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公开(公告)号：US06583209B2
公开(公告)日：2003-06-24
申请号：US09947836
申请日：2001-09-06
IPC分类号： C08L334
CPC分类号： C08L23/10 , C08K9/04 , C08L23/12 , C08L23/16 , C08L51/06 , C08L2205/08 , C08L2666/04
摘要： Propylene polymer composites containing modified clays and compatibilizing agents, more specifically hydrogenated tallow modified montmorillonite and maleic anhydride grafted propylene polymers, are provided. Concentrates or masterbatches used to prepare the composites are also described. The improved composites of the invention exhibit increased melt strength compared to the base resin and to composites similarly formulated using other types of modified clays. Moreover, the improved results are achievable at lower compatibilizer levels and lower ratios of compatibilizer to clay than has heretofore been considered practical.
摘要翻译： 提供了含有改性粘土和增容剂的丙烯聚合物复合材料，更具体地说是氢化牛脂改性蒙脱石和马来酸酐接枝丙烯聚合物。 还描述了用于制备复合材料的浓缩物或母料。 与基础树脂相比，本发明的改进的复合材料显示增加的熔体强度，并且与使用其它类型的改性粘土类似地配制的复合材料显示出增加的熔体强度。 此外，改善的结果可以在相对于较低的增容剂水平和相对于粘土的比例比以前被认为是实用的情况下是可实现的。
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2.发明授权Preparation of multimodal, high density, ethylene homopolymer barrier resins and films 有权制备多峰，高密度，乙烯均聚物阻隔树脂和薄膜公开(公告)号：US07951883B1
公开(公告)日：2011-05-31
申请号：US12592900
申请日：2009-12-04
IPC分类号： C08F4/44
CPC分类号： C08J5/18 , B32B27/08 , B32B27/32 , C08F110/02 , C08J2323/06 , C08F4/6465 , C08F2500/05 , C08F2500/07 , C08F2500/12 , C08F2500/26
摘要： Disclosed is a multimodal, high density, homopolyethylene barrier resin. The resin is preferably made by a multistage process. The process comprises a first stage in which ethylene is homopolymerized in the presence of a Ziegler-Natta catalyst, organoaluminum cocatalyst, alkoxysilane modifier, and hydrogen. The reaction mixture from the first stage is devolatilized to remove all or substantially all of the hydrogen. The polymerization continues in a second stage wherein ethylene is added to the devolatilized reaction mixture to produce the barrier resin. The barrier resin provides films with improved barrier properties.
摘要翻译： 公开了一种多峰，高密度均聚乙烯阻挡树脂。 树脂优选通过多级方法制成。 该方法包括在齐格勒 - 纳塔催化剂，有机铝助催化剂，烷氧基硅烷改性剂和氢气存在下乙烯均聚的第一阶段。 来自第一阶段的反应混合物脱挥发分以除去所有或基本上全部的氢。 聚合在第二阶段继续，其中将乙烯加入到脱挥发分的反应混合物中以产生阻挡树脂。 阻隔树脂提供具有改进的阻挡性能的膜。
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3.发明申请PREPARATION OF MULTIMODAL, HIGH DENSITY, ETHYLENE HOMOPOLYMER BARRIER RESINS AND FILMS 有权多模，高密度，乙烯共聚物阻挡树脂和膜的制备公开(公告)号：US20110136997A1
公开(公告)日：2011-06-09
申请号：US12592900
申请日：2009-12-04
IPC分类号： C08F110/02
CPC分类号： C08J5/18 , B32B27/08 , B32B27/32 , C08F110/02 , C08J2323/06 , C08F4/6465 , C08F2500/05 , C08F2500/07 , C08F2500/12 , C08F2500/26
摘要： Disclosed is a multimodal, high density, homopolyethylene barrier resin. The resin is preferably made by a multistage process. The process comprises a first stage in which ethylene is homopolymerized in the presence of a Ziegler-Natta catalyst, organoaluminum cocatalyst, alkoxysilane modifier, and hydrogen. The reaction mixture from the first stage is devolatilized to remove all or substantially all of the hydrogen. The polymerization continues in a second stage wherein ethylene is added to the devolatilized reaction mixture to produce the barrier resin. The barrier resin provides films with improved barrier properties.
