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18 条记录 (耗时 0.041 秒)

    Tap-mediated, rheology-modified polymers and preparation methods
    1.
    发明申请
    Tap-mediated, rheology-modified polymers and preparation methods 审中-公开
    水分子介导的流变改性聚合物及其制备方法

    公开(公告)号：US20080188623A1

    公开(公告)日：2008-08-07

    申请号：US11592524

    申请日：2006-11-03

    申请人： Bharat I. Chaudhary ,  Malcolm F. Finlayson ,  Stephen F. Hahn ,  Stephane Costeux ,  John Scott Parent ,  Saurav S. Sengupta

    发明人： Bharat I. Chaudhary ,  Malcolm F. Finlayson ,  Stephen F. Hahn ,  Stephane Costeux ,  John Scott Parent ,  Saurav S. Sengupta

    IPC分类号： C08F8/40

    CPC分类号： C08F8/40

    摘要： The present invention yields a triallyl phosphate (TAP)-mediated, rheology-modified polymer being prepared in a reaction from a reaction mixture made from or containing (a) a free-radical, chain-scissionable organic polymer and (b) TAP, wherein the TAP-mediated, rheology-modified polymer has extensional viscosity at Hencky strains above one greater than that of the free-radical, chain-scissionable organic polymer and/or a Relaxation Spectra Index (RSI) greater than that of the free-radical, chain-scissionable organic polymer.

    摘要翻译： 本发明产生了一种由烯丙基（TAP）介导的流变学改性的聚合物，它是在由（a）自由基，可断开的有机聚合物和（b）TAP制成的反应混合物的反应中制备的，其中 TAP介导的流变改性聚合物在Hencky菌株具有比自由基，可断开链段的有机聚合物和/或大于自由基的松弛光谱指数（RSI）大一倍以上的拉伸粘度， 可断链的有机聚合物。

    CROSSLINKED POLYETHYLENE ELASTIC FIBERS
    3.
    发明申请
    CROSSLINKED POLYETHYLENE ELASTIC FIBERS 失效
    交联聚乙烯弹性纤维

    公开(公告)号：US20090306280A1

    公开(公告)日：2009-12-10

    申请号：US12162913

    申请日：2007-02-07

    申请人： Shih-Yaw Lai ,  Yuen-Yuen D. Chiu ,  Ashish Sen ,  Stephane Costeux

    发明人： Shih-Yaw Lai ,  Yuen-Yuen D. Chiu ,  Ashish Sen ,  Stephane Costeux

    IPC分类号： C08L23/00 ,  C08F210/00 ,  C08L23/06 ,  C08F110/02

    CPC分类号： D01F6/46 ,  D01F8/06

    摘要： The present invention relates to crosslinked, olefin elastic fibers where the olefin materials are specifically selected to provide a more robust fiber with higher tenacity and greater temperature stability. Such fibers will be less subject to breakage during fiber spinning and post-spinning (downstream processing) operations including spool formation and unwinding. The specific olefin material used is a blend having an overall melt index (I2) of less than 2.5 g/10 min before crosslinking with a density in the range of 0.865 to 0.885 g/cm3. One component of the blend will be characterized as having either a density in the range of from 0.855 to 0.88 g/cm3 or a residual crystallinity at 80° C. of greater than 9 percent but not both. The at least one other component will meet at least whichever characteristic the first component does not meet.

    摘要翻译： 本发明涉及交联的烯烃弹性纤维，其中烯烃材料被特别选择以提供具有更高韧性和更高温度稳定性的更坚固的纤维。 在纤维纺丝和后纺（下游处理）操作中，这种纤维将不会发生断裂，包括卷筒的形成和展开。 使用的特定烯烃材料是在0.865至0.885g / cm 3的密度交联之前具有小于2.5g / 10min的总体熔体指数（I 2）的共混物。 共混物的一种组分将被表征为具有在0.855至0.88g / cm 3范围内的密度或在80℃下的残余结晶度大于9％但不是均为二者。 至少一个其他组件将至少满足第一个组件不符合的特征。

