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31. 发明授权

US07476710B2 Heterogeneous polymer blends and molded articles therefrom 有权
标题翻译：非均相聚合物共混物及其模塑制品
公开(公告)号：US07476710B2
公开(公告)日：2009-01-13
申请号：US11298145
申请日：2005-12-09
申请人： Aspy K. Mehta , Sudhin Datta , Wen Li , Srivatsan S. Iyer
发明人： Aspy K. Mehta , Sudhin Datta , Wen Li , Srivatsan S. Iyer
IPC分类号： C08L23/00 , C08L23/04
CPC分类号： C08L23/10 , C08L23/12 , C08L23/14 , C08L2023/42 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2314/06 , C08L2666/06 , C08L2666/02
摘要： This invention relates to a molded article comprising a heterogeneous blend that includes: 1) from 60 to 99 weight percent of one or more semi-crystalline propylene homopolymers or copolymers having a melting point between 100 and 170 ° C. and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous propylene /C2 and/or C4 to C10 α-olefin copolymers each having a particular heat of fusion, a melt flow rate, intermolecular compositional distribution as determined by thermal fractionation in hexane, Mw/Mn, and propylene triad tacticity such that the molded part formed from the resulting blend has improved notched impact strength, flexibility, elongation, and resistance to stress whitening at a thickness of from 250 μpm to 10 mm.
摘要翻译：本发明涉及包含非均相共混物的模制品，其包括：1）60至99重量％的一种或多种半结晶丙烯均聚物或共聚物，其熔点为100-170℃，熔体流动速率为 200 dg / min以下; 和2）1至40重量％的一种或多种半无定形丙烯/ C 2和/或C 4至C 10α-烯烃共聚物，其各自具有特定的熔化热，熔体流动速率，通过热分馏确定的分子间组成分布在己烷中，Mw / Mn和丙烯三单元线形立构规整度，使得由所得共混物形成的模塑部件具有改善的缺口冲击强度，柔韧性，伸长率和耐应力增白的厚度为250μm至10mm。

32. 发明授权

US06174930B1 Foamable polypropylene polymer 失效
标题翻译：可发泡聚丙烯聚合物
公开(公告)号：US06174930B1
公开(公告)日：2001-01-16
申请号：US09433989
申请日：1999-11-04
申请人： Pawan K. Agarwal , Aspy K. Mehta
发明人： Pawan K. Agarwal , Aspy K. Mehta
IPC分类号： C08J900
CPC分类号： C08J9/122 , C08F4/65912 , C08F4/65927 , C08F10/00 , C08F110/06 , C08J2323/12 , C08F4/65916 , C08F2/001 , C08F2500/12 , C08F2500/20 , C08F2500/15 , C08F2500/03
摘要： This invention relates generally to foamable polypropylene polymer, and more particularly a foamable isotactic polypropylene homopolymer obtained from metallocene catalysis and to their methods of production and articles formed therefrom. The foamable polypropylene polymer has molecular weight distributions and densities that fall within broad ranges. The foamable polypropylene polymer may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages.
摘要翻译：本发明一般涉及可发泡聚丙烯聚合物，更具体地说是由茂金属催化得到的可发泡全同立构聚丙烯均聚物及其制备方法和由其形成的制品。可发泡聚丙烯聚合物具有分布范围内的分子量分布和密度。可发泡聚丙烯聚合物可以在至少两个阶段中使用相同的茂金属组分的多阶段聚合方法中制备。

33. 发明授权

US5322728A Fibers of polyolefin polymers 失效
标题翻译：聚烯烃聚合物纤维
公开(公告)号：US5322728A
公开(公告)日：1994-06-21
申请号：US981029
申请日：1992-11-24
申请人： Christopher R. Davey , Thomas C. Erderly , Aspy K. Mehta , Charles S. Speed
发明人： Christopher R. Davey , Thomas C. Erderly , Aspy K. Mehta , Charles S. Speed
IPC分类号： C08F210/16 , C08L23/08 , C08L23/16 , D01F6/30 , D04H3/14 , D04H3/16 , C08F210/06
CPC分类号： D01F6/30 , C08L23/0815 , C08L23/16 , Y10T428/2913 , Y10T428/2915 , Y10T442/681
摘要： Fiber with unique elastic properties comprising copolymer, of ethylene and comonomer, having density in the range of about 0.86 to about 0.93 g/cm.sup.3, MWD in the range of about 2 to about 3.5, melt index in the range of about 4 to about 1000, and SDBI less than about 25.degree. C.
摘要翻译：纤维具有独特的弹性，包括乙烯和共聚单体的共聚物，密度在约0.86至约0.93g / cm 3范围内，MWD在约2至约3.5范围内，熔体指数在约4至约1000范围内，SDBI小于约25℃

