribution (Mw/Mn) of less than about 10. The modification is carried out by the addition of a free radical initiator to the resin during extrusion of the resin to increase the rheological breadth of the polyethylene from about 10% to about 60% compared to unmodified polyethylene resin extruded under similar conditions. In another aspect of the invention, a polyethylene resin having higher melt index is processed to provide a desired final melt index by the addition of a free radical initiator where it would otherwise be necessary to utilize a resin having lower melt flow, and which is more difficult to process. Improvements in color can also be obtained.

    摘要翻译： 通过改性分子量分布（Mw / Mn）小于约10的聚乙烯树脂，可以实现加工用于挤出吹塑树脂以提高其性能和加工性能的聚乙烯的方法。该改性通过 与在类似条件下挤出的未改性聚乙烯树脂相比，在树脂挤出期间向树脂中加入自由基引发剂以将聚乙烯的流变宽度从约10％增加至约60％。 在本发明的另一方面，通过加入自由基引发剂处理具有较高熔体指数的聚乙烯树脂以提供所需的最终熔体指数，否则将需要使用具有较低熔体流动性的树脂，并且其更多 难以处理 也可以获得颜色的改善。

    Hydrogen response Ziegler-Natta catalyst for narrowing MWD of polyolefin, method of making, method of using, and polyolefins made therewith
    7.
    发明授权
    Hydrogen response Ziegler-Natta catalyst for narrowing MWD of polyolefin, method of making, method of using, and polyolefins made therewith 有权
    用于使聚烯烃的MWD变窄的齐格勒 - 纳塔催化剂，制造方法，使用方法和由此制成的聚烯烃

    公开(公告)号：US06486274B1

    公开(公告)日：2002-11-26

    申请号：US09687688

    申请日：2000-10-13

    申请人： Steven D. Gray ,  Tim J. Coffy

    发明人： Steven D. Gray ,  Tim J. Coffy

    IPC分类号： C08F4614

    CPC分类号： C08F10/00 ,  C08F4/6567 ,  C08F4/6557

    摘要： A Ziegler-Natta type catalyst having an improved hydrogen response provides for narrowing of the MWD of resulting polyolefins polymerized using such catalyst, with such catalyst generally made by a) contacting a soluble magnesium dialkoxide compound of the general formula Mg(OR″)2 with a halogenating agent capable of exchanging one halogen for one alkoxide to form a reaction product A, where R″ is a hydrocarbyl or substituted hydrocarbyl having from 1 to 20 carbon atoms; b) contacting reaction product A with a first halogenating/titanating agent to form reaction product B; and c) contacting reaction product B with a second halogenating/titanating agent to form a catalyst component; wherein in at least one of steps b) and c), the halogenating/titanating agent is a blend of Ti(OPr)4 and TiCl4. Catalyst components, catalysts, catalyst systems, polyolefin polymers, and methods of forming each are disclosed.

    摘要翻译： 具有改善的氢气响应的齐格勒 - 纳塔型催化剂使得使用这种催化剂聚合的所得聚烯烃的MWD变窄，通常用以下方法制备的催化剂：a）使通式Mg（OR“）2的可溶性二烷氧基镁化合物 与一种能够与一个卤素交换一个醇盐形成反应产物A的卤化剂，其中R“是具有1至20个碳原子的烃基或取代的烃基; b）使反应产物A与第一卤化/钛化剂接触以形成反应产物B; 和c）使反应产物B与第二卤化/钛化剂接触以形成催化剂组分; 其中在步骤b）和c）中的至少一个中，卤化/钛化剂是Ti（OPr）4和TiCl 4的共混物。 公开了催化剂组分，催化剂，催化剂体系，聚烯烃聚合物和各种形成方法。

    Process for controlling morphology of Ziegler-Natta catalysts
    8.
    发明授权
    Process for controlling morphology of Ziegler-Natta catalysts 失效
    控制齐格勒 - 纳塔催化剂形态的方法