摘要翻译： 公开了一种多峰，高密度均聚乙烯阻挡树脂。 树脂优选通过多级方法制成。 该方法包括在齐格勒 - 纳塔催化剂，有机铝助催化剂，烷氧基硅烷改性剂和氢气存在下乙烯均聚的第一阶段。 来自第一阶段的反应混合物脱挥发分以除去所有或基本上全部的氢。 聚合在第二阶段继续，其中将乙烯加入到脱挥发分的反应混合物中以产生阻挡树脂。 阻隔树脂提供具有改进的阻挡性能的膜。
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4.发明授权Process for increasing the melt strength of ethylene-vinyl carboxylate copolymers 失效提高乙烯 - 乙烯基羧酸酯共聚物熔体强度的方法公开(公告)号：US07037970B2
公开(公告)日：2006-05-02
申请号：US10853917
申请日：2004-05-26
CPC分类号： C08K9/04 , C08L23/04 , C08L23/0869 , C08L2666/06
摘要： Ethylene polymer composites, concentrates and a process utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organically modified clay and may also contain a compatibilizng agent, depending on the base resin used.
摘要翻译： 提供了乙烯聚合物复合材料，浓缩物和用于其制备的方法。 本发明的复合材料与基础树脂相比具有提高的熔体强度和其它改善的物理特性。 复合材料含有有机改性的粘土，并且还可以含有相容剂，这取决于所使用的基础树脂。
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公开(公告)号：US06844389B2
公开(公告)日：2005-01-18
申请号：US10027742
申请日：2001-12-20
CPC分类号： C08K9/04 , C08L23/04 , C08L23/0869 , C08L2666/06
摘要： Ethylene polymer composites and concentrates utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organically modified clay and may also contain a compatibilizng agent, depending on the base resin used.
摘要翻译： 提供了用于制备的乙烯聚合物复合材料和浓缩物。 本发明的复合材料与基础树脂相比具有提高的熔体强度和其它改善的物理特性。 复合材料含有有机改性的粘土，并且还可以含有相容剂，这取决于所使用的基础树脂。
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公开(公告)号：US07230054B2
公开(公告)日：2007-06-12
申请号：US10880263
申请日：2004-06-29
IPC分类号： C08L23/00
CPC分类号： C08F210/16 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2666/06 , C08F210/08 , C08F2500/12 , C08F2500/03 , C08F2500/13
摘要： Resins comprising a relatively high-density, low-molecular-weight polyethylene component and a relatively low-density, high-molecular-weight ethylene copolymer component and methods of making the resins are disclosed. The rheological polydispersity of the high-density component exceeds that of either the resin or the low-density component. The resins are valuable for making films, sheets, coatings, pipes, fibers, and molded articles having a favorable balance of good stiffness and excellent environmental stress crack resistance.
摘要翻译： 公开了包含相对高密度，低分子量聚乙烯组分和相对低密度，高分子量乙烯共聚物组分的树脂和制备树脂的方法。 高密度组分的流变多分散性超过树脂或低密度组分的多分散性。 这些树脂对于制造具有良好的刚度和优异的耐环境应力开裂性的良好平衡的膜，片，涂料，管，纤维和模制品是有价值的。
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公开(公告)号：US20090304966A1
公开(公告)日：2009-12-10
申请号：US12156844
申请日：2008-06-05
申请人： Sameer D. Mehta , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
发明人： Sameer D. Mehta , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
CPC分类号： C08F210/16 , C08F110/02 , Y10T428/139 , C08F2/001 , C08F2500/02 , C08F2500/07 , C08F2500/05 , C08F2500/12 , C08F2500/09 , C08F210/08 , C08F2500/01 , C08F2500/08 , C08F210/14
摘要： Bimodal polyethylene resins having reduced long-chain branching and suitable for use in pipe resin applications as a result of their improved SCG and RCP resistance are provided. The improved resins of the invention are produced in a two-reactor cascade slurry polymerization process using a Ziegler-Natta catalyst system and wherein an alkoxysilane modifier is present in both reactors.
摘要翻译： 提供了由于其改进的SCG和RCP电阻而具有减少的长链支化并适合用于管道树脂应用的双峰聚乙烯树脂。 本发明的改进的树脂在使用齐格勒 - 纳塔催化剂体系的双反应器级联淤浆聚合方法中制备，并且其中烷氧基硅烷改性剂存在于两个反应器中。
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8.发明申请Polyethylene having faster crystallization rate and improved environmental stress cracking resistance 有权聚乙烯具有更快的结晶速率和改善的耐环境应力开裂性公开(公告)号：US20100105839A1
公开(公告)日：2010-04-29
申请号：US12288826
申请日：2008-10-23
申请人： Sameer D. Mehta
发明人： Sameer D. Mehta
IPC分类号： C08F8/00
CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/03 , C08L2205/24 , C08L2666/02
摘要： Disclosed is a polyethylene composition having faster crystallization rate and improved environmental stress cracking resistance. The polyethylene composition comprises a multimodal polyethylene and a nucleating agent. The multimodal polyethylene comprises from 25 to 50 wt % of a low molecular weight ethylene homopolymer component, from 25 to 50 wt % of a medium molecular weight ethylene copolymer component and from 25 to 50 wt % of a high molecular weight ethylene copolymer component. The polyethylene composition has an environmental stress cracking resistance (ASTM D1693, Condition B in 100% Igepal) greater than or equal to 40 days and a crystallization half time less than or equal to 70% of the crystallization half time of the multimodal polyethylene without nucleating agent.
