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公开(公告)号：US09045685B2
公开(公告)日：2015-06-02
申请号：US13594923
申请日：2012-08-27
IPC分类号： C09K19/54 , C09K19/30 , C09K19/32 , C09K19/34 , C09K19/38 , C08L77/12 , B29C39/00 , C09K19/22 , C09K19/48 , C08K5/20 , C08K5/3492 , C09K19/04
CPC分类号： C09K19/54 , B29C39/006 , C08K5/20 , C08K5/34922 , C08L77/12 , C09K19/22 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/48 , C09K2019/0481
摘要： A molded part having a predetermined shape is provided. The molded part may be formed by casting a liquid crystalline polymer composition into a mold cavity at a relatively low shear rate. Due to the use of a relatively low shear rate, the polymer composition does not generally undergo extensive shear orientation, which can allow the resulting part to be further processed using standard finishing techniques. The ability to use relatively low shear rates during casting is achieved in the present invention through the use of an aromatic amide oligomer. More particularly, the present inventors have discovered that the aromatic amide oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix to “ultralow” levels without having a significant impact on the mechanical properties.
摘要翻译： 提供具有预定形状的模制件。 模制部件可以通过将液晶聚合物组合物以相对低的剪切速率浇铸到模腔中而形成。 由于使用相对低的剪切速率，聚合物组合物通常不经受广泛的剪切取向，这可以允许使用标准精整技术进一步处理所得到的部分。 在本发明中通过使用芳族酰胺低聚物实现了在铸造过程中使用相对低的剪切速率的能力。 更具体地，本发明人已经发现，通过改变分子间聚合物链相互作用，芳族酰胺低聚物可以用作流动助剂，从而将聚合物基体的总体粘度降低到“超低”水平，而对机械性能没有显着的影响。
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2.发明授权Heat-resistant liquid crystalline polymer composition having a low melting temperature 有权具有低熔融温度的耐热性液晶聚合物组合物公开(公告)号：US08906258B2
公开(公告)日：2014-12-09
申请号：US13594904
申请日：2012-08-27
IPC分类号： C09K19/38 , C09K19/22 , C09K19/30 , C09K19/32 , C09K19/34 , C09K19/20 , C09K19/12 , C09K19/48 , C09K19/04
CPC分类号： C09K19/22 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/48 , C09K2019/0481
摘要： A thermotropic liquid crystalline polymer composition capable of exhibiting both a low melting temperature and good heat resistance without the use of conventional naphthenic acids is provided. The melting temperature may, for example, range from about 250° C. to about 400° C. Even at such low melting temperatures, the present inventors have surprisingly discovered that the ratio of the deflection temperature under load (“DTUL”), a measure of short term heat resistance, to the melting temperature may remain relatively high. The specific DTUL values may range from about 200° C. to about 300° C. The ability to form a polymer composition with the properties noted above may be achieved, at least in part, by the use of an aromatic amide oligomer.
摘要翻译： 本发明提供能够不使用常规环烷酸而具有低熔点和良好耐热性的热致液晶聚合物组合物。 熔融温度例如可以在约250℃至约400℃的范围内。即使在这样的低熔点温度下，本发明人惊奇地发现，负载下的挠曲温度（“DTUL”）， 测量短期耐热性，对熔化温度可能保持较高。 特定的DTUL值可以在约200℃至约300℃的范围内。形成具有上述性质的聚合物组合物的能力可以至少部分地通过使用芳族酰胺低聚物来实现。
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公开(公告)号：US20130048909A1
公开(公告)日：2013-02-28
申请号：US13594905
申请日：2012-08-27
IPC分类号： C09K19/54
CPC分类号： C09K19/22 , C08L77/12 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/3809 , C09K19/48 , C09K2019/0481
摘要： A liquid crystalline polymer composition that contains a liquid crystalline polymer and an aromatic amide oligomer is provided. The oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. The oligomer is also not easily volatized or decomposed during compounding, molding, and/or use, which minimizes off-gassing and the formation of blisters that would otherwise impact the final mechanical properties of a part made from the polymer composition. While providing the benefits noted, the aromatic amide oligomer does not generally react with the polymer backbone of the liquid crystalline polymer to any appreciable extent so that the mechanical properties of the polymer are not adversely impacted.
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公开(公告)号：US09051514B2
公开(公告)日：2015-06-09
申请号：US13594900
申请日：2012-08-27
IPC分类号： C09K19/54 , C09K19/32 , C09K19/30 , C08L77/12 , C09K19/38 , C09K19/22 , C09K19/34 , C09K19/48 , C09K19/04
CPC分类号： C09K19/22 , C08L77/12 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/3809 , C09K19/48 , C09K2019/0481
摘要： A liquid crystalline polymer composition that contains a liquid crystalline polymer and an aromatic amide oligomer is provided. The oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. The oligomer is also not easily volatized or decomposed during compounding, molding, and/or use, which minimizes off-gassing and the formation of blisters that would otherwise impact the final mechanical properties of a part made from the polymer composition. While providing the benefits noted, the aromatic amide oligomer does not generally react with the polymer backbone of the liquid crystalline polymer to any appreciable extent so that the mechanical properties of the polymer are not adversely impacted.