34. 发明申请

US20120329351A1 Elastic Nonwoven Materials Comprising Propylene-Based and Ethylene-Based Polymers 审中-公开
标题翻译：弹性非织造材料，包括丙烯基和乙烯基聚合物
公开(公告)号：US20120329351A1
公开(公告)日：2012-12-27
申请号：US13486643
申请日：2012-06-01
申请人： Aspy K. Mehta , Bin Zhao , Galen C. Richeson , Charles R. Harris , Gregory E. Keys
发明人： Aspy K. Mehta , Bin Zhao , Galen C. Richeson , Charles R. Harris , Gregory E. Keys
IPC分类号： C08L23/10 , C08L23/20 , D04H13/00 , C08L23/04
CPC分类号： D04H1/00 , C08F210/06 , C08F210/16 , D01F6/30 , D01F6/46 , D04H3/00 , Y10T442/601 , C08F2500/11 , C08F2500/12 , C08F2500/15 , C08F2500/18 , C08F2500/20 , C08F2500/23
摘要： The present invention relates to elastic nonwoven materials comprising an elastic layer formed from a polymer blend comprising a propylene-based polymer and a minor amount of an ethylene-based polymer. The propylene-based polymer may comprise from about 75 to about 95 wt % propylene and from about 5 to about 25 wt % ethylene and/or a C4-C12 α-olefin, and may have a triad tacticity greater than about 90% and a heat of fusion less than about 75 J/g. The ethylene-based polymer may comprise from about 65 to about 100 wt % ethylene and from 0 to about 35 wt % of one or more C3-C12 α-olefins.
摘要翻译：本发明涉及弹性非织造材料，其包括由包含丙烯类聚合物和少量基于乙烯的聚合物的聚合物共混物形成的弹性层。基于丙烯的聚合物可以包含约75至约95重量％的丙烯和约5至约25重量％的乙烯和/或C 4 -C 12α-烯烃，并且可以具有大于约90％的三单元组立构规律度和熔化热小于约75J / g。基于乙烯的聚合物可以包含约65至约100重量％的乙烯和0至约35重量％的一种或多种C 3 -C 12α-烯烃。

35. 发明授权

US07919561B2 Process of producing thermoplastic polymer blends 有权
标题翻译：生产热塑性聚合物共混物的方法
公开(公告)号：US07919561B2
公开(公告)日：2011-04-05
申请号：US11446794
申请日：2006-06-05
申请人： Terry J. Burkhardt , Aspy K. Mehta
发明人： Terry J. Burkhardt , Aspy K. Mehta
IPC分类号： C08L23/00 , C08L23/04 , C08F8/00 , C08F210/00
CPC分类号： C08L23/12 , C08L23/10 , C08L23/14 , C08L23/142 , C08L2205/02 , C08L2666/06
摘要： A process is described for producing a polymer blend comprising (a) a first polymer component comprising a crystalline propylene polymer and (b) a second polymer component comprising a copolymer of propylene with at least one comonomer, wherein the copolymer comprises between about 7 wt % and about 28 wt % of comonomer and the copolymer has a heat of fusion of 0.5 to 70 J/g and an mm triad tacticity of 75% or greater. The process comprises polymerizing propylene under first polymerization conditions in a polymerization reaction zone to produce a first effluent comprising a crystalline propylene polymer containing no more than 10% by weight of other monomers, the first polymerization conditions comprising a first reaction temperature between about 50° C. and about 100° C. Propylene is then copolymerized with at least one comonomer under second polymerization conditions in the presence of a metallocene catalyst and at least part of said first effluent in a slurry polymerization reaction zone to produce the second polymer component as a blend with the first polymer component, the second polymerization conditions comprising a second reaction temperature at least 7° C. less than the first reaction temperature.
摘要翻译：描述了一种制备聚合物共混物的方法，其包含（a）包含结晶丙烯聚合物的第一聚合物组分和（b）包含丙烯与至少一种共聚单体的共聚物的第二聚合物组分，其中所述共聚物包含约7重量％和约28重量％的共聚单体，共聚物的熔融热为0.5〜70J / g，mm三元组立构规整度为75％以上。该方法包括在聚合反应区中在第一聚合条件下聚合丙烯以产生包含不超过10重量％的其它单体的结晶丙烯聚合物的第一流出物，第一聚合条件包括约50℃的第一反应温度然后约100℃。然后，丙烯在第二聚合条件下，在茂金属催化剂和至少部分所述第一流出物在淤浆聚合反应区中的存在下，与至少一种共聚单体共聚以产生作为共混物的第二聚合物组分与第一聚合物组分相比，第二聚合条件包括比第一反应温度低至少7℃的第二反应温度。