摘要翻译： 公开了具有更快的结晶速率和改进的耐环境应力开裂性的聚乙烯组合物。 聚乙烯组合物包含多峰聚乙烯和成核剂。 多峰聚乙烯包含25至50重量％的低分子量乙烯均聚物组分，25至50重量％的中分子量乙烯共聚物组分和25至50重量％的高分子量乙烯共聚物组分。 聚乙烯组合物具有大于或等于40天的环境应力开裂性（ASTM D1693，条件B在100％Igepal中），并且结晶半衰期小于或等于多晶聚乙烯的无结晶半时间的70％ 代理商
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9.发明授权Polyethylene having faster crystallization rate and improved environmental stress cracking resistance 有权聚乙烯具有更快的结晶速率和改善的耐环境应力开裂性公开(公告)号：US09187627B2
公开(公告)日：2015-11-17
申请号：US12288826
申请日：2008-10-23
申请人： Sameer D. Mehta
发明人： Sameer D. Mehta
CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/03 , C08L2205/24 , C08L2666/02
摘要： Disclosed is a polyethylene composition having faster crystallization rate and improved environmental stress cracking resistance. The polyethylene composition comprises a multimodal polyethylene and a nucleating agent. The multimodal polyethylene comprises from 25 to 50 wt % of a low molecular weight ethylene homopolymer component, from 25 to 50 wt % of a medium molecular weight ethylene copolymer component and from 25 to 50 wt % of a high molecular weight ethylene copolymer component. The polyethylene composition has an environmental stress cracking resistance (ASTM D1693, Condition B in 100% Igepal) greater than or equal to 40 days and a crystallization half time less than or equal to 70% of the crystallization half time of the multimodal polyethylene without nucleating agent.
摘要翻译： 公开了具有更快的结晶速率和改进的耐环境应力开裂性的聚乙烯组合物。 聚乙烯组合物包含多峰聚乙烯和成核剂。 多峰聚乙烯包含25至50重量％的低分子量乙烯均聚物组分，25至50重量％的中分子量乙烯共聚物组分和25至50重量％的高分子量乙烯共聚物组分。 聚乙烯组合物具有大于或等于40天的环境应力开裂性（ASTM D1693，条件B在100％Igepal中），并且结晶半衰期小于或等于多晶聚乙烯的无结晶半时间的70％ 代理商
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公开(公告)号：US08546504B2
公开(公告)日：2013-10-01
申请号：US13024113
申请日：2011-02-09
申请人： Chun Lee , Dinshong Dong , Charles S. Holland , James R. Beren , Anthony J. De Nicola, Jr. , Sameer D. Mehta , Vu A. Dang , Richard J. Fezza
发明人： Chun Lee , Dinshong Dong , Charles S. Holland , James R. Beren , Anthony J. De Nicola, Jr. , Sameer D. Mehta , Vu A. Dang , Richard J. Fezza
CPC分类号： C08L23/10 , C08K5/005 , C08K5/098 , C08K5/34926 , C08L2205/02 , C08L2207/02
摘要： The present invention relates to a process comprising extruding a blend of an first propylene polymer comprising a non-phenolic stabilizer and a non-irradiated second propylene polymer, wherein the irradiation of the first propylene polymer was conducted in a reduced oxygen environment, and the irradiated first propylene polymer and the non-irradiated second propylene polymer were blended at a temperature below the melting point of the first and second propylene polymers.
摘要翻译： 本发明涉及包括挤出包含非酚类稳定剂的第一丙烯聚合物和未经辐照的第二丙烯聚合物的共混物的方法，其中第一丙烯聚合物的照射在还原氧环境中进行， 第一丙烯聚合物和未经照射的第二丙烯聚合物在低于第一和第二丙烯聚合物的熔点的温度下共混。
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