Expandable Polystyrene and Methods of Forming the Same
    12.
    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

    IPC分类号: C08J9/16 C08J9/228

    摘要: 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.

    摘要翻译: 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。

    Low temperature initiators for improving the rubber phase volume of HIPS formulations
    13.
    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

    IPC分类号: C08F263/00

    摘要: 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.

    摘要翻译: 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。

    Method for removing volatiles from a block copolymer
    14.
    发明授权
    Method for removing volatiles from a block copolymer 失效
    从嵌段共聚物中除去挥发物的方法

    公开(公告)号:US06962960B1

    公开(公告)日:2005-11-08

    申请号:US10044759

    申请日:2002-01-09

    IPC分类号: C08F2/06 C08F6/00

    CPC分类号: C08F6/003 C08L53/02

    摘要: A method and apparatus are disclosed for purifying copolymer compounds having monovinyl aromatic blocks and conjugated diene blocks by reducing the residual monomer content of the finished polymer. The method and apparatus includes a combination of heat exchangers and devolatilizers used in conjunction with a copolymerization reactor system.

    摘要翻译: 公开了通过降低成品聚合物的残留单体含量来纯化具有单乙烯基芳族嵌段和共轭二烯嵌段的共聚物化合物的方法和装置。 该方法和装置包括与共聚反应器系统结合使用的热交换器和脱挥发分剂的组合。

    Polystyrene blends and a method of making same
    16.
    发明申请
    Polystyrene blends and a method of making same 失效
    聚苯乙烯共混物及其制备方法

    公开(公告)号:US20050070669A1

    公开(公告)日:2005-03-31

    申请号:US10674034

    申请日:2003-09-29

    申请人: Jose Sosa

    发明人: Jose Sosa

    IPC分类号: C08L25/02

    摘要: Disclosed are blends of polystyrene and at least one of syndiotactic polypropylene, ethylene propylene copolymers, and styrene-butadiene-styrene triblock copolymers. These blends are prepared using solution polymerization and have unique morphologies and desirable physical properties. The blends can also be prepared with graft-promoting or crosslinking agents and rubbers to prepare modified high impact polystyrene.

    摘要翻译: 公开了聚苯乙烯和间同立构聚丙烯,乙烯丙烯共聚物和苯乙烯 - 丁二烯 - 苯乙烯三嵌段共聚物中的至少一种的共混物。 这些共混物使用溶液聚合制备,并具有独特的形态和所需的物理性质。 共混物也可以用接枝促进剂或交联剂和橡胶制备以制备改性的高抗冲聚苯乙烯。

    High impact polystyrene and process for preparing same
    17.
    发明申请
    High impact polystyrene and process for preparing same 失效
    高抗冲聚苯乙烯及其制备方法

    公开(公告)号:US20050070662A1

    公开(公告)日:2005-03-31

    申请号:US10674224

    申请日:2003-09-29

    申请人: Jose Sosa Billy Ellis

    发明人: Jose Sosa Billy Ellis

    摘要: Disclosed are high impact polystyrenes prepared using mixed initiators. The mixed initiators include at least one grafting initiator and one non-grafting initiator. The high impact polystyrenes prepared therewith have a continuous polystyrene phase and dispersed therein particles of rubber predominantly having a honeycomb structure of rubber with polystyrene inclusions.

    摘要翻译: 公开了使用混合引发剂制备的高抗冲聚苯乙烯。 混合的引发剂包括至少一个接枝引发剂和一个非接枝引发剂。 由此制备的高冲击性聚苯乙烯具有连续的聚苯乙烯相,并且在其中分散有主要具有具有聚苯乙烯夹杂物的橡胶的蜂窝结构的橡胶颗粒。

    PELLETIZING HIGH MELT FLOW POLYSTYRENE
    20.
    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

    IPC分类号: B29C47/08

    CPC分类号: B29B9/06 B29C48/05

    摘要: 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.

    摘要翻译: 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。