公开(公告)号：US20120252994A1

公开(公告)日：2012-10-04

申请号：US13515418

申请日：2010-11-16

Applicant: Dongming Li ,  Ching-Tai Lue ,  Chi-I Kuo ,  Mark G. Goode ,  Stefan B. Ohlsson

Inventor： Dongming Li ,  Ching-Tai Lue ,  Chi-I Kuo ,  Mark G. Goode ,  Stefan B. Ohlsson

IPC: C08F4/76 ,  C08F10/02

CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08F2400/02 ,  C08F4/65927 ,  C08F2/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/26

Abstract: Provided is a method for making a polyolefin comprising contacting one or more olefins in a reactor containing a catalyst; polymerizing the one or more olefins to produce an olefin polymer characterized by a first melt flow ratio (MFR) and a first haze; and altering the reaction temperature in the reactor to shift the first MFR to a MFR that is different than the first MFR and to shift the first haze to a haze that is different than the first haze.

Abstract translation: 提供了一种制备聚烯烃的方法，其包括使含有催化剂的反应器中的一种或多种烯烃接触; 聚合所述一种或多种烯烃以产生以第一熔体流动比（MFR）和第一雾度为特征的烯烃聚合物; 并且改变反应器中的反应温度以将第一MFR转变成不同于第一MFR的MFR，并将第一雾度移动到与第一雾度不同的雾度。

公开(公告)号：US20100133714A1

公开(公告)日：2010-06-03

申请号：US12624046

申请日：2009-11-23

Applicant: Stephen P. Jaker ,  Sun-Chueh Kao ,  Dongming Li ,  Daniel P. Zilker, JR. ,  Ching-Tai Lue

Inventor： Stephen P. Jaker ,  Sun-Chueh Kao ,  Dongming Li ,  Daniel P. Zilker, JR. ,  Ching-Tai Lue

IPC: B29C49/00 ,  C08L23/06

CPC classification number: B29C47/64 ,  B29B7/421 ,  B29C47/0004 ,  B29C47/0026 ,  B29C47/1063 ,  B29C47/1072 ,  B29C49/0005 ,  B29C49/04 ,  B29C49/06 ,  B29K2023/06 ,  B29K2023/0633 ,  B29K2023/065 ,  B29K2105/0005 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2314/06 ,  C08L2666/06

Abstract: Bimodal polyethylene compositions and methods for making the same are provided. In at least one specific embodiment, the bimodal polyethylene composition can include a high molecular weight component having a weight average molecular weight (Mw) of from about 400,000 to about 950,000. The bimodal polyethylene composition can also include a low molecular weight component having a weight average molecular weight (Mw) of from about 3,000 to about 100,000. The high molecular weight component can be present in an amount ranging from about 25 wt % to about 40 wt % of the bimodal polyethylene composition. The bimodal polyethylene composition can also have a percent die swell of less than about 80%.

Abstract translation: 提供双峰聚乙烯组合物及其制备方法。 在至少一个具体实施方案中，双峰聚乙烯组合物可包括重均分子量（Mw）为约400,000至约950,000的高分子量组分。 双峰聚乙烯组合物还可以包括重均分子量（Mw）为约3,000至约100,000的低分子量组分。 高分子量组分可以以双峰聚乙烯组合物的约25重量％至约40重量％的量存在。 双峰聚乙烯组合物还可以具有小于约80％的模头膨胀百分比。

公开(公告)号：US06828394B2

公开(公告)日：2004-12-07

申请号：US10199808

申请日：2002-07-19

Applicant: George Alan Vaughan ,  John F. Szul ,  Matthew Gary McKee ,  James McLeod Farley ,  Ching-Tai Lue ,  Sun-Chueh Kao

Inventor： George Alan Vaughan ,  John F. Szul ,  Matthew Gary McKee ,  James McLeod Farley ,  Ching-Tai Lue ,  Sun-Chueh Kao

IPC: C08F444

CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65922 ,  C08F210/16 ,  Y02P20/52 ,  Y10S526/943 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present invention provides polymerization catalyst compounds, catalyst systems including these catalyst compounds, and to their use in the polymerization of ethylene and at least one comonomer. In particular, the invention provides a catalyst system comprising a poor comonomer incorporating catalyst compound and a good comonomer incorporating catalyst compound. Preferably, the low comonomer incorporating catalyst compound is a metallocene containing at least one substituted or unsubstituted fused ring cyclopentadienyl based ligand which is substantially directed to the front of the molecule, contains a long bridging group, or which contains a methyl substitution pattern which correlates to poor comonomer incorporation. The invention also provides methods of selecting the poor comonomer incorporating metallocene to pair with the good comonomer incorporating metallocene to produce polymers that are easy to process into a variety of articles, especially polyethylene based film, having enhanced properties.

