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1. 发明申请

US20140194845A1 Polymer Compositions and Nonwoven Compositions Prepared Therefrom 有权
标题翻译：聚合物组合物和无纺布组合物
公开(公告)号：US20140194845A1
公开(公告)日：2014-07-10
申请号：US14202869
申请日：2014-03-10
申请人： ExxonMobil Chemical Patents Inc.
发明人： Galen C. Richeson , Rainer Kolb , Jean-Roch H. Schauder , Thomas T. Sun
IPC分类号： C08L23/14 , D04H3/007 , A61L15/26 , D04H3/16
CPC分类号： C08L23/14 , A61L15/26 , C08F4/65908 , C08F4/65927 , C08F210/06 , C08L23/10 , C08L23/142 , C08L2205/025 , C08L2308/00 , D04H3/007 , D04H3/16 , Y10T442/601
摘要： Propylene-based polymer compositions are provided comprising propylene and from about 5 wt % to about 20 wt % of one or more C2 and/or C4-C12 α-olefins. The polymer compositions have a triad tacticity greater than about 90%, a heat of fusion less than about 75 J/g, and a melt flow rate (MFR) greater than or equal to about 25 g/10 min (230° C., 2.16 kg). Further, the polymer compositions are reactor grade compositions comprising a reactor blend of a first polymer and a second polymer, preferably where both of the first and second polymers are prepared using the same catalyst system. Meltspun nonwoven fabrics, such as meltblown or spunbond fabrics, comprising such polymer compositions are also provided, as well as processes for forming the nonwoven fabrics.
摘要翻译：提供了丙烯类聚合物组合物，其包括丙烯和约5重量％至约20重量％的一种或多种C 2和/或C 4 -C 12α-烯烃。聚合物组合物的三单元组立构规整度大于约90％，熔融热小于约75J / g，熔体流动速率（MFR）大于或等于约25g / 10min（230℃， 2.16公斤）。此外，聚合物组合物是包含第一聚合物和第二聚合物的反应器共混物的反应器级组合物，优选地，使用相同的催化剂体系制备第一和第二聚合物。还提供了包含这种聚合物组合物的熔喷非织造织物，例如熔喷或纺粘织物，以及用于形成无纺织物的方法。

2. 发明授权

US06809168B2 Articles formed from propylene diene copolymers 失效
公开(公告)号：US06809168B2
公开(公告)日：2004-10-26
申请号：US10406036
申请日：2003-04-02
申请人： Pawan Kumar Agarwal , Weiqing Weng , Aspy K. Mehta , Armenag H. Dekmezian , Main Chang , Rajan K. Chudgar , Olivier Jean Georjon , Chon-Yie Lin , Michael C. Chen , Galen C. Richeson , Palanisamy Arjunan
发明人： Pawan Kumar Agarwal , Weiqing Weng , Aspy K. Mehta , Armenag H. Dekmezian , Main Chang , Rajan K. Chudgar , Olivier Jean Georjon , Chon-Yie Lin , Michael C. Chen , Galen C. Richeson , Palanisamy Arjunan
IPC分类号： C08F23620
CPC分类号： C08F4/65927 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F110/06 , C08F210/06 , C08L23/14 , C08L23/145 , C08L23/16 , C08L2666/04 , C08F236/20 , C08F2500/12 , C08F2500/03 , C08F2500/04 , C08F2500/26
摘要： The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1° C. to 8° C. More desirably, one of the crystalline populations has a melting point in the range from 152° C. to 158° C. and another crystalline population has a melting point in the range from 142° C. to 148° C.

