System and method for reducing off-gassing of polyphenylene sulfide
    1.
    发明授权
    System and method for reducing off-gassing of polyphenylene sulfide 有权
    减少聚苯硫醚脱气的系统和方法

    公开(公告)号:US08263734B2

    公开(公告)日:2012-09-11

    申请号:US12371275

    申请日:2009-02-13

    IPC分类号: C08G75/14

    摘要: The techniques provide a system and a method of producing polyphenylene sulfide (PPS) polymer. The PPS polymer is produced by reacting a sulfur source and a dihaloaromatic compound in the presence of a polar organic compound in a polymerization mixture in a polymerization vessel. The PPS polymer is washed with a base to lower the oligomer content of the PPS polymer and thus the off-gassing during processing.

    摘要翻译: 该技术提供了一种生产聚苯硫醚(PPS)聚合物的体系和方法。 PPS聚合物通过在聚合容器中的聚合混合物中的极性有机化合物的存在下使硫源和二卤代芳族化合物反应来制备。 PPS聚合物用碱洗涤以降低PPS聚合物的低聚物含量,从而在加工过程中脱气。

    Method of measuring extent of curing of compacted poly(arylene sulfide)
    3.
    发明授权
    Method of measuring extent of curing of compacted poly(arylene sulfide) 失效
    测定压实聚(亚芳基硫)的固化程度的方法

    公开(公告)号:US06946540B2

    公开(公告)日:2005-09-20

    申请号:US10395919

    申请日:2003-03-24

    IPC分类号: C08L81/02 C08G10/02

    CPC分类号: C08L81/02

    摘要: Disclosed herein is a process for preparing cured arylene sulfide polymers. A first curing vessel comprising a first agitator is used to cure a poly(arylene sulfide) compacted powder. The curing proceeds until the compacted powder reaches a melt flow rate within a target range. When the melt flow rate of the compacted powder first reaches the target range, the power consumption of the first agitator is determined. A second curing vessel comprising a second agitator is charged with a second quantity of the compacted poly(arylene sulfide) powder. The second quantity of compacted powder is cured in the second vessel until the power consumption of the second agitator reaches the value at which the melt flow rate in the first curing vessel first reached the target range.

    摘要翻译: 本文公开了一种制备硫化亚芳基硫醚聚合物的方法。 使用包含第一搅拌器的第一固化容器来固化聚(亚芳基硫醚)压实粉末。 固化进行直到压实粉末达到目标范围内的熔体流动速率。 当压实粉末的熔体流动速率首先达到目标范围时,确定第一搅拌器的功率消耗。 装有第二搅拌器的第二固化容器装有第二量压实的聚(亚芳基硫醚)粉末。 第二量的压实粉末在第二容器中固化,直到第二搅拌器的功率消耗达到第一固化容器中的熔体流动速率首先达到目标范围的值。

    Reinforced Poly(Arylene Sulfide) Compositions
    5.
    发明申请
    Reinforced Poly(Arylene Sulfide) Compositions 审中-公开
    增强聚(亚硫酰基)组合物

    公开(公告)号:US20130317159A1

    公开(公告)日:2013-11-28

    申请号:US13477209

    申请日:2012-05-22

    摘要: The present application relates reinforced poly(arylene sulfide) compositions and processes of producing the reinforced poly(arylene sulfide) compositions. The reinforced poly(arylene sulfide compositions can be prepared by blending the reinforcing agent with the poly(arylene sulfide) or by including the reinforcing agent in the process to produce the poly(arylene sulfide). Reinforcing agents which can be utilized are graphenes (e.g., single-walled carbon nanotubes). The inclusion of the graphene reinforcing agent in the poly(arylene sulfide) composition affects the crystallization properties and/or the conductivity of the melt processed poly(arylene sulfide) compositions.

    摘要翻译: 本申请涉及增强的聚(亚芳基硫醚)组合物和生产增强的聚(亚芳基硫醚)组合物的方法。 增强的聚(亚芳基硫醚组合物可以通过将增强剂与聚(亚芳基硫醚)共混或通过包括增强剂在制备聚(亚芳基硫醚)的方法中制备,可以使用的增强剂是石墨烯(例如 ,单壁碳纳米管),在聚(亚芳基硫醚)组合物中包含石墨烯增强剂影响熔融加工的聚(亚芳基硫醚)组合物的结晶性能和/或导电性。

    Method and apparatus for controlling counter current
    6.
    发明授权
    Method and apparatus for controlling counter current 有权
    控制逆流的方法和装置

    公开(公告)号:US06562238B1

    公开(公告)日:2003-05-13

    申请号:US09222169

    申请日:1998-12-29

    IPC分类号: B01D1102

    摘要: In a multistage counter current wash operation wherein an original solvent contained in a cake of polymeric material is displaced with a wash solvent which enters the final stage and progresses forwardly a mathematical model of the counter current wash operation is developed for providing a feedforward control system. In use, the feedforward control system maintains a desired weight fraction of the original solvent that remains in the cake exiting the final wash stage at a desired low level by manipulating the wash solvent flow rate as a function of the flow rate of the feed material. Additionally a feedback control is used in conjunction with the feedforward control.

    摘要翻译: 在多级逆流洗涤操作中,其中包含在聚合物材料饼中的原始溶剂用进入最后阶段的洗涤溶剂置换,并且前进进行逆流洗涤操作的数学模型,以提供前馈控制系统。 在使用中,前馈控制系统通过操作作为进料的流速的函数的洗涤溶剂流速,将原始溶剂的所需重量分数保持在离开最终洗涤阶段的滤饼中所需的低水平。 另外,反馈控制与前馈控制结合使用。

    Pulse continuous curing of poly(arylene sulfide) polymers
    7.
    发明授权
    Pulse continuous curing of poly(arylene sulfide) polymers 有权
    聚(亚芳基硫醚)聚合物的脉冲连续固化

    公开(公告)号:US06437091B1

    公开(公告)日:2002-08-20

    申请号:US09476250

    申请日:1999-12-30

    IPC分类号: C08J324

    摘要: A process is provided for curing poly(arylene sulfide) polymers by achieving and maintaining curing conditions in a cure vessel, then intermittently adding uncured polymer to said cure vessel and intermittently removing polymer from the cure vessel wherein the removal of polymer from the cure vessel is performed at intervals such that the presence of uncured polymer is minimized or avoided.

    摘要翻译: 提供了一种通过实现和维持固化容器中的固化条件来固化聚(亚芳基硫醚)聚合物的方法,然后将未固化的聚合物间歇地加入到所述固化容器中并从固化容器中间歇地除去聚合物,其中从固化容器中除去聚合物是 间隔进行,使得未固化的聚合物的存在被最小化或避免。