36. 发明申请

US20100113718A1 Super-Solution Homogeneous Propylene Polymerization and Polypropylenes Made Therefrom 有权
标题翻译：超溶液均聚丙烯聚合和聚丙烯制成
公开(公告)号：US20100113718A1
公开(公告)日：2010-05-06
申请号：US12264753
申请日：2008-11-04
申请人： Aspy K. Mehta , Manika Varma-Nair , Gabor Kiss , Robert P. Reynolds , John W. Chu , Steven P. Rucker
发明人： Aspy K. Mehta , Manika Varma-Nair , Gabor Kiss , Robert P. Reynolds , John W. Chu , Steven P. Rucker
IPC分类号： C08F4/76
CPC分类号： C08F110/06 , C08F2/06 , C08F2500/15 , C08F2500/20 , C08F2500/09 , C08F2500/03
摘要： This invention relates to processes for producing an isotactic propylene homopolymer having more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations) per 10,000 propylene units; a weight-averaged molecular weight of 35000 g/mol or more; a peak melting temperature of greater than 149° C.; an mmmm pentad fraction of 0.85 or more; a heat of fusion of 80 J/g or more; and a peak melting temperature minus peak crystallization temperature (Tmp−Tcp) of less than or equal to (0.907 times Tmp) minus 99.64 (Tmp−Tcp
摘要翻译：本发明涉及用于生产具有超过15个且小于100个区域缺陷（每1万个丙烯单元的2,1-赤型和2,1-苏式插入和3,1-异构化的总和）的全同立构丙烯均聚物的方法; 重均分子量为35000g / mol以上; 峰值熔融温度大于149℃。 0.85mm以上的mmmm五元组分; 融合热量为80J / g以上; 并且峰值熔融温度减去小于或等于（0.907倍Tmp）至99.64（Tmp-Tcp <（0.907×Tmp）-99.64）的峰值结晶温度（Tmp-Tcp），如在℃下测量的均聚物具有0重量％的成核剂。