3. 发明授权

US10196506B2 Heat-activated fabrics made from blends containing propylene-based polymers 有权
公开(公告)号：US10196506B2
公开(公告)日：2019-02-05
申请号：US15527125
申请日：2015-07-20
申请人： ExxonMobil Chemical Patents Inc.
发明人： James N. Coffey , Galen C. Richeson , Jennifer J. Austin , Jurgen J. M. Schroeyers
IPC分类号： C08L23/12 , C08L23/14 , C08L23/16
摘要： The invention relates to an heat-activated fabric comprising a polymer blend of 70 to 100 wt % of a polymer blend component and 0 to 30 wt % of a propylene polymer, wherein the polymer blend component comprises a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin, wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend component has a MFR of greater than or equal to 20 g/10 min to less than 10,000 g/10 min; and wherein the propylene polymer has a MFR of greater than or equal to 20 g/10 min to less than 5,000 g/10 min.

4. 发明申请

US20160076171A1 Fibers and Nonwoven Materials Prepared Therefrom 审中-公开
标题翻译：纤维和非织造材料
公开(公告)号：US20160076171A1
公开(公告)日：2016-03-17
申请号：US14787201
申请日：2014-06-12
申请人： ExxonMobil Chemical Patents Inc.
发明人： Vincent B. Gallez , Galen C. Richeson , Prasadarao Meka , John W. M. Roberts
IPC分类号： D01F6/46 , D01F6/30 , B32B5/02 , D04H3/007
摘要： Described herein are fibers, nonwoven fabrics, and other nonwoven articles comprising a blend of at least one propylene-based elastomer and an impact copolymer. The impact copolymer is a reactor blend and comprises a propylene homopolymer component and a copolymer component, where the copolymer component comprises less than about 55 wt % ethylene-derived units, based on the weight of the copolymer component.
摘要翻译：本文描述的是包含至少一种基于丙烯的弹性体和抗冲共聚物的共混物的纤维，非织造织物和其它非织造制品。抗冲共聚物是反应器共混物并且包含丙烯均聚物组分和共聚物组分，其中基于共聚物组分的重量，共聚物组分包含小于约55重量％的来自乙烯的单元。

5. 发明授权

US09212432B2 Polypropylene spunbond fibers and methods for making same 有权
标题翻译：聚丙烯纺粘纤维及其制造方法
公开(公告)号：US09212432B2
公开(公告)日：2015-12-15
申请号：US12678626
申请日：2008-09-05
申请人： William M. Ferry , Galen C. Richeson
发明人： William M. Ferry , Galen C. Richeson
IPC分类号： D04H3/16 , D01D5/00 , D01D1/06 , D01D5/08 , D01F6/06
CPC分类号： D01D5/0023 , D01D1/065 , D01D5/08 , D01F6/06 , D04H3/16 , D10B2321/022 , Y10T442/681
摘要： Disclosed herein is a spunbond fiber of visbroken polypropylene having an Mw/Mn of from 3.5 to 7.0, an Mz/Mw of from greater than 2.0 and a melt flow rate (230/2.16) of from 50 to 100 dg/min. Also disclosed is a process for producing spunbond fibers comprising melt blending a polypropylene having a melt flow rate (230/2.16) of from 10 to 30 dg/min with a peroxide visbreaker such that the resulting melt flow rate of the visbroken polypropylene is from 50 to 100 dg/min; melt extruding the visbroken polypropylene through a die block such that filaments of the visbroken polypropylene being produced are exposed to a cabin pressure of from 4500 to 7000 Pa; and forming fibers of from less than 6.0 denier. Nonwoven fabrics and multiple-layer structures can be made from the fibers described herein that are useful for filtering and absorption related articles.
摘要翻译：本文公开了具有3.5至7.0的Mw / Mn，大于2.0的Mz / Mw和50至100dg / min的熔体流动速率（230 / 2.16）的脱模聚丙烯的纺粘纤维。还公开了一种生产纺粘纤维的方法，其包括将熔体流动速率（230 / 2.16）为10至30dg / min的聚丙烯与过氧化物破乳剂熔融共混，使得所得的抗坏裂聚丙烯的熔体流动速率为50 至100 dg / min; 通过模块将熔融挤出减枝裂纹的聚丙烯，使得生产的抗坏裂聚丙烯的长丝暴露于4500至7000Pa的客舱压力; 并形成小于6.0旦尼尔的纤维。无纺织物和多层结构可以由本文所述的纤维制成，其可用于过滤和吸收相关物品。