公开(公告)号：US5677381A

公开(公告)日：1997-10-14

申请号：US499262

申请日：1995-07-07

Applicant: Dennis George Peiffer ,  James Joseph Chludzinski ,  Ching-Tai Lue ,  Thomas Craig Erderly

Inventor： Dennis George Peiffer ,  James Joseph Chludzinski ,  Ching-Tai Lue ,  Thomas Craig Erderly

IPC: C08L23/08 ,  C08L23/26 ,  C08L23/34 ,  C08L23/32

CPC classification number: C08L23/0815 ,  C08L2205/02 ,  C08L23/34

Abstract: In one embodiment of the present invention, there is provided a composition comprising a major amount of an ethylene alpha olefin copolymer and a minor amount of a lower molecular weight ethylene alpha olefin or a neutralized sulfonated ethylene alpha olefin.

Abstract translation: 在本发明的一个实施方案中，提供了包含主要量的乙烯-α烯烃共聚物和少量较低分子量乙烯α-烯烃或中和的磺化乙烯α-烯烃的组合物。

公开(公告)号：US4956994A

公开(公告)日：1990-09-18

申请号：US335951

申请日：1989-04-10

Applicant: Ching-Tai Lue

Inventor： Ching-Tai Lue

IPC: G01N3/00 ,  G01N3/42

CPC classification number: G01N3/42 ,  G01N2203/0092 ,  G01N2203/0098

Abstract: A plunger of a known mass is held in a guide sleeve of a test device at a predetermined height over the sample of settable plastic material being tested. The plunger is gently released onto the sample without impact to apply a static force thereon similar to a "handgrip" pressure applied on a molded part during handling. The static pressure is applied on the sample released at selected times and places after reactive components of the sample are mixed for reaction to effect a series of indentations on the sample whose depths are measured and plotted as points on a depth versus time graph to define a cure curve of the sample. Curing rate is determined from the initial slope of the curve. Cure completion is determined where the curve levels off. A measure of the likelihood of handling damage is established by the portion of the indentations after a given time period.

Abstract translation: 已知质量的柱塞被保持在测试装置的引导套筒中，在被测试的可固化塑料材料的样品上的预定高度处。 将柱塞轻轻地释放到样品上而不产生冲击，以在其上施加静力，类似于在处理期间施加在模制部件上的“手柄”压力。 将静态压力施加到在选定的时间和样品上释放的样品上，将样品的反应性组分混合后进行反应，以对测量深度的样品产生一系列凹痕，并将其绘制为深度与时间图上的点，以定义 固化曲线的样品。 固化速率由曲线的初始斜率确定。 治愈完成是在曲线平稳的地方确定的。 处理损害的可能性的度量是由给定时间段之后的缩进部分确定的。

公开(公告)号：US07892466B2

公开(公告)日：2011-02-22

申请号：US11176046

申请日：2005-07-07

Applicant: Dongming Li ,  Ching-Tai Lue

Inventor： Dongming Li ,  Ching-Tai Lue

IPC: B27N3/08 ,  B29D11/00 ,  B29B9/06 ,  D01F1/02

CPC classification number: C08F8/00 ,  B29B9/06 ,  B29B9/12 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/1072 ,  B29K2023/06 ,  B29K2105/256 ,  C08F10/02

Abstract: Methods of tailoring polyethylenes are contemplated utilizing 0.5 to 70 volume percent oxygen containing gases. The tailoring occurs in a melt-conveying zone of a mixer/extruder, and not in the feed or melting zones of a mixer/extruder. The effect of tailoring is to decrease the haze and/or increase the gloss of blown films made from the tailored polyethylenes compared to similar polyethylenes that are extruded/mixed in the substantial absence of oxygen or oxygen containing gases.

Abstract translation: 考虑使用0.5至70体积％含氧气体来调节聚乙烯的方法。 剪切发生在混合器/挤出机的熔体输送区域中，而不是在混合器/挤出机的进料或熔融区域中。 与基本上不含氧气或含氧气体挤出/混合的类似聚乙烯相比，定制的效果是降低由定制的聚乙烯制成的吹塑薄膜的雾度和/或增加的光泽度。

公开(公告)号：US07141632B2

公开(公告)日：2006-11-28

申请号：US10817555

申请日：2004-04-02

Applicant: George Alan Vaughan ,  John F. Szul ,  Matthew Gary McKee ,  James McLeod Farley ,  Ching-Tai Lue ,  Sun-Chueh Kao

Inventor： George Alan Vaughan ,  John F. Szul ,  Matthew Gary McKee ,  James McLeod Farley ,  Ching-Tai Lue ,  Sun-Chueh Kao

IPC: C08F4/44 ,  C08F4/64 ,  C08F4/643 ,  C08F4/6192 ,  C08F4/6392 ,  C08F4/6592

CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65922 ,  C08F210/16 ,  Y02P20/52 ,  Y10S526/943 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present invention provides polymerization catalyst compounds, catalyst systems including these catalyst compounds, and to their use in the polymerization of ethylene and at least one comonomer. In particular, the invention provides a catalyst system comprising a poor comonomer incorporating catalyst compound and a good comonomer incorporating catalyst compound. Preferably, the low comonomer incorporating catalyst compound is a metallocene containing at least one substituted or unsubstituted fused ring cyclopentadienyl based ligand which is substantially directed to the front of the molecule, contains a long bridging group, or which contains a methyl substitution pattern which correlates to poor comonomer incorporation. The invention also provides methods of selecting the poor comonomer incorporating metallocene to pair with the good comonomer incorporating metallocene to produce polymers that are easy to process into a variety of articles, especially polyethylene based film, having enhanced properties.

