Expandable Polystyrene and Methods of Forming the Same
    2.
    发明申请
    Expandable Polystyrene and Methods of Forming the Same 审中-公开
    可膨胀聚苯乙烯及其形成方法

    公开(公告)号:US20110306689A1

    公开(公告)日:2011-12-15

    申请号:US12796747

    申请日:2010-06-09

    Abstract: Expanded polystyrene, foamed articles and methods of making the same are described herein. The expanded polystyrene generally includes polystyrene selected from expandable polystyrene and extrusion polystyrene, the polystyrene exhibiting a molecular weight of from about 130,000 Daltons to about 220,000 Daltons; a melt flow index of from about 20 to about 30 and a density of from about 0.1 lb/ft3 to about 10 lb/ft3; and wherein the expanded polystyrene exhibits a density of from about 0.1 lb/ft3 to about 10 lb/ft3.

    Abstract translation: 膨胀聚苯乙烯,发泡制品及其制备方法在本文中描述。 发泡聚苯乙烯通常包括选自可发性聚苯乙烯和挤出聚苯乙烯的聚苯乙烯,聚苯乙烯的分子量为约130,000道尔顿至约220,000道尔顿; 熔体流动指数为约20至约30,密度为约0.1lb / ft 3至约10lb / ft 3; 并且其中所述发泡聚苯乙烯的密度为约0.1lb / ft 3至约10lb / ft 3。

    Production of polystyrene for foaming applications using a combination of peroxide initiators
    3.
    发明申请
    Production of polystyrene for foaming applications using a combination of peroxide initiators 审中-公开
    使用过氧化物引发剂的组合生产用于发泡应用的聚苯乙烯

    公开(公告)号:US20070135529A1

    公开(公告)日:2007-06-14

    申请号:US11654425

    申请日:2007-01-17

    Abstract: It has been discovered that improved polystyrene products may be obtained by polymerizing styrene in the presence of at least one multifunctional initiator that is trifunctional or tetrafunctional and at least one lower functionality initiator that is difunctional or monofunctional. These polymers may have increased Mz, increased MFI, and increased MWD. Optionally the resin may include at least one chain transfer agent, at least one cross-linking agent and/or a styrene-conjugated diene-styrene block copolymer. The presence of the multifunctional initiator tends to cause more branched structures in the polystyrene.

    Abstract translation: 已经发现,通过在至少一种具有三官能或四官能的多官能引发剂和至少一种作为二官能或单官能团的低官能度引发剂的存在下聚合苯乙烯,可以获得改进的聚苯乙烯产物。 这些聚合物可能具有增加的Mz,增加的MFI和增加的MWD。 任选地,树脂可以包括至少一种链转移剂,至少一种交联剂和/或苯乙烯 - 共轭二烯 - 苯乙烯嵌段共聚物。 多官能引发剂的存在倾向于在聚苯乙烯中引起更多的支化结构。

    Low temperature initiators for improving the rubber phase volume of HIPS formulations
    4.
    发明申请
    Low temperature initiators for improving the rubber phase volume of HIPS formulations 有权
    用于改善HIPS配方橡胶相体积的低温引发剂

    公开(公告)号:US20070100079A1

    公开(公告)日:2007-05-03

    申请号:US11262641

    申请日:2005-10-31

    CPC classification number: C08F279/02 C08L51/04 C08L2666/02

    Abstract: Peroxide initiators are disclosed that can be used at lower temperatures during HIPS production. Enhanced formation of graft polymers between polystyrene and polybutadiene (rubber) can be accomplished by using these lower temperature peroxide initiators that have a 1 hour half-life period at one or more temperatures from 95° C. to less than 111° C. during the pre-inversion stage. “Higher” temperature initiators are used during and/or after inversion. The use of such “low” temperature initiators improves polymerization rates and grafting values, while reducing the swell index and the amount of rubber used, thereby producing improved HIPS more rapidly and at a lower cost. Also disclosed are HIPS compositions and products produced by such “low” temperature initiators as well as a method of producing improved HIPS.