    公开(公告)号：US08063159B2

    公开(公告)日：2011-11-22

    申请号：US11778262

    申请日：2007-07-16

    申请人： Kayo Vizzini ,  Henry Enriquez ,  Steven D. Gray ,  Tim J. Coffy ,  David W. Knoeppel

    发明人： Kayo Vizzini ,  Henry Enriquez ,  Steven D. Gray ,  Tim J. Coffy ,  David W. Knoeppel

    IPC分类号： C08F4/00

    CPC分类号： C08F10/00 ,  C08F210/16 ,  Y10T428/1345 ,  Y10T428/139 ,  C08F4/6546 ,  C08F4/6541

    摘要： Disclosed is a process for making a Ziegler-Natta catalyst having controlled particle size and distribution. It comprises altering the precipitation of a catalyst component from a catalyst synthesis solution including a soluble magnesium containing catalyst precursor by controlling the concentration of either the soluble magnesium containing catalyst precursor, wherein the average particle size of the catalyst component is increased, and the particle size distribution increased, with a decreased concentration of the soluble magnesium containing catalyst precursor; or of the precipitating agent, wherein the average particle size of the catalyst component is increased, and the particle size distribution increased with an increased concentration of the precipitating agent. Use of the invention enables improved catalyst consistency regardless of production scale and customizing of catalyst morphology to desired polymer morphology. The novel catalyst components may be used to prepare polymers, and end-use articles therefrom, having desirable properties.

    摘要翻译： 公开了一种制备具有受控粒度和分布的齐格勒 - 纳塔催化剂的方法。 其包括通过控制可溶性含镁催化剂前体的浓度来改变催化剂组分从包括可溶性镁的催化剂前体的催化剂合成溶液中的沉淀，其中催化剂组分的平均粒径增加，并且颗粒尺寸 分布增加，可溶性含镁催化剂前体的浓度降低; 或沉淀剂，其中催化剂组分的平均粒度增加，并且随着沉淀剂浓度的增加，粒度分布增加。 使用本发明能够改善催化剂的一致性，而不管生产规模如何，催化剂形态定制成所需的聚合物形态。 新颖的催化剂组分可用于制备聚合物及其最终用途制品，具有期望的性能。

    Soluble magnesium complexes useful for the production of polyolefin catalysts and catalysts prepared therewith
    9.
    发明授权
    Soluble magnesium complexes useful for the production of polyolefin catalysts and catalysts prepared therewith 失效
    用于制备聚烯烃催化剂和催化剂的可溶性镁配合物

    公开(公告)号：US07067451B1

    公开(公告)日：2006-06-27

    申请号：US11016104

    申请日：2004-12-17

    申请人： Tim J. Coffy ,  Steven D. Gray

    发明人： Tim J. Coffy ,  Steven D. Gray

    IPC分类号： B01J31/00

    CPC分类号： C07C41/18 ,  C07C43/13 ,  C07F3/003 ,  C08F10/00 ,  C08F4/6548 ,  C08F4/6555 ,  C08F4/651

    摘要： A method of forming a polyolefin catalyst component includes halogenating metal complexes. The metal complexes result from reacting a metal alkoxide with an alcohol-ether. A particular non-limiting example is a magnesium complex formed by reacting magnesium alkoxide with an ethylene alcohol-ether, and then chlorinating the magnesium complex. Catalyst components, catalysts, catalyst systems, polyolefin polymers and methods of making each are disclosed.

    摘要翻译： 形成聚烯烃催化剂组分的方法包括卤化金属络合物。 金属络合物是由金属醇盐与醇 - 醚反应产生的。 特别的非限制性实例是通过使烷氧基镁与乙烯醇 - 醚反应形成的镁络合物，然后氯化镁络合物。 公开了催化剂组分，催化剂，催化剂体系，聚烯烃聚合物和制备方法。