37. 发明授权

US07619038B2 Homogeneous polymer blend and articles therefrom 失效
标题翻译：均相聚合物共混物及其制品
公开(公告)号：US07619038B2
公开(公告)日：2009-11-17
申请号：US11299022
申请日：2005-12-09
申请人： Aspy K. Mehta , Chia Cheng , Sudhin Datta , Wen Li , Chon Y. Lin , Srivatsan S. Iyer
发明人： Aspy K. Mehta , Chia Cheng , Sudhin Datta , Wen Li , Chon Y. Lin , Srivatsan S. Iyer
IPC分类号： C08L23/10 , C08L23/14
CPC分类号： C08L23/10 , C08L23/142 , C08L2205/02 , C08L2205/025 , C08L2314/06 , C08L2666/06
摘要： This invention relates to homogeneous blends of: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 5 to 12 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) 10 to 50 percent crystallinity or less; b) a melt flow rate of 200 dg/min or less; c) a DSC melting point (second melt Tm) of 130° C. or less; d) an intermolecular composition distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt % comonomer content with a difference of no greater than 20 wt % relative to the average wt % comonomer content of the copolymer; e) an Mw/Mn of 1.5 to 4, f) a triad tacticity of three propylene units, as measured by 13C NMR, of 75% or greater, for use in films, fibers, non-wovens, molded articles and the like.
摘要翻译：本发明涉及以下均质共混物：1）60至99重量％的一种或多种半结晶聚合物（基于半结晶和半无定形聚合物的重量），每种半结晶聚合物包含丙烯和 0至5重量％的α-烯烃共聚单体（基于聚合物的重量），所述半结晶聚合物各自具有100-170℃的熔点和200dg / min以下的熔体流动速率; 和2）1至40重量％的一种或多种半无定形聚合物（基于半结晶和半无定形聚合物的重量），每种包含丙烯的半无定形聚合物和5至12重量％的一种或更多的C 2和C 4至C 10α-烯烃共聚单体，所述半无定形聚合物各自具有：a）10至50％的结晶度或更低; b）200dg / min或更低的熔体流动速率; c）130℃或更低的DSC熔点（第二熔体Tm）; d）通过在己烷中的热分馏测定的分子间组成分布，使得85重量％或更多的聚合物作为一个或两个相邻的可溶性级分分离，在紧邻的前面或后续级分中余量的聚合物分离; 并且其中这些级分中的每一种都具有相对于共聚物的平均重量％共聚单体含量的不大于20重量％的重量％共聚单体含量; e）Mw / Mn为1.5至4，f）通过13 C NMR测量的三个丙烯单元的三单元组立构规整度为75％或更大，用于膜，纤维，无纺布，模制品等。

38. 发明授权

US07319077B2 Polymer blends and nonwoven articles therefrom 有权
公开(公告)号：US07319077B2
公开(公告)日：2008-01-15
申请号：US11299167
申请日：2005-12-09
申请人： Aspy K. Mehta , Chia Yung Cheng , Sudhin Datta , Wen Li , Chon Y. Lin , Srivatsan S. Iyer
发明人： Aspy K. Mehta , Chia Yung Cheng , Sudhin Datta , Wen Li , Chon Y. Lin , Srivatsan S. Iyer
IPC分类号： D04H1/00 , D04H3/00 , D04H5/00 , B32B25/02
CPC分类号： C08L23/10 , C08L23/142 , C08L2205/02 , C08L2314/06 , D01F1/10 , D01F6/46 , D04H1/4291 , D04H1/4382 , D04H1/4391 , D04H1/56 , D04H3/16 , Y10T428/249938 , Y10T442/60 , Y10T442/607 , Y10T442/627 , Y10T442/633 , Y10T442/636 , Y10T442/637 , C08L2666/06
摘要： This invention relates to a nonwoven article comprising a heterogeneous blend comprising: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170° C. and a melt flow rate of 2000 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 10 to 25 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having: a) heat of fusion of 4 to 70 J/g; b) a Melt Flow Rate of 0.1 to 2000 dg/min; c) an intermolecular compositional distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt % comonomer content with a difference of no greater than 20 wt % relative to the average wt % comonomer content of the copolymer; and d) an Mw/Mn of 1.5 to 4, and e) a propylene triad tacticity, as measured by 13C NMR, of 75% or greater; where the blend of the semi-crystalline and semi-amorphous polymers comprises less than 5 weight % filler, based upon the weight of the polymers and the filler, and the blend has: i) an MFR greater than 10 dg/min; and ii) a Permanent Set of greater than 65% (as measured on a 125 mil thick molded part); and where the nonwoven article has a Hand of 40 g or less at a fabric basis weight of 35 gsm.