    Abstract translation: 公开了可以在HIPS生产期间在较低温度下使用的过氧化物引发剂。 在聚苯乙烯和聚丁二烯(橡胶)之间增强的接枝聚合物的形成可以通过使用这些低温过氧化物引发剂来实现,该引发剂在一个或多个温度从95℃到小于111℃的时间内具有1小时的半衰期 预转换阶段。 在反转期间和/或之后使用“较高”的温度引发剂。 使用这种“低”温度引发剂提高了聚合速率和接枝值,同时降低了溶胀指数和使用的橡胶的量,从而以更低的成本更快速地生产改进的HIPS。 还公开了由这种“低”温度引发剂生产的HIPS组合物和产物以及生产改进的HIPS的方法。

    PELLETIZING HIGH MELT FLOW POLYSTYRENE
    7.
    发明申请
    PELLETIZING HIGH MELT FLOW POLYSTYRENE 审中-公开
    高灵敏度流动聚苯乙烯(PELLETIZING HIGH MELT FLOW POLYSTYRENE)

    公开(公告)号:US20120205833A1

    公开(公告)日:2012-08-16

    申请号:US13025229

    申请日:2011-02-11

    CPC classification number: B29B9/06 B29C48/05

    Abstract: Methods and systems for pelletizing high melt flow polystyrene are described herein. The method generally includes providing a polystyrene including a melt flow index of about 16 g/10 min to about 34 g/10 min; extruding a strand of the polystyrene through a die head, wherein a temperature of the polystyrene at the die head is from about 370° to about 430° F.; and moving the strand through a bath, wherein a temperature of the bath is from about 95° to about 145° F.

    Abstract translation: 本文描述了用于造粒高熔体流动聚苯乙烯的方法和系统。 该方法通常包括提供包含约16g / 10min至约34g / 10min的熔体流动指数的聚苯乙烯; 通过模头挤出聚苯乙烯股线,其中模头处的聚苯乙烯的温度为约370°至约430°F; 并且将所述线移动通过浴,其中所述浴的温度为约95°至约145°F。

    Styrenic polymer compositions and methods of making and using same
    8.
    发明授权
    Styrenic polymer compositions and methods of making and using same 失效
    苯乙烯聚合物组合物及其制备和使用方法

    公开(公告)号:US08093308B2

    公开(公告)日:2012-01-10

    申请号:US12363418

    申请日:2009-01-30

    Abstract: A method comprising contacting a first styrenic polymer composition comprising residual styrene monomer with a molecular sieve, and recovering a second styrenic polymer composition comprising a reduced amount of residual styrene monomer. A composition comprising a styrenic polymer having a residual styrene monomer amount of less than 100 ppm produced by contacting a styrenic polymer composition having a residual styrene monomer amount of equal to or greater than 100 ppm with a molecular sieve, and recovering the styrenic polymer having a residual styrene monomer amount of less than 100 ppm. A method comprising providing a styrenic polymer composition having a residual styrene monomer amount of equal to or greater than 100 ppm, contacting the styrenic polymer composition with a molecular sieve, adding a nucleating agent, a foaming agent, and a coloring agent to the styrenic polymer composition, and forming an expanded styrenic polymer composition having a residual styrene monomer amount of less than 100 ppm.

    Abstract translation: 一种方法,包括使包含残余苯乙烯单体的第一苯乙烯聚合物组合物与分子筛接触,并回收包含减少量的残余苯乙烯单体的第二苯乙烯聚合物组合物。 通过使具有等于或大于100ppm的残余苯乙烯单体量的苯乙烯类聚合物组合物与分子筛接触而制备的具有小于100ppm的残留苯乙烯单体量的苯乙烯类聚合物的组合物,并回收具有 残余苯乙烯单体量小于100ppm。 一种方法,包括提供具有等于或大于100ppm的残余苯乙烯单体量的苯乙烯聚合物组合物,使苯乙烯聚合物组合物与分子筛接触,向苯乙烯聚合物中加入成核剂,发泡剂和着色剂 并且形成具有小于100ppm的残余苯乙烯单体量的膨胀的苯乙烯聚合物组合物。

