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    Solid-State Polymerization of a Liquid Crystalline Polymer
    41.
    发明申请
    Solid-State Polymerization of a Liquid Crystalline Polymer 有权
    液晶聚合物的固态聚合

    公开(公告)号：US20130053533A1

    公开(公告)日：2013-02-28

    申请号：US13594912

    申请日：2012-08-27

    Applicant: Kamlesh P. Nair ,  Steven D. Gray

    Inventor： Kamlesh P. Nair ,  Steven D. Gray

    IPC: C08G63/80 ,  C08G63/685

    CPC classification number: C09K19/22 ,  C08K5/20 ,  C09K19/3086 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/48 ,  C09K2019/0481

    Abstract: A method for forming a high molecular weight thermotropic liquid crystalline polymer is provided. The method includes melt polymerizing two or more monomers in the presence of a unique aromatic amide oligomer to form a prepolymer, and then solid-state polymerizing the prepolymer to achieve a target molecular weight. The present inventors have discovered that a unique aromatic amide oligomer can be employed to help increase the “low shear” complex viscosity of the resulting solid-state polymerized composition. This allows for the attainment of higher than conventional “low shear” complex viscosity values and/or a substantial reduction in the solid-state polymerization time needed to achieve a target complex viscosity. In addition, the oligomeric flow aid can also accelerate the extent to which the “high shear” melt viscosity is increased during solid-state polymerization, which may also contribute to a substantial reduction in the solid-state polymerization time needed to achieve a certain molecular weight.

    Abstract translation: 提供了形成高分子量热致液晶聚合物的方法。 该方法包括在独特的芳族酰胺低聚物存在下熔融聚合两种或更多种单体以形成预聚物，然后使预聚物固相聚合以达到目标分子量。 本发明人已经发现，可以使用独特的芳族酰胺低聚物来帮助提高所得固态聚合组合物的低剪切复合物粘度。 这允许达到高于常规低剪切复合物粘度值和/或实现目标复合物粘度所需的固态聚合时间的显着降低。 此外，低聚流动助剂还可以加速在固态聚合期间高剪切熔体粘度增加的程度，这也可能导致实现一定分子量所需的固态聚合时间的显着降低。

    Method for Minimizing Process Disruptions During Formation of a Liquid Crystalline Polymer
    42.
    发明申请
    Method for Minimizing Process Disruptions During Formation of a Liquid Crystalline Polymer 审中-公开
    在液晶聚合物形成期间最小化工艺中断的方法

    公开(公告)号：US20130053531A1

    公开(公告)日：2013-02-28

    申请号：US13594903

    申请日：2012-08-27

    Applicant: Kamlesh P. Nair ,  Steven D. Gray

    Inventor： Kamlesh P. Nair ,  Steven D. Gray

    IPC: C08G63/80

    CPC classification number: C09K19/22 ,  C08K5/20 ,  C09K19/3086 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/48 ,  C09K2019/0481 ,  C08L67/03

    Abstract: A method for lowering melt viscosity of a liquid crystalline polymer as it is formed in a reactor vessel. More particularly, a reaction mixture is initially supplied to the reactor vessel that contains two or more precursor monomers (e.g., acetylated or non-acetylated). The reaction mixture is heated to an elevated temperature under agitation to initiate formation of the polymer. After a certain period of time, an aromatic amide oligomer is added to the reaction mixture. Among other things, the present inventors have discovered that such an oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. This minimizes the likelihood of “freeze off” of the polymer within the reactor vessel and limits the impact of process disruptions on the production of the liquid crystalline polymer.