摘要翻译： 提供含有液晶聚合物和芳香族酰胺低聚物的液晶聚合物组合物。 通过改变分子间聚合物链相互作用，低聚物可以用作流动助剂，从而降低聚合物基体在剪切下的总粘度。 低聚物在复合，模制和/或使用期间也不容易挥发或分解，这最小化气泡的脱气和形成，否则会影响由聚合物组合物制成的部件的最终机械性能。 在提供所提及的优点的同时，芳族酰胺低聚物通常不会与液晶聚合物的聚合物主链反应任何明显的程度，使得聚合物的机械性能不会受到不利影响。
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公开(公告)号：US20130062558A1
公开(公告)日：2013-03-14
申请号：US13594923
申请日：2012-08-27
CPC分类号： C09K19/54 , B29C39/006 , C08K5/20 , C08K5/34922 , C08L77/12 , C09K19/22 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/48 , C09K2019/0481
摘要： A molded part having a predetermined shape is provided. The molded part may be formed by casting a liquid crystalline polymer composition into a mold cavity at a relatively low shear rate. Due to the use of a relatively low shear rate, the polymer composition does not generally undergo extensive shear orientation, which can allow the resulting part to be further processed using standard finishing techniques. The ability to use relatively low shear rates during casting is achieved in the present invention through the use of an aromatic amide oligomer. More particularly, the present inventors have discovered that the aromatic amide oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix to “ultralow” levels without having a significant impact on the mechanical properties.
摘要翻译： 提供具有预定形状的模制件。 模制部件可以通过将液晶聚合物组合物以相对低的剪切速率浇铸到模腔中而形成。 由于使用相对低的剪切速率，聚合物组合物通常不经受广泛的剪切取向，这可以允许使用标准精整技术进一步处理所得到的部分。 在本发明中通过使用芳族酰胺低聚物实现了在铸造过程中使用相对低的剪切速率的能力。 更具体地，本发明人已经发现，通过改变分子间聚合物链相互作用，芳族酰胺低聚物可以用作流动助剂，从而将聚合物基体的总体粘度降低到超低水平，而不会对机械性能产生显着的影响。
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公开(公告)号：US09096794B2
公开(公告)日：2015-08-04
申请号：US13594905
申请日：2012-08-27
IPC分类号： C09K19/54 , C09K19/38 , C09K19/22 , C08L77/12 , C09K19/30 , C09K19/32 , C09K19/34 , C09K19/48 , C09K19/04
CPC分类号： C09K19/22 , C08L77/12 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/3809 , C09K19/48 , C09K2019/0481
摘要： A liquid crystalline polymer composition that contains a liquid crystalline polymer and an aromatic amide oligomer is provided. The oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. The oligomer is also not easily volatized or decomposed during compounding, molding, and/or use, which minimizes off-gassing and the formation of blisters that would otherwise impact the final mechanical properties of a part made from the polymer composition. While providing the benefits noted, the aromatic amide oligomer does not generally react with the polymer backbone of the liquid crystalline polymer to any appreciable extent so that the mechanical properties of the polymer are not adversely impacted.
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公开(公告)号：US20130048914A1
公开(公告)日：2013-02-28
申请号：US13594900
申请日：2012-08-27
IPC分类号： C09K19/42
CPC分类号： C09K19/22 , C08L77/12 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/3809 , C09K19/48 , C09K2019/0481
摘要： A liquid crystalline polymer composition that contains a liquid crystalline polymer and an aromatic amide oligomer is provided. The oligomer can serve as a flow aid by altering intermolecular polymer chain interactions, thereby lowering the overall viscosity of the polymer matrix under shear. The oligomer is also not easily volatized or decomposed during compounding, molding, and/or use, which minimizes off-gassing and the formation of blisters that would otherwise impact the final mechanical properties of a part made from the polymer composition. While providing the benefits noted, the aromatic amide oligomer does not generally react with the polymer backbone of the liquid crystalline polymer to any appreciable extent so that the mechanical properties of the polymer are not adversely impacted.
摘要翻译： 提供含有液晶聚合物和芳香族酰胺低聚物的液晶聚合物组合物。 通过改变分子间聚合物链相互作用，低聚物可以用作流动助剂，从而降低聚合物基体在剪切下的总粘度。 低聚物在复合，模制和/或使用期间也不容易挥发或分解，这最小化气泡的脱气和形成，否则会影响由聚合物组合物制成的部件的最终机械性能。 在提供所提及的优点的同时，芳族酰胺低聚物通常不会与液晶聚合物的聚合物主链反应任何明显的程度，使得聚合物的机械性能不会受到不利影响。
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8.发明申请Heat-Resistant Liquid Crystalline Polymer Composition having a Low Melting Temperature 有权具有低熔融温度的耐热液晶聚合物组合物公开(公告)号：US20130048908A1
公开(公告)日：2013-02-28
申请号：US13594904
申请日：2012-08-27
CPC分类号： C09K19/22 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/48 , C09K2019/0481
摘要： A thermotropic liquid crystalline polymer composition capable of exhibiting both a low melting temperature and good heat resistance without the use of conventional naphthenic acids is provided. The melting temperature may, for example, range from about 250° C. to about 400° C. Even at such low melting temperatures, the present inventors have surprisingly discovered that the ratio of the deflection temperature under load (“DTUL”), a measure of short term heat resistance, to the melting temperature may remain relatively high. The specific DTUL values may range from about 200° C. to about 300° C. The ability to form a polymer composition with the properties noted above may be achieved, at least in part, by the use of an aromatic amide oligomer.