    ARTICLE AND METHOD OF PRODUCING A LOW DENSITY FOAM BLEND OF STYRENIC POLYMER AND POLYOLEFIN
    6.
    发明申请
    ARTICLE AND METHOD OF PRODUCING A LOW DENSITY FOAM BLEND OF STYRENIC POLYMER AND POLYOLEFIN 审中-公开
    STYRENIC聚合物和聚烯烃的低密度泡沫混合物的制造方法

    公开(公告)号：US20090197983A1

    公开(公告)日：2009-08-06

    申请号：US12334877

    申请日：2008-12-15

    申请人： Chau Van Vo ,  David J. Frankowski ,  Stephane Costeux

    发明人： Chau Van Vo ,  David J. Frankowski ,  Stephane Costeux

    IPC分类号： C08J9/00 ,  C08L25/12

    CPC分类号： C08J9/122 ,  C08J9/0061 ,  C08J2201/03 ,  C08J2205/052 ,  C08J2325/04 ,  C08J2325/12 ,  C08J2423/00

    摘要： An extruded polymeric foam comprising a styrenic polymer and an olefinic polymer, the olefinic polymer in an amount less than the amount of the styrenic polymer. The styrenic polymer and the olefinic polymer are present as a blend, preferably free of an interpolymer or compatiblizer. The foam has a density below about 36 kg/m3 (as measured by ASTM D1622-03), a vertical compressive strength greater than about 100 kPa (as measured by ASTM D1621-04) and a compressive strength ratio greater than about 0.35.

    摘要翻译： 包含苯乙烯聚合物和烯烃聚合物的挤出聚合物泡沫体，该烯烃聚合物的量小于苯乙烯聚合物的量。 苯乙烯聚合物和烯烃聚合物作为共混物存在，优选不含互聚物或增容剂。 泡沫的密度低于约36kg / m 3（通过ASTM D1622-03测量），大于约100kPa的垂直压缩强度（通过ASTM D1621-04测量），抗压强度比大于约0.35。

    Polyethylene Resin Compositions Having Low Mi And High Melt Strengh
    7.
    发明申请
    Polyethylene Resin Compositions Having Low Mi And High Melt Strengh 审中-公开
    具有低密度和高熔体强度的聚乙烯树脂组合物

    公开(公告)号：US20080125547A1

    公开(公告)日：2008-05-29

    申请号：US11816970

    申请日：2006-03-03

    申请人： Kurt Swogger ,  Pak-Wing S. Chum ,  Thomas Oswald ,  Stephane Costeux

    发明人： Kurt Swogger ,  Pak-Wing S. Chum ,  Thomas Oswald ,  Stephane Costeux

    IPC分类号： C08L23/00

    CPC分类号： C08L23/04 ,  C08L2205/02 ,  C08L2666/06 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/11 ,  C08F2500/12

    摘要： Ethylene polymer compositions comprising a high molecular weight high density polyethylene resin and a low density polyethylene resin are disclosed, where the polymer composition has a comparatively high melt strength for a given melt index. The compositions comprise from 25 to 99 percent by weight of the composition of a linear or substantially linear polyethylene polymer having a density of at least about 0.90 g/cc, and an I21 of less than about 20; and from 1 to 25 percent by weight of the composition of a high pressure low density type polyethylene resin having a melt index (I2) less than about 5, a molecular weight distribution greater than about 10, a Mw_abs/Mw_gpc ratio (“Gr”) of at least 2.7, and a melt strength at 190° C. greater than 19.0−12.6*log10(Mi). The compositions of the present invention are particularly well suited for blown film and thermoforming applications.

    摘要翻译： 公开了包含高分子量高密度聚乙烯树脂和低密度聚乙烯树脂的乙烯聚合物组合物，其中聚合物组合物对于给定的熔体指数具有相对较高的熔体强度。 该组合物包含25至99重量％的组合物，其密度为至少约0.90g / cc，I21小于约20的直链或基本上线性的聚乙烯聚合物; 和组合物的1至25重量％的熔体指数（I 2）小于约5，分子量分布大于约10，Mw_abs / Mw_gpc比（“Gr”）的高压低密度型聚乙烯树脂， ）至少为2.7，熔体强度为190℃，大于19.0-12.6 * log10（Mi）。 本发明的组合物特别适用于吹塑薄膜和热成型应用。

