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    Spunbond fibers and fabrics from polyolefin blends
    1.
    发明授权
    Spunbond fibers and fabrics from polyolefin blends 有权
    纺粘纤维和聚烯烃共混物的织物

    公开(公告)号：US08728960B2

    公开(公告)日：2014-05-20

    申请号：US11655399

    申请日：2007-01-19

    Applicant: Smita Kacker ,  Chia Yung Cheng

    Inventor： Smita Kacker ,  Chia Yung Cheng

    IPC: D04H3/16 ,  C08L23/04

    CPC classification number: D01F6/46 ,  C08L23/10 ,  C08L2203/12 ,  C08L2205/02 ,  D04H3/16 ,  Y10T442/681 ,  C08L2666/06

    Abstract: The invention described relates to a polyolefin blend composition suitable for spunbond fiber or filament compositions, and to fabric compositions and composite constructions therefrom, said blend comprising a) from 60-98 wt % of at least one random propylene copolymer having a comonomer content of from 8 to 25 wt % and a crystalline melting point (Tm) as determined by differential scanning calorimetry (DSC) of from about 40° C. to about 110° C.; and b) from 2-40 wt % of at least one substantially isotactic polypropylene homopolymer or copolymer comprising one or more C2 and/or C4-C8 comonomer, having a crystalline melting point (Tm) as determined by DSC greater than or equal to 120° C. The blends of the present invention typically have a melt flow rate (MFR) of from 100 g/10 min to about 500 g/10 min.

    Abstract translation: 所描述的本发明涉及适用于纺粘纤维或长丝组合物的聚烯烃共混组合物，以及由其组成的织物组合物和复合结构，所述共混物包含a）60-98重量％的至少一种无规丙烯共聚物，其共聚单体含量为 8〜25重量％，差示扫描量热法（DSC）测定的结晶熔点（Tm）为约40〜110℃。 和b）2-40重量％的至少一种基本上全同立构的聚丙烯均聚物或共聚物，其包含一个或多个C2和/或C4-C8共聚单体，其具有通过DSC测定的结晶熔点（Tm）大于或等于120 本发明的共混物通常具有100g / 10min至约500g / 10min的熔体流动速率（MFR）。

    Fibers and non-wovens prepared with propylene-based elastomers
    2.
    发明授权
    Fibers and non-wovens prepared with propylene-based elastomers 有权
    用丙烯基弹性体制备的纤维和非织造布

    公开(公告)号：US08101534B2

    公开(公告)日：2012-01-24

    申请号：US11938030

    申请日：2007-11-09

    Applicant: Narayanaswami Raja Dharmarajan ,  Vincent B. Gallez ,  Smita Kacker ,  Chia Yung Cheng

    Inventor： Narayanaswami Raja Dharmarajan ,  Vincent B. Gallez ,  Smita Kacker ,  Chia Yung Cheng

    IPC: D04H3/00

    CPC classification number: D01F6/46 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  D04H1/4291 ,  D04H1/4382 ,  D04H3/16 ,  Y10T442/60 ,  Y10T442/601 ,  Y10T442/602 ,  C08L2666/06 ,  C08L2666/08

    Abstract: A non-woven fabric made from a composition prepared by combining a first propylene-based polymer blend, where the first polymer blend is prepared by combining a propylene-based elastomer with a propylene-based thermoplastic resin and where the first blend has an MFR (ASTM D-1238 2.16 kg @ 230° C.) equal to or less than 50 dg/min, with a second propylene-based polymer blend, where the second polymer blend is prepared by combining a propylene-based elastomer with a propylene-based thermoplastic resin and where said second blend has an MFR (ASTM D-1238 2.16 kg @ 230° C.) greater than 50 dg/min, where the propylene-based elastomers comprise from about 5% to 35% by weight units derived from ethylene or non-propylene alpha-olefin and have a heat of fusion, as determined by DSC, of less than 80 J/g, and where the propylene-based thermoplastic resins have a heat of fusion, as determined by DSC, equal to or greater than 80 J/g.