摘要翻译： 本发明提供能够不使用常规环烷酸而具有低熔点和良好耐热性的热致液晶聚合物组合物。 熔融温度例如可以在约250℃至约400℃的范围内。即使在这样的低熔点温度下，本发明人惊奇地发现负载下的挠曲温度（DTUL）的比例 短期耐热性，熔化温度可能保持较高。 特定的DTUL值可以在约200℃至约300℃的范围内。形成具有上述性质的聚合物组合物的能力可以至少部分地通过使用芳族酰胺低聚物来实现。
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公开(公告)号：US20130052447A1
公开(公告)日：2013-02-28
申请号：US13594920
申请日：2012-08-27
申请人： Joseph J. Grenci , Kamlesh P. Nair
发明人： Joseph J. Grenci , Kamlesh P. Nair
CPC分类号： C09K19/22 , B29C48/022 , B29C48/05 , B29C48/395 , B29C48/625 , C08J3/18 , C08J3/203 , C08J2300/12 , C08J2367/03 , C08K5/20 , C08K7/14 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/3809 , C09K2019/0481 , C08L67/03
摘要： A polymer composition that contains a thermotropic liquid crystalline polymer, fibrous filler (e.g., glass fibers), and a flow aid is provided. The flow aid is in the form of an aromatic amide oligomer which, due to its unique nature and properties, has the ability to dramatically reduce melt viscosity with only a minimal degree of blending with the polymer. More particularly, the fibrous filler is supplied to an extruder in conjunction with the polymer and/or at a location downstream thereof so that the polymer is still in a solid or solid-like state when it initially contacts the filler. In this manner, the fibrous filler and polymer are allowed to mix together while the composition still has a relatively high melt viscosity, which helps to uniformly disperse the fibrous filler within the polymer matrix. After a certain period of time, the aromatic amide oligomer is then supplied to the extruder at a location downstream from the fibrous filler to reduce the melt viscosity of the composition.
摘要翻译： 提供含有热致液晶聚合物，纤维填料（例如玻璃纤维）和流动助剂的聚合物组合物。 流动助剂是芳族酰胺低聚物的形式，由于其独特的性质和性质，其具有以仅与聚合物最小程度的共混显着降低熔融粘度的能力。 更具体地说，将纤维填料与聚合物和/或其下游位置一起供应到挤出机，使得当聚合物最初接触填料时仍然处于固体或固体状态。 以这种方式，使纤维填料和聚合物混合在一起，同时组合物仍然具有相对较高的熔体粘度，这有助于将纤维填料均匀地分散在聚合物基体内。 一段时间后，芳族酰胺低聚物然后在纤维填料下游的一个位置供给挤出机，以降低组合物的熔体粘度。
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公开(公告)号：US09057016B2
公开(公告)日：2015-06-16
申请号：US13594901
申请日：2012-08-27
申请人： Kamlesh P. Nair , Steven D. Gray
发明人： Kamlesh P. Nair , Steven D. Gray
IPC分类号： C08G63/02 , C09K19/36 , C08L77/00 , C09K19/22 , C09K19/30 , C09K19/32 , C09K19/34 , C09K19/48 , C08K5/20 , C09K19/04
CPC分类号： C09K19/22 , C08K5/20 , C09K19/3086 , C09K19/322 , C09K19/3444 , C09K19/48 , C09K2019/0481 , C08L67/03
摘要： A method for forming a high molecular weight liquid crystalline polymer is provided. The method include melt polymerizing two or more precursor monomers (e.g., acetylated or non-acetylated) in the presence of an aromatic amide oligomer. The present inventors have discovered that such an oligomer can lower the melt viscosity of the viscous polymer as it is formed. The ability to lower melt viscosity in situ during melt polymerization enables the formation of high molecular weight polymers that display low melt viscosity and can still be removed from the reactor vessel without solidifying therein. This not only improves the ease of processing, but also allows molecular weights to be reached that are even higher than conventionally practical.
摘要翻译： 提供了形成高分子量液晶聚合物的方法。 该方法包括在芳族酰胺低聚物存在下熔融聚合两种或更多种前体单体（例如乙酰化或非乙酰化的）。 本发明人已经发现，这种低聚物可以降低粘稠聚合物形成时的熔体粘度。 在熔融聚合期间降低熔融粘度的能力使得能够形成显示低熔体粘度的高分子量聚合物，并且仍然可以从反应器容器中除去而不在其中固化。 这不仅提高了加工的容易性，而且还使达到甚至高于传统实际的分子量。
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