39. 发明授权

US06784269B2 Polypropylene compositions methods of making the same 失效
标题翻译：聚丙烯组合物的制造方法
公开(公告)号：US06784269B2
公开(公告)日：2004-08-31
申请号：US10177073
申请日：2002-06-20
申请人： Chon Y. Lin , Michael C. Chen , Aspy K. Mehta , Rajan K. Chudgar
发明人： Chon Y. Lin , Michael C. Chen , Aspy K. Mehta , Rajan K. Chudgar
IPC分类号： C08F21006
CPC分类号： C08F297/083 , C08F4/65912 , C08F4/65927 , C08F10/00 , C08F110/06 , C08F297/08 , C08J9/122 , C08J2323/12 , C08L23/12 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2314/06 , Y10S526/943 , C08F2/001 , C08L2666/06 , C08F2500/03 , C08F2500/12 , C08F2500/15 , C08F2500/04 , C08F4/65916 , C08L2666/04 , C08F2500/20 , C08F2500/01 , C08F2500/26
摘要： This invention relates to propylene homopolymer compositions obtained from metallocene catalysis wherein the polymer has a molecular weight distribution (Mw/Mn) in the range of from 4.0 to 20.0. The propylene homopolymer composition may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages. The composition may comprise isotactic homopolymer in one embodiment, and have a hexane extractables of less than 2 wt % in one embodiment. The composition is useful in making films.
摘要翻译：本发明涉及由茂金属催化得到的丙烯均聚物组合物，其中该聚合物的分子量分布（Mw / Mn）为4.0-20.0。丙烯均聚物组合物可以在至少两个阶段中使用相同的茂金属组分的多阶段聚合方法中制备。在一个实施方案中，组合物可以包含全同立构均聚物，并且在一个实施方案中具有小于2重量％的己烷可提取物。该组合物可用于制备薄膜。

40. 发明授权

US06583227B2 Propylene polymers for films 有权
标题翻译：丙烯聚合物薄膜
公开(公告)号：US06583227B2
公开(公告)日：2003-06-24
申请号：US09800238
申请日：2001-03-06
申请人： Aspy K. Mehta , Michael C. Chen , James J. McAlpin , Anthony N. Speca , Kelly Tormaschy , Chon Y. Lin
发明人： Aspy K. Mehta , Michael C. Chen , James J. McAlpin , Anthony N. Speca , Kelly Tormaschy , Chon Y. Lin
IPC分类号： C08L2314
CPC分类号： C08F10/00 , C08F10/06 , C08F210/06 , C08F210/16 , C08F297/08 , C08J5/18 , C08J2323/10 , C08J2323/12 , C08L23/12 , C08L23/142 , C08L2205/02 , C08L2308/00 , C08L2314/06 , Y10S526/943 , C08F4/65904 , C08F2/001 , C08L2666/04 , C08F2500/15 , C08F2500/05 , C08F2500/03 , C08F2500/01 , C08F2500/26 , C08F2500/12
摘要： This invention relates generally to crystalline propylene polymers, to methods for their production and to methods for their use in film applications. Specifically, this invention relates to crystalline propylene polymers comprising both propylene homopolymer and propylene copolymer. The compositions are prepared using metallocene catalyst systems comprising at least two metallocenes in a polymerization process that involves the sequential or parallel polymerization of propylene homopolymer and copolymer using propylene with a small amount of comonomer, preferably ethylene. The polymerization is catalyzed by a dual metallocene catalyst system. The resulting polymers have a broad, bimodal molecular weight distribution. The resulting polymers are excellent for use in the production of biaxially oriented films or non-oriented films. Films prepared with these propylene polymers have a significantly broader processability range and can be evenly stretched at lower temperature compared to films prepared from traditional propylene polymer.
摘要翻译：本发明一般涉及结晶丙烯聚合物，其制备方法及其用于膜应用的方法。具体地说，本发明涉及包含丙烯均聚物和丙烯共聚物的结晶丙烯聚合物。在聚合过程中使用包含至少两种金属茂的茂金属催化剂体系制备组合物，其涉及使用丙烯与少量共聚单体，优选乙烯的丙烯均聚物和共聚物的顺序或平行聚合。聚合由双茂金属催化剂体系催化。所得聚合物具有宽的双峰分子量分布。所得聚合物非常适用于制备双轴取向膜或非取向膜。用这些丙烯聚合物制备的膜具有显着更宽的加工性能范围，与传统丙烯聚合物制备的膜相比，可以在较低的温度下均匀地拉伸。

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