Nonwoven fabric, method for producing nonwoven fabric, and absorbent article
    2.
    发明授权
    Nonwoven fabric, method for producing nonwoven fabric, and absorbent article 有权
    无纺布,无纺布的制造方法以及吸收性物品

    公开(公告)号:US08273941B2

    公开(公告)日:2012-09-25

    申请号:US12532785

    申请日:2008-04-14

    IPC分类号: A61F13/15 D04H1/50

    摘要: The invention provides a nonwoven fabric having good fluid drawing properties, in which fluid hardly remains, a method for producing a nonwoven fabric, and an absorbent article.The nonwoven fabric has a thickness direction and a planar direction perpendicular to the thickness direction, and includes a high density region having a higher fiber density than an average fiber density. The high density region penetrates from one side to another side in the thickness direction.

    摘要翻译: 本发明提供一种流体几乎不残留的流体拉伸性良好的无纺布,无纺布的制造方法以及吸收性物品。 无纺布具有与厚度方向垂直的厚度方向和平面方向,并且包括具有比平均纤维密度高的纤维密度的高密度区域。 高密度区域在厚度方向从一侧渗透到另一侧。

    Method for producing modified conjugated diene polymer, modified conjugated diene polymer, and rubber composition
    3.
    发明授权
    Method for producing modified conjugated diene polymer, modified conjugated diene polymer, and rubber composition 有权
    改性共轭二烯聚合物,改性共轭二烯聚合物和橡胶组合物的制备方法

    公开(公告)号:US08404785B2

    公开(公告)日:2013-03-26

    申请号:US12521124

    申请日:2007-12-27

    摘要: A method for producing a modified conjugated diene polymer includes a step (A) carrying out a primary modification reaction that reacts a heterocumulene compound having two or more specific functional groups with a conjugated diene polymer having a vinyl content of below 10% and a cis-1,4-bond content of 75% or more and possessing an active end to obtain a primary-modified conjugated diene polymer, and a step (B) carrying out a secondary modification reaction that reacts an active hydrogen-containing compound that includes one or more functional groups selected from the group consisting of an amino group, an imino group, a mercapto group, and a hydroxyl group with the primary-modified conjugated diene polymer to obtain a secondary-modified conjugated diene polymer. The method can produce a modified conjugated diene polymer that exhibits low heat build-up (low fuel consumption) and excellent wear resistance.

    摘要翻译: 改性共轭二烯系聚合物的制造方法包括:使具有2个以上的特定官能团的异葎草类化合物与乙烯基含量低于10%的共轭二烯系聚合物进行一次改性反应的步骤(A) 1,4-键含量为75%以上,具有活性末端以获得一次改性共轭二烯聚合物,和进行二次改性反应的步骤(B),其使含有活性氢的化合物反应,所述活性含氢化合物包括一个或多个 更多的选自氨基,亚氨基,巯基和羟基的官能团与初级改性共轭二烯聚合物反应,得到二次改性共轭二烯聚合物。 该方法可以生产出低发热(低燃料消耗)和优异的耐磨性的改性共轭二烯聚合物。

    Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition
    4.
    发明授权
    Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition 有权
    用于制备共轭二烯聚合物,共轭二烯聚合物和橡胶组合物的方法

    公开(公告)号:US08153723B2

    公开(公告)日:2012-04-10

    申请号:US12096263

    申请日:2006-12-05

    IPC分类号: C08L9/00 C08F4/44

    摘要: A process for simply and inexpensively producing a conjugated diene polymer with a narrow molecular weight distribution and a high cis-bond content at a low cost is provided. The process comprises a polymerization step, wherein a conjugated diene polymer having a cis-1,4-bond content of 98.5 mass % or more and a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) measured by gel permeation chromatography of 2.5 or less is obtained by carrying out a polymerization reaction in conjugated diene compounds using a catalyst composition containing a rare earth element-containing compound or a reaction product of the rare earth element-containing compound with a Lewis base, an aluminoxane and/or organoaluminum compound, and an iodine-containing compound.