    Thermally-reversible crosslinking of polymers
    8.
    发明申请
    Thermally-reversible crosslinking of polymers 审中-公开
    聚合物的热可逆交联

    公开(公告)号：US20070149711A1

    公开(公告)日：2007-06-28

    申请号：US10583294

    申请日：2004-12-24

    申请人： Bharat Chaudhary ,  Stephane Costeux ,  John Klier ,  Thomas Peterson ,  Eric Wasserman

    发明人： Bharat Chaudhary ,  Stephane Costeux ,  John Klier ,  Thomas Peterson ,  Eric Wasserman

    IPC分类号： C08F263/00

    CPC分类号： C08F8/00 ,  C08K5/14 ,  C08K5/3435 ,  C08F14/00 ,  C08F12/00 ,  C08F10/00

    摘要： The present invention is a rheology-modifiable polymeric composition or a free-radical crosslinkable polymeric composition, wherein the resulting rheologymodifying bond or crosslinking bond is a thermally-reversible bond. The resulting polymer is prepared from at least one polymer which upon forming free radicals preferentially degrades or carbon-carbon crosslinks. The present invention permits suppression of the preferential reaction while permitting the polymer to be coupled or crosslinked through a thermally-reversible bond. Suppressing the undesirable degradation or carbon-carbon crosslinking reaction and permitting the desirable reaction yield a rheology-modified polymer or a free-radical thermally-reversibly crosslinked polymer.

    摘要翻译： 本发明是可流变改性的聚合物组合物或自由基可交联聚合物组合物，其中所得的流变改性键或交联键是热可逆键。 所得聚合物由至少一种聚合物制备，其在形成自由基时优先降解或碳 - 碳交联。 本发明允许抑制优选反应，同时允许聚合物通过热可逆键结合或交联。 抑制不期望的降解或碳 - 碳交联反应并允许所需的反应产生流变改性聚合物或自由基热可逆交联的聚合物。

    POLYOLEFIN COMPOSITIONS, ARTICLES MADE THEREFROM AND METHODS FOR PREPARING THE SAME
    10.
    发明申请
    POLYOLEFIN COMPOSITIONS, ARTICLES MADE THEREFROM AND METHODS FOR PREPARING THE SAME 审中-公开
    聚烯烃组合物及其制备方法及其制备方法

    公开(公告)号：US20100056727A1

    公开(公告)日：2010-03-04

    申请号：US12064308

    申请日：2006-08-18

    申请人： Colin LiPiShan ,  Mridula (Babli) Kapur ,  Stephane Costeux ,  David T. Gillespie

    发明人： Colin LiPiShan ,  Mridula (Babli) Kapur ,  Stephane Costeux ,  David T. Gillespie

    IPC分类号： C08L23/06

    CPC分类号： C08L23/08 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

    摘要： The invention provides compositions for blow molding applications and other applications, where such compositions comprise a high density ethylene polymer and a high molecular weight ethylene polymer. In these compositions, the high density ethylene polymer has a density greater than the density of the high molecular weight ethylene polymer, and the high molecular weight ethylene polymer has a weight average molecular weight greater than the weight average molecular weight of the high density ethylene polymer, and in addition, the high density ethylene polymer has a density from 0.94 g/cm3 to 0.98 g/cm3, and a molecular weight distribution, Mw/Mn, greater than 8, and the high molecular weight ethylene polymer has a weight average molecular weight greater than 200,000 g/mole, and a molecular weight ratio, Mz/Mw, less than 5.

    摘要翻译： 本发明提供用于吹塑应用和其它应用的组合物，其中这种组合物包含高密度乙烯聚合物和高分子量乙烯聚合物。 在这些组合物中，高密度乙烯聚合物的密度大于高分子量乙烯聚合物的密度，高分子量乙烯聚合物的重均分子量大于高密度乙烯聚合物的重均分子量 另外，高密度乙烯聚合物的密度为0.94g / cm 3至0.98g / cm 3，分子量分布Mw / Mn大于8，高分子量乙烯聚合物的重均分子量 重量大于200,000g / mol，分子量比Mz / Mw小于5。