-
公开(公告)号：US20120319318A1
公开(公告)日：2012-12-20
申请号：US13466182
申请日：2012-05-08
IPC分类号： B29C47/76
CPC分类号： C08F6/005 , B29B9/06 , B29B9/065 , B29C47/369 , C08F6/003 , C08F6/10 , C08F6/28 , C08J3/12 , C08J2323/14 , C08L23/00
摘要： Methods and systems for pelletizing low molecular weight semi-crystalline polymers are provided herein. Polymer compositions comprising the semi-crystalline polymer and a solvent are provided to a devolatilizing device, where the solvent is at least partially evaporated under vacuum conditions, resulting in removal of heat from the polymer by evaporative cooling and crystallization of the polymer. Once the polymer has reached the desired temperature, the polymer exits the devolatilizer and is pelletized. Semi-crystalline polymers that may be used in the present invention include propylene-based copolymers, such as propylene-ethylene and propylene-hexene copolymers having a heat of fusion, Hf, from about 5 to about 75 J/g and a weight average molecular weight, Mw, from about 10,000 to about 200,000 g/mol.
摘要翻译： 本文提供了用于造粒低分子量半结晶聚合物的方法和系统。 将包含半结晶聚合物和溶剂的聚合物组合物提供给脱挥发分装置，其中溶剂在真空条件下至少部分蒸发，导致通过蒸发冷却和聚合物结晶从聚合物中除去热量。 一旦聚合物达到所需温度，聚合物就离开脱挥发物并造粒。 可用于本发明的半结晶聚合物包括基于丙烯的共聚物，例如丙烯 - 乙烯和丙烯 - 己烯共聚物，其熔融热，Hf为约5至约75J / g，重均分子量 重量，Mw，约10,000至约200,000g / mol。
-
公开(公告)号：US09296837B2
公开(公告)日：2016-03-29
申请号：US13466182
申请日：2012-05-08
CPC分类号： C08F6/005 , B29B9/06 , B29B9/065 , B29C47/369 , C08F6/003 , C08F6/10 , C08F6/28 , C08J3/12 , C08J2323/14 , C08L23/00
摘要： Methods and systems for pelletizing low molecular weight semi-crystalline polymers are provided herein. Polymer compositions comprising the semi-crystalline polymer and a solvent are provided to a devolatilizing device, where the solvent is at least partially evaporated under vacuum conditions, resulting in removal of heat from the polymer by evaporative cooling and crystallization of the polymer. Once the polymer has reached the desired temperature, the polymer exits the devolatilizer and is pelletized. Semi-crystalline polymers that may be used in the present invention include propylene-based copolymers, such as propylene-ethylene and propylene-hexene copolymers having a heat of fusion, Hf, from about 5 to about 75 J/g and a weight average molecular weight, Mw, from about 10,000 to about 200,000 g/mol.
摘要翻译： 本文提供了用于造粒低分子量半结晶聚合物的方法和系统。 将包含半结晶聚合物和溶剂的聚合物组合物提供给脱挥发分装置，其中溶剂在真空条件下至少部分蒸发，导致通过蒸发冷却和聚合物结晶从聚合物中除去热量。 一旦聚合物达到所需温度，聚合物就离开脱挥发物并造粒。 可用于本发明的半结晶聚合物包括基于丙烯的共聚物，例如丙烯 - 乙烯和丙烯 - 己烯共聚物，其熔融热，Hf为约5至约75J / g，重均分子量 重量，Mw，约10,000至约200,000g / mol。
-
公开(公告)号：US09109143B2
公开(公告)日：2015-08-18
申请号：US13819825
申请日：2011-10-12
申请人： Mun Fu Tse , Cynthia A. Mitchell , Sudhin Datta
发明人： Mun Fu Tse , Cynthia A. Mitchell , Sudhin Datta
IPC分类号： C08L53/00 , B01F17/00 , C08F112/08 , C09J123/14 , C08L23/10 , C09J123/10 , C08L23/14
CPC分类号： C09J123/14 , C08L23/10 , C08L23/14 , C08L2205/02 , C08L2666/06 , C09J123/10
摘要： The present invention is related to adhesive compositions and their applications. In particular, the adhesive compositions described herein comprise a two or more propylene-based copolymers with varying comonomer content.