    Abstract translation: 液晶聚合物在反应器容器中形成时的熔融粘度降低的方法。 更具体地，反应混合物最初被供应到含有两种或更多种前体单体（例如乙酰化或非乙酰化）的反应器容器中。 在搅拌下将反应混合物加热至高温以引发聚合物的形成。 经过一段时间后，向反应混合物中加入芳香族酰胺低聚物。 其中，本发明人发现，通过改变分子间聚合物链的相互作用，这样的低聚物可以作为流动助剂，从而降低聚合物基体在剪切下的总粘度。 这最小化在反应器容器内冻结聚合物的可能性，并限制了工艺中断对液晶聚合物生产的影响。

    Process for Controlling Morphology of Ziegler-Natta Catalysts
    43.
    发明申请
    Process for Controlling Morphology of Ziegler-Natta Catalysts 审中-公开
    控制齐格勒 - 纳塔催化剂形态的方法

    公开(公告)号：US20120064268A1

    公开(公告)日：2012-03-15

    申请号：US13272279

    申请日：2011-10-13

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

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

    IPC: B32B1/08 ,  C08F10/00 ,  B32B1/00 ,  C08F4/16

    CPC classification number: C08F10/00 ,  C08F210/16 ,  Y10T428/1345 ,  Y10T428/139 ,  C08F4/6546 ,  C08F4/6541

    Abstract: Disclosed is a process for making a Ziegler-Natta catalyst having controlled particle size and distribution. The process 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. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    Abstract translation: 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。 该方法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。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

    POLYSTYRENE HAVING IMPROVED COLOR AND METHODS OF MAKING SAME
    48.
    发明申请
    POLYSTYRENE HAVING IMPROVED COLOR AND METHODS OF MAKING SAME 审中-公开
    具有改进颜色的聚苯乙烯及其制备方法

    公开(公告)号：US20080021157A1

    公开(公告)日：2008-01-24

    申请号：US11456297

    申请日：2006-07-10

    Applicant: Jose M. Sosa ,  Billy Ellis ,  Steven D. Gray

    Inventor： Jose M. Sosa ,  Billy Ellis ,  Steven D. Gray

    IPC: C08L9/00 ,  C08L25/04 ,  B32B27/00

    CPC classification number: C08F279/02 ,  C08K5/005 ,  C08K5/0091 ,  C08L51/04 ,  C08L2666/04 ,  C08L2666/02

    Abstract: A method of improving the color of a high impact polystyrene comprising preparing a reaction mixture comprising styrene, elastomer and at least one antioxidant, and introducing to the reaction mixture a color improving additive prior to the addition of any oxidizing agents to the reaction mixture. A high impact polystyrene comprising a color improving additive, an elastomer and at least one antioxidant wherein the color improving additive is present in the reaction process for production of the high impact polystyrene prior to the introduction of an oxidizing agent and wherein the high impact polystyrene has a 50% to 200% reduction in the Yellowness index as determined in accordance with ASTM E 313 when compared to an otherwise identical polystyrene lacking a color improving additive.

    Abstract translation: 一种改善高抗冲聚苯乙烯颜色的方法，包括制备包含苯乙烯，弹性体和至少一种抗氧化剂的反应混合物，并在向反应混合物中加入任何氧化剂之前向反应混合物中引入增色剂。 包含改色添加剂，弹性体和至少一种抗氧化剂的高抗冲聚苯乙烯，其中在引入氧化剂之前，用于生产高抗冲聚苯乙烯的反应过程中存在改色添加剂，其中高抗冲聚苯乙烯具有 当与没有改色添加剂的其他相同的聚苯乙烯相比时，根据ASTM E 313测定的黄度指数降低50％至200％。

    Apparatus, and associated method, for reporting a measurement summary in a radio communication system
    50.
    发明授权
    Apparatus, and associated method, for reporting a measurement summary in a radio communication system 有权

    公开(公告)号：US07113806B2

    公开(公告)日：2006-09-26

    申请号：US10648049

    申请日：2003-08-26

    Applicant: Steven D. Gray

    Inventor： Steven D. Gray

    IPC: H04Q7/20

    CPC classification number: H04W72/08 ,  H04L1/201 ,  H04W24/10 ,  H04W84/12

    Abstract: Apparatus, and an associated method, for generating a message summary field. The message summary field indicates whether 802.11-formatted data packets are communicated upon a frequency range to which a mobile station operable in an IEEE 802.11 radio communication system is tuned. An indicator indicates whether an 802.11 data packet is detected. And, a reporter generates a measurement summary which includes a measurement summary field populated with a value indicating the determination. Subsequent analysis of the value of the field of the measurement summary is utilized pursuant to dynamic frequency selection operations.

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