6. 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。

7. 发明授权

US09702060B2 Method of producing polypropylene spunbond fibers 有权
公开(公告)号：US09702060B2
公开(公告)日：2017-07-11
申请号：US14332750
申请日：2014-07-16
申请人： ExxonMobil Chemical Patents Inc.
发明人： William M. Ferry , Galen C. Richeson
IPC分类号： D01D5/08 , D01D5/00 , D01D1/06 , D01F6/06 , D04H3/16
CPC分类号： D01D5/0023 , D01D1/065 , D01D5/08 , D01F6/06 , D04H3/16 , D10B2321/022 , Y10T442/681
摘要： Disclosed is a process for producing spunbond fibers comprising melt blending a polypropylene having a melt flow rate (230/2.16) of from 10 to 30 dg/min with a peroxide visbreaker such that the resulting melt flow rate of the visbroken polypropylene is from 50 to 100 dg/min; melt extruding the visbroken polypropylene through a die block such that filaments of the visbroken polypropylene being produced are exposed to a cabin pressure of from 4500 to 7000 Pa; and forming fibers of from less than 6.0 denier. Nonwoven fabrics and multiple-layer structures can be made from the fibers described herein that are useful for filtering and absorption related articles.

8. 发明申请

US20140323003A1 Bicomponent Fibers and Methods for Making Them 审中-公开
标题翻译：双组分纤维及其制备方法
公开(公告)号：US20140323003A1
公开(公告)日：2014-10-30
申请号：US13879997
申请日：2011-10-18
申请人： ExxonMobil Chemical Patents Inc.
发明人： Galen C. Richeson , Alistair D. Westwood , Aspy K. Mehta
IPC分类号： D01F8/06 , D01F1/00
CPC分类号： D01F8/06 , D01D5/0985 , D01D5/40 , D01F1/00 , D01F6/46 , Y10T428/2929 , Y10T442/3154
摘要： The present invention relates to bicomponent polymer fibers, and to processes for forming those fibers. Bicomponent polymer fibers are described, having a core comprising a core polymer and a sheath comprising a sheath polymer, wherein the sheath polymer is a polyolefin having an Mw less than about 65,000 g/mol. The core polymer has an Mw at least about 20,000 g/mol greater than the Mw of the sheath polymer. Processes for forming bicomponent fibers are also described, comprising (i) forming a molten blend of a core polymer and a sheath polymer; (ii) extruding the molten polymer blend using an extrusion die having a length to diameter ratio greater than or equal to about 10 and under shear conditions sufficient to drive the sheath polymer to the die wall; and (iii) forming meltblown fibers having a core comprising the core polymer and a sheath comprising the sheath polymer.
摘要翻译：本发明涉及双组分聚合物纤维，以及用于形成这些纤维的方法。描述了双组分聚合物纤维，其具有包含芯聚合物的芯和包含鞘聚合物的鞘，其中所述鞘聚合物是Mw小于约65,000g / mol的聚烯烃。芯聚合物具有比鞘聚合物的Mw大至少约20,000g / mol的Mw。还描述了用于形成双组分纤维的方法，其包括（i）形成芯聚合物和鞘聚合物的熔融共混物; （ii）使用长度至直径比大于或等于约10的挤出模头挤出熔融聚合物共混物，并且在足以将护套聚合物驱动到模具壁的剪切条件下; 和（iii）形成具有芯的熔喷纤维，所述芯包含芯聚合物和包含鞘聚合物的护套。