摘要翻译： 本发明涉及粘合剂组合物及其用途。 特别地，本文所述的粘合剂组合物包含具有不同共聚单体含量的两种或更多种丙烯基共聚物。
-
公开(公告)号：US20130225752A1
公开(公告)日：2013-08-29
申请号：US13819825
申请日：2011-10-12
申请人： Mun Fu Tse , Cynthia A. Mitchell , Sudhin Datta
发明人： Mun Fu Tse , Cynthia A. Mitchell , Sudhin Datta
IPC分类号： C09J123/14
CPC分类号： C09J123/14 , C08L23/10 , C08L23/14 , C08L2205/02 , C08L2666/06 , C09J123/10
摘要： The present invention is related to adhesive compositions and their applications. In particular, the adhesive compositions described herein comprise a two or more propylene-based copolymers with varying comonomer content.
摘要翻译： 本发明涉及粘合剂组合物及其用途。 特别地，本文所述的粘合剂组合物包含具有不同共聚单体含量的两种或更多种丙烯基共聚物。
-
公开(公告)号：US07718743B2
公开(公告)日：2010-05-18
申请号：US12184681
申请日：2008-08-01
CPC分类号： C08F10/00 , B01J2219/00252 , B01J2219/00254 , C08F110/02 , Y10S526/918 , C08F2/004 , C08F2/34 , C08F2500/07
摘要： Methods and system for in-situ measurement of polymer growth within an olefin polymerization reactor are provided. The method includes polymerizing one or more olefins within a reactor at a first temperature sufficient to deposit a polymer coating therein. A second temperature is created within the reactor, and a rate of temperature change is measured from the first temperature to the second temperature. The rate of temperature change is correlated to a thickness of the polymer coating deposited within the reactor.
摘要翻译： 提供了在烯烃聚合反应器内原位测量聚合物生长的方法和系统。 该方法包括在足以在其中沉积聚合物涂层的第一温度下在反应器内聚合一种或多种烯烃。 在反应器内产生第二温度，并且从第一温度到第二温度测量温度变化率。 温度变化的速率与沉积在反应器内的聚合物涂层的厚度相关。
-
6.发明申请公开(公告)号：US20090163666A1
公开(公告)日：2009-06-25
申请号：US12316760
申请日：2008-12-16
CPC分类号： B29C55/00 , B29C48/0018 , B29C48/022 , B29C48/05 , B29C48/08 , B29K2023/0625 , B29K2105/0088 , C08C19/02 , C08L15/00 , C08L23/0815 , C08L2666/08
摘要： Provided is a polymer composition having a linear, semi-crystalline thermoplastic matrix polymer and a second thermoplastic polymer. The second polymer is a substantially saturated hydrocarbon polymer including (i) a backbone chain and (ii) one or more substantially hydrocarbon sidechains connected to the backbone chain. The sidechains each have a number-average molecular weight of from 2,500 g/mol to 125,000 g/mol and an MWD by SEC of 1.0 to 3.5. The mass ratio of sidechain molecular mass to backbone molecular mass is from 0.01:1 to 100:1. The matrix polymer is present at 95 wt % or more based on the weight of the composition. The second polymer is present at 0.2 to 5.0 wt % or more based on the weight of the composition. Provided is also a method for enhancing flow-induced crystallization in a linear, semi-crystalline thermoplastic matrix polymer. Provided is also a method for processing a polymer composition.
摘要翻译： 提供了具有线性，半结晶热塑性基质聚合物和第二热塑性聚合物的聚合物组合物。 第二聚合物是基本上饱和的烃聚合物，包括（i）主链和（ii）连接到主链上的一个或多个基本上是烃的侧链。 侧链各自的数均分子量为2500g / mol至125,000g / mol，SEC的MWD为1.0至3.5。 侧链分子量与骨架分子量的质量比为0.01：1〜100：1。 基于组合物的重量，基质聚合物的存在量为95重量％以上。 基于组合物的重量，第二聚合物的含量为0.2〜5.0重量％以上。 提供了一种用于在线性半结晶热塑性基质聚合物中增强流动诱导结晶的方法。 还提供了一种加工聚合物组合物的方法。
-
公开(公告)号：US20100029865A1
公开(公告)日：2010-02-04
申请号：US12184681
申请日：2008-08-01
CPC分类号： C08F10/00 , B01J2219/00252 , B01J2219/00254 , C08F110/02 , Y10S526/918 , C08F2/004 , C08F2/34 , C08F2500/07
摘要： Methods and system for in-situ measurement of polymer growth within an olefin polymerization reactor are provided. The method includes polymerizing one or more olefins within a reactor at a first temperature sufficient to deposit a polymer coating therein. A second temperature is created within the reactor, and a rate of temperature change is measured from the first temperature to the second temperature. The rate of temperature change is correlated to a thickness of the polymer coating deposited within the reactor.