    Abstract translation: 一种由通过组合第一基于丙烯的聚合物共混物制备的组合物制成的无纺织物，其中通过将基于丙烯的弹性体与丙烯类热塑性树脂组合制备第一聚合物共混物，其中第一共混物具有MFR ASTM D-1238 2.16kg @ 230℃）等于或小于50dg / min，与第二丙烯类聚合物共混物，其中第二聚合物共混物通过将基于丙烯的弹性体与基于丙烯的弹性体 热塑性树脂，其中所述第二共混物具有大于50dg / min的MFR（ASTM D-1238 2.16kg，230℃），其中丙烯类弹性体包含衍生自乙烯的约5％至35％重量的单元 或非丙烯α-烯烃，并且通过DSC测定的熔融热小于80J / g，并且其中丙烯类热塑性树脂具有通过DSC测定的熔化热等于或大于 超过80 J / g。

    Chromium complexes and their use in olefin polymerization
    3.
    发明授权
    Chromium complexes and their use in olefin polymerization 失效
    铬络合物及其在烯烃聚合中的应用

    公开(公告)号：US07498287B2

    公开(公告)日：2009-03-03

    申请号：US11904056

    申请日：2007-09-25

    Applicant: Smita Kacker ,  Enock Berluche ,  Robert T. Stibrany ,  Joseph A. Sissano ,  Lisa S. Baugh

    Inventor： Smita Kacker ,  Enock Berluche ,  Robert T. Stibrany ,  Joseph A. Sissano ,  Lisa S. Baugh

    IPC: C08F4/69

    CPC classification number: C07F11/005 ,  B01J31/143 ,  B01J31/183 ,  C08F110/02 ,  C08F4/69034

    Abstract: A composition having the formula I where R1 and R2 are independently hydrogen, C1 to C12 linear and branched alkyl, C3 to C12 cycloalkyl, aryl, C1 to C12 alkoxy, F, Cl, SO3, C1 to C12 perfluoroalkyl, and N(CH3)2, R3 is independently selected from the group consisting of hydrogen, C1 to C12 linear and branched alkyl, C3 to C12 cycloalkyl, aryl, and 2,2,2-trifluoroethyl, A is —C(R4)—, —(CH2)x—, —(CH2)xNH(CH2)x—, or —CY2CY2—, where R4 is a hydrocarbyl, halosubstituted hydrocarbyl, or alkoxy group of from 1 to 12 carbon atoms, x is an integer from 1 to 12, and Y is halogen, and X is halogen, triflate, acetate, trifluoroacetate, hydride, or tetrafluoroborate. When combined with an activating co-catalyst is useful polymerizing olefinic monomers.

    Abstract translation: 具有式I的组合物，其中R1和R2独立地为氢，C1至C12直链和支链烷基，C3至C12环烷基，芳基，C1至C12烷氧基，F，C1，SO3，C1至C12全氟烷基和N（​​CH3） 2，R 3独立地选自氢，C 1至C 12直链和支链烷基，C 3至C 12环烷基，芳基和2,2,2-三氟乙基，A是-C（R 4） - ， - （CH 2） x - ， - （CH 2）x NH（CH 2）x - 或-CY 2 CY 2 - ，其中R 4是烃基，卤代烃基或具有1至12个碳原子的烷氧基，x是1至12的整数，Y 是卤素，X是卤素，三氟甲磺酸酯，乙酸酯，三氟乙酸酯，氢化物或四氟硼酸根。 当与活化助催化剂组合时，有用的是使烯烃单体聚合。

    Chromium complexes and their use in olefin polymerization
    5.
    发明申请
    Chromium complexes and their use in olefin polymerization 有权
    铬络合物及其在烯烃聚合中的应用

    公开(公告)号：US20050288464A1

    公开(公告)日：2005-12-29

    申请号：US11152802

    申请日：2005-06-14

    Applicant: Smita Kacker ,  Enock Berluche ,  Robert Stibrany ,  Joseph Sissano ,  Lisa Baugh