    Foamed Articles Exhibiting Improved Thermal Properties
    9.
    发明申请
    Foamed Articles Exhibiting Improved Thermal Properties 有权
    展示改善热性能的发泡制品

    公开(公告)号:US20110306691A1

    公开(公告)日:2011-12-15

    申请号:US13153776

    申请日:2011-06-06

    Abstract: Cellular and multi-cellular polystyrene and polystyrenic foams and methods of forming such foams are disclosed. The foams include an expanded polystyrene formed from expansion of an expandable polystyrene including an adsorbent comprising alumina, wherein the multi-cellular polystyrene exhibits a multi-cellular size distribution. The process for forming a foamed article includes providing a formed styrenic polymer and contacting the formed styrenic polymer with a first blowing agent and an adsorbent comprising alumina to form extrusion polystyrene. The process further includes forming the extrusion styrenic polymer into an expanded styrenic polymer and forming the expanded styrenic polymer into a foamed article.

    Abstract translation: 公开了细胞和多细胞聚苯乙烯和聚苯乙烯泡沫以及形成这种泡沫的方法。 泡沫包括由可膨胀聚苯乙烯膨胀形成的发泡聚苯乙烯,其包括包含氧化铝的吸附剂,其中多孔聚苯乙烯表现出多孔尺寸分布。 形成发泡制品的方法包括提供形成的苯乙烯类聚合物并使形成的苯乙烯类聚合物与第一发泡剂和包含氧化铝的吸附剂接触以形成挤出聚苯乙烯。 该方法还包括将挤出苯乙烯聚合物形成膨胀的苯乙烯聚合物,并将膨胀的苯乙烯聚合物形成发泡制品。

    Styrenic polymer compositions and methods of making and using same
    10.
    发明申请
    Styrenic polymer compositions and methods of making and using same 失效
    苯乙烯聚合物组合物及其制备和使用方法

    公开(公告)号:US20100197819A1

    公开(公告)日:2010-08-05

    申请号:US12363418

    申请日:2009-01-30

    Abstract: A method comprising contacting a first styrenic polymer composition comprising residual styrene monomer with a molecular sieve, and recovering a second styrenic polymer composition comprising a reduced amount of residual styrene monomer. A composition comprising a styrenic polymer having a residual styrene monomer amount of less than 100 ppm produced by contacting a styrenic polymer composition having a residual styrene monomer amount of equal to or greater than 100 ppm with a molecular sieve, and recovering the styrenic polymer having a residual styrene monomer amount of less than 100 ppm. A method comprising providing a styrenic polymer composition having a residual styrene monomer amount of equal to or greater than 100 ppm, contacting the styrenic polymer composition with a molecular sieve, adding a nucleating agent, a foaming agent, and a coloring agent to the styrenic polymer composition, and forming an expanded styrenic polymer composition having a residual styrene monomer amount of less than 100 ppm.

    Abstract translation: 一种方法,包括使包含残余苯乙烯单体的第一苯乙烯聚合物组合物与分子筛接触,并回收包含减少量的残余苯乙烯单体的第二苯乙烯聚合物组合物。 通过使具有等于或大于100ppm的残余苯乙烯单体量的苯乙烯类聚合物组合物与分子筛接触而制备的具有小于100ppm的残余苯乙烯单体量的苯乙烯类聚合物的组合物,并回收具有 残余苯乙烯单体量小于100ppm。 一种方法,包括提供具有等于或大于100ppm的残余苯乙烯单体量的苯乙烯聚合物组合物,使苯乙烯聚合物组合物与分子筛接触,向苯乙烯聚合物中加入成核剂,发泡剂和着色剂 并且形成具有小于100ppm的残余苯乙烯单体量的膨胀的苯乙烯聚合物组合物。

Patent Agency Ranking