公开(公告)号：US06492472B2

公开(公告)日：2002-12-10

申请号：US09730963

申请日：2000-12-05

Applicant: Ching-Tai Lue ,  Donna J. Crowther

Inventor： Ching-Tai Lue ,  Donna J. Crowther

IPC: C08F444

CPC classification number: C08F210/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/14 ,  C08F2500/04

Abstract: The present invention relates to mixed catalyst system of at least one bridged, bulky ligand metallocene-type compound, and at least one bridged, asymmetrically substituted, bulky ligand metallocene-type compound, a method of making the mixed catalyst system and to there use in a polymerization process to produce polymers having an unexpected improvement in processability.

Abstract translation: 本发明涉及至少一种桥联，体积大的配体金属茂型化合物和至少一种桥联的，不对称取代的庞大配体金属茂型化合物的混合催化剂体系，制备该混合催化剂体系并在其中使用的方法 聚合过程，以生产具有出人意料的加工性改进的聚合物。

公开(公告)号：US06476171B1

公开(公告)日：2002-11-05

申请号：US09677756

申请日：2000-10-03

Applicant: Ching-Tai Lue ,  Natalie A. Merrill ,  Michael E. Muhle ,  George Alan Vaughan

Inventor： Ching-Tai Lue ,  Natalie A. Merrill ,  Michael E. Muhle ,  George Alan Vaughan

IPC: C08F442

CPC classification number: C08J5/18 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/16 ,  C08J2323/08 ,  Y10S526/901 ,  Y10S526/943 ,  C08F4/65916 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/10 ,  C08F2500/26

Abstract: A polymer of ethylene and at least one alpha olefin having at least 5, carbon atoms obtainable by a continuous gas phase polymerization using supported catalyst of an activated molecularly discrete catalyst such as a metallocene in the substantial absence of an aluminum alkyl based scavenger which polymer has a Melt Index (MI) as herein defined of from 0.1 to 15; a Compositional Distribution Breadth Index (CDBI) as defined herein of at least 70%, a density of from 0.910 to 0.930 g/ml; a Haze value as herein defined of less than 20%; a Melt Index ratio (MIR) as herein defined of from 35 to 80; an averaged Modulus (M) as herein defined of from 20 000 to 60 000 psi (pounds per square inch) and a relation between M and the Dart Impact Strength in g/mil (DIS) complying with the formula: DIS≧0.8×[100+e(11.71-0.000268×M+2.183×10−9×M2)].

Abstract translation: 乙烯和至少一种具有至少5个碳原子的α-烯烃的聚合物，其可通过使用活性分子催化剂如金属茂的负载型催化剂在连续气相聚合中获得，基本上不含烷基铝基清除剂 本文定义的熔体指数（MI）为0.1至15; 如本文所定义的组成分布宽度指数（CDBI）至少为70％，密度为0.910至0.930g / ml; 本文定义的雾度值小于20％; 本文定义的熔体指数比（MIR）为35至80; 如本文所定义的平均模量（M）为20 000至60 000psi（磅/平方英寸），以及M和以g / mil（DIS）计的撞击强度之间的关系：符合下列公式：

公开(公告)号：US06476166B1

公开(公告)日：2002-11-05

申请号：US09620687

申请日：2000-07-20

Applicant: Matthew W. Holtcamp ,  Ching-Tai Lue

Inventor： Matthew W. Holtcamp ,  Ching-Tai Lue

IPC: C08F1014

CPC classification number: C08F210/16 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/00 ,  Y10S526/901 ,  Y10S526/943 ,  C08F4/65916 ,  C08F4/025 ,  C08F4/65912 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/03 ,  C08F4/642

Abstract: This invention is directed to a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with at least one Lewis acid aluminum compound of the formula RnAl(ArHal)3−n, where “ArHal” is a halogenated aryl group, n=1 or 2, and R is a monoanionic group other than a halogenated aryl group. The invention also relates to a polymer produced using the process and to the polymer itself.

Abstract translation: 本发明涉及从一种或多种烯烃单体制备聚烯烃的方法，包括在烯烃聚合条件下将所述烯烃与通过与至少一种式（I）的路易斯酸铝化合物反应而被活化用于烯烃聚合的有机金属催化剂化合物 RnAl（ArHal）3-n，其中“ArHal”是卤代芳基，n = 1或2，R是卤代芳基以外的单阴离子基团。 本发明还涉及使用该方法制备的聚合物和聚合物本身。