    Inventor： Smita Kacker ,  Enock Berluche ,  Robert Stibrany ,  Joseph Sissano ,  Lisa Baugh

    IPC: C07F11/00 ,  C08F4/06 ,  C08F110/02

    CPC classification number: C07F11/005 ,  B01J31/143 ,  B01J31/183 ,  C08F110/02 ,  C08F4/69034

    Abstract: A composition having the formula I where R1 and R2 are independently hydrogen, C1 to C12 linear and branched alkyl, C3 to C12 cycloalkyl, aryl, C1 to C12 alkoxy, F, Cl, SO3, C1 to C12 perfluoroalkyl, and N(CH3)2, R3 is independently selected from the group consisting of hydrogen, C1 to C12 linear and branched alkyl, C3 to C12 cycloalkyl, aryl, and 2,2,2-trifluoroethyl, A is —C(R4)—, —(CH2)x—, —(CH2)xNH(CH2)x—, or —CY2CY2—, where R4 is a hydrocarbyl, halosubstituted hydrocarbyl, or alkoxy group of from 1 to 12 carbon atoms, x is an integer from 1 to 12, and Y is halogen, and X is halogen, triflate, acetate, trifluoroacetate, hydride, or tetrafluoroborate. When combined with an activating co-catalyst is useful in polymerizing olefinic monomers.

    Abstract translation: 具有式I的组合物，其中R 1和R 2独立地是氢，C 1至C 12直链 和支链烷基，C 3至C 12环烷基，芳基，C 1至C 12烷氧基，F， Cl，SO 3，C 1至C 12全氟烷基和N（​​CH 3 3）2 R 3，R 3独立地选自氢，C 1至C 12直链和支链烷基，C 1〜 C 1 -C 4 - （CH 3） - ，其中C（R 4） - ， x（CH 2）2 - ， - （CH 2 CH 2）x NH 2（CH 2） ）其中R 4是烃基，卤代烃基，卤代烃基， 或1至12个碳原子的烷氧基，x是1至12的整数，Y是卤素，X是卤素，三氟甲磺酸酯，乙酸酯，三氟乙酸酯，氢化物或四氟硼酸根。 当与活化助催化剂组合时，可用于聚合烯烃单体。

    Process for forming polymer blends
    9.
    发明授权
    Process for forming polymer blends 有权
    形成聚合物共混物的方法

    公开(公告)号：US08293842B2

    公开(公告)日：2012-10-23

    申请号：US13132675

    申请日：2009-12-10

    Applicant: Vetkav R. Eswaran ,  Bruce A. Harrington ,  Robert F. Bahm ,  Smita Kacker

    Inventor： Vetkav R. Eswaran ,  Bruce A. Harrington ,  Robert F. Bahm ,  Smita Kacker

    IPC: C08J3/00 ,  C08L23/16 ,  D01F6/46 ,  C08L23/14

    CPC classification number: C08L23/14 ,  C08J3/005 ,  C08J2323/14 ,  C08J2323/16 ,  C08L23/10 ,  C08L23/12 ,  C08L23/16 ,  D01F6/46 ,  C08L2666/06

    Abstract: A method for forming a polymer blend, the method comprising charging to a reactive extruder a first polymer and a second polymer to form an initial blend, where the first polymer is a propylene-based elastomer including up to 35% by weight ethylene-derived units and a heat of fusion, as determined according to DSC procedures according to ASTM E-793, of less than 80 J/g and a melt temperature of less than 110° C., where the second polymer is a propylene-based polymer having a melt temperature in excess of 110° C. and a heat of fusion in excess of 80 J/g.

    Abstract translation: 一种用于形成聚合物共混物的方法，所述方法包括将第一聚合物和第二聚合物装入反应性挤出机以形成初始共混物，其中第一聚合物是基于丙烯的弹性体，其包含至多35重量％的来自乙烯的单元 以及根据ASTM E-793的DSC程序测定的小于80J / g和小于110℃的熔体温度的熔化热，其中第二聚合物是丙烯类聚合物，其具有 熔融温度超过110℃，熔融热超过80J / g。

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