9. 发明申请

US20120123374A1 Meltblown Nonwoven Compositions and Methods for Making Them 审中-公开
标题翻译：熔喷无纺组合物及其制造方法
公开(公告)号：US20120123374A1
公开(公告)日：2012-05-17
申请号：US13276035
申请日：2011-10-18
申请人： Galen C. Richeson , Alistair D. Westwood
发明人： Galen C. Richeson , Alistair D. Westwood
IPC分类号： A61L15/24 , D04H13/00
CPC分类号： D01F6/30 , C08F8/50 , C08F210/06 , C08F2800/10 , C08F2810/10 , C08L23/142 , C08L2203/12 , D04H1/4291 , D04H1/544 , D04H1/559 , D04H1/56 , D04H3/007 , Y10T442/601 , C08F210/16 , C08F2500/12 , C08F2500/15 , C08F2500/20 , C08L2023/42
摘要： Meltblown nonwoven compositions and processes for forming them are described herein. In one or more embodiments, the invention is directed to meltblown nonwoven fabrics having at least one elastic layer, wherein the elastic layer comprises a propylene-based polymer having an MFR greater than about 25 g/10 min. Additionally, the propylene-based polymer comprises from about 5 to about 25 wt % of one or more C2 and/or C4-C12 α-olefins and has a triad tacticity greater than about 90% and a heat of fusion less than about 75 J/g. The present invention is also directed to processes for forming meltblown nonwoven fabrics comprising forming a molten propylene-based polymer having an MFR of at least about 25 g/10 min, forming fibers comprising the propylene-based polymer, and forming an elastic nonwoven layer from the fibers.
摘要翻译：熔喷非织造组合物及其形成方法在本文中描述。在一个或多个实施方案中，本发明涉及具有至少一个弹性层的熔喷非织造织物，其中弹性层包含MFR大于约25g / 10min的丙烯类聚合物。另外，基于丙烯的聚合物包含约5至约25重量％的一种或多种C 2和/或C 4 -C 12α-烯烃，并且具有大于约90％的三单元立构规整度和小于约75J的熔融热 /G。本发明还涉及用于形成熔喷非织造织物的方法，其包括形成MFR至少约25g / 10min的熔融丙烯基聚合物，形成包含基于丙烯的聚合物的纤维，并从纤维。

10. 发明授权

US5891814A Nonwoven fabrics 失效
标题翻译：无纺布
公开(公告)号：US5891814A
公开(公告)日：1999-04-06
申请号：US800436
申请日：1997-02-18
申请人： Galen C. Richeson , Glenn A. Stahl , James J. McAlpin , Anthony N. Speca
发明人： Galen C. Richeson , Glenn A. Stahl , James J. McAlpin , Anthony N. Speca
IPC分类号： C08F4/642 , C08F4/6592 , C08F8/00 , C08F10/00 , C08L23/12 , D01F6/06 , D03D15/00 , D04H1/54 , D04H1/56 , D04H3/16
CPC分类号： C08L23/12 , D01F6/06 , D04H1/4291 , D04H1/56 , D04H3/007 , D04H3/16 , Y10S242/918 , Y10T428/26 , Y10T428/29 , Y10T428/2907 , Y10T428/2913 , Y10T428/2915 , Y10T428/2964 , Y10T428/2967 , Y10T428/2969 , Y10T428/298 , Y10T442/20 , Y10T442/30 , Y10T442/40 , Y10T442/68 , Y10T442/681
摘要： This invention relates to improved polypropylene nonwoven fabrics. The fabrics are made from isotactic polypropylene which has been produced with a catalyst systems comprising at least two metallocenes. These nonwoven fabrics, particularly when prepared using a spunbonding process, exhibit significantly improved strength without significant sacrifice of other favorable properties.
摘要翻译：本发明涉及改进的聚丙烯无纺织物。织物由具有包含至少两种金属茂的催化剂体系生产的全同立构聚丙烯制成。这些非织造织物，特别是当使用纺粘法制备时，表现出显着提高的强度，而不会显着牺牲其它有利的性能。

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