摘要翻译： 提供了在烯烃聚合反应器内原位测量聚合物生长的方法和系统。 该方法包括在足以在其中沉积聚合物涂层的第一温度下在反应器内聚合一种或多种烯烃。 在反应器内产生第二温度，并且从第一温度到第二温度测量温度变化率。 温度变化的速率与沉积在反应器内的聚合物涂层的厚度相关。
-
公开(公告)号：US08455583B2
公开(公告)日：2013-06-04
申请号：US11659407
申请日：2005-08-02
IPC分类号： C08K3/04
摘要： The present invention is directed to carbon nanotube (CNT)/polymer composites, i.e., nanocomposites, wherein the CNTs in such nanocomposites are highly dispersed in a polymer matrix, and wherein the nanocomposites comprise a compatibilizing surfactant that interacts with both the CNTs and the polymer matrix. The present invention is also directed to methods of making these nanocomposites. In some such methods, the compatibilizing surfactant provides initial CNT dispersion and subsequent mixing with a polymer. The present invention is also directed to methods of using these nanocomposites in a variety of applications.
-
公开(公告)号：US07879940B2
公开(公告)日：2011-02-01
申请号：US10561253
申请日：2004-06-21
CPC分类号： C08F4/484 , B82Y30/00 , B82Y40/00 , C01B32/174 , C01B2202/02 , C08F2/00 , C08F112/08 , C08F292/00 , C08K3/041 , C08K9/04 , C08L67/04
摘要： The present invention is directed to aryl halide (such as aryl bromide) functionalized carbon nanotubes that can be utilized in anionic polymerization processes to form polymer-carbon nanotube materials with improved dispersion ability in polymer matrices. In this process the aryl halide is reacted with an alkyllithium species or is reacted with a metal to replace the aryl-bromine bond with an aryl-lithium or aryl-metal bond, respectively. It has further been discovered that other functionalized carbon nanotubes, after deprotonation with a deprotonation agent, can similarly be utilized in anionic polymerization processes to form polymer-carbon nanotube materials. Additionally or alternatively, a ring opening polymerization process can be performed. The resultant materials can be used by themselves due to their enhanced strength and reinforcement ability when compared to their unbound polymer analogs. Additionally, these materials can also be blended with pre-formed polymers to establish compatibility and enhanced dispersion of nanotubes in otherwise hard to disperse matrices resulting in significantly improved material properties. The resultant polymer-carbon nanotube materials can also be used in drug delivery processes due to their improved dispersion ability and biodegradability, and can also be used for scaffolding to promote cellular growth of tissue.
摘要翻译： 本发明涉及可用于阴离子聚合方法形成聚合物 - 碳纳米管材料的芳族卤化物（例如芳基溴）官能化碳纳米管，其具有改进的聚合物基质中的分散能力。 在该方法中，芳基卤化物与烷基锂物质反应，或与金属反应，分别用芳基 - 锂或芳基 - 金属键代替芳基 - 溴键。 还已经发现，其它官能化碳纳米管在去质子化脱质子化之后，可以类似地用于阴离子聚合方法中以形成聚合物 - 碳纳米管材料。 另外地或替代地，可以进行开环聚合过程。 所得材料由于与未结合的聚合物类似物相比具有增强的强度和增强能力，可以自己使用。 另外，这些材料也可以与预先形成的聚合物混合以建立纳米管在其它难分散的基质中的相容性和增强的分散，导致显着改善的材料性质。 所得到的聚合物 - 碳纳米管材料由于其改进的分散能力和生物降解性也可用于药物递送过程中，并且也可用于支架以促进组织的细胞生长。
-
公开(公告)号：US20090030090A1
公开(公告)日：2009-01-29
申请号：US11659407
申请日：2005-08-02
摘要： The present invention is directed to carbon nanotube (CNT)/polymer composites, i.e., nanocomposites, wherein the CNTs in such nanocomposites are highly dispersed in a polymer matrix, and wherein the nanocomposites comprise a compatibilizing surfactant that interacts with both the CNTs and the polymer matrix. The present invention is also directed to methods of making these nanocomposites. In some such methods, the compatibilizing surfactant provides initial CNT dispersion and subsequent mixing with a polymer. The present invention is also directed to methods of using these nanocomposites in a variety of applications.
摘要翻译： 本发明涉及碳纳米管（CNT）/聚合物复合材料，即纳米复合材料，其中这种纳米复合材料中的CNT被高度分散在聚合物基体中，并且其中纳米复合材料包含与CNT和聚合物相互作用的相容性表面活性剂 矩阵。 本发明还涉及制备这些纳米复合材料的方法。 在一些这样的方法中，相容性表面活性剂提供初始的CNT分散并随后与聚合物混合。 本发明还涉及在各种应用中使用这些纳米复合材料的方法。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.024 秒)