    摘要翻译: 提供了一种以低成本简单且廉价地制备具有窄分子量分布和高顺式键含量的共轭二烯聚合物的方法。 该方法包括聚合步骤,其中顺式-1,4-键含量为98.5质量%以上的共轭二烯聚合物和重均分子量(Mw)与数均分子量(Mw)的比(Mw / Mn) 通过凝胶渗透色谱法测定的重量(Mn)为2.5以下,通过使用含有含稀土元素化合物的催化剂组合物或含稀土元素化合物的反应产物与共轭二烯化合物的反应, 路易斯碱,铝氧烷和/或有机铝化合物,以及含碘化合物。

    PROCESS FOR PRODUCING MODIFIED POLYMER, MODIFIED POLYMER OBTAINED BY THE PROCESS, AND RUBBER COMPOSITION CONTAINING THE SAME
    5.
    发明申请
    PROCESS FOR PRODUCING MODIFIED POLYMER, MODIFIED POLYMER OBTAINED BY THE PROCESS, AND RUBBER COMPOSITION CONTAINING THE SAME 审中-公开
    生产改性聚合物,由该方法获得的改性聚合物的方法和含有该聚合物的橡胶组合物

    公开(公告)号:US20100016500A1

    公开(公告)日:2010-01-21

    申请号:US12446681

    申请日:2007-10-25

    IPC分类号: C08L9/00 C08F136/04

    摘要: A process for producing a modified polymer that exhibits low rolling resistance, excellent mechanical properties (e.g., tensile strength), high wet-skid resistance, and excellent wear resistance when vulcanized, a modified polymer obtained by the process, and a rubber composition containing the same. The process includes subjecting an alkali metal active end of a conjugated diene polymer to a modification reaction with an alkoxysilane compound, the conjugated diene polymer being produced by subjecting a diene monomer or a diene monomer and a monomer other than the diene monomer to anionic polymerization in a hydrocarbon solvent using an alkali metal initiator, and subjecting the resulting product to a condensation reaction in the presence of a condensation accelerator that includes a compound of at least one element among the elements of the groups 4A (excluding Ti), 2B, 3B, and 5B of the periodic table.

    摘要翻译: 一种改性聚合物的制造方法,其具有低滚动阻力,优异的机械性能(例如拉伸强度),高耐湿滑性和耐硫化性优异的耐磨性,通过该方法获得的改性聚合物和含有 相同。 该方法包括使共轭二烯聚合物的碱金属活性末端与烷氧基硅烷化合物进行改性反应,所述共轭二烯聚合物通过使二烯单体或二烯单体和除二烯单体以外的单体进行阴离子聚合而制备 使用碱金属引发剂的烃溶剂,并且在冷凝促进剂存在下使所得产物进行缩合反应,所述缩合促进剂包括4A族(不包括Ti),2B,3B等元素中的至少一种元素的化合物, 和5B。

    Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition
    7.
    发明授权
    Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition 有权
    用于制备共轭二烯聚合物,共轭二烯聚合物和橡胶组合物的方法

    公开(公告)号:US08557915B2

    公开(公告)日:2013-10-15

    申请号:US13371780

    申请日:2012-02-13

    IPC分类号: C08L9/00 C08F4/06

    摘要: A process for simply and inexpensively producing a conjugated diene polymer with a narrow molecular weight distribution and a high cis-bond content at a low cost is provided. The process comprises a polymerization step, wherein a conjugated diene polymer having a cis-1,4-bond content of 98.5 mass % or more and a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) measured by gel permeation chromatography of 2.5 or less is obtained by carrying out a polymerization reaction in conjugated diene compounds using a catalyst composition containing a rare earth element-containing compound or a reaction product of the rare earth element-containing compound with a Lewis base, an aluminoxane and/or organoaluminum compound, and an iodine-containing compound.

    摘要翻译: 提供了一种以低成本简单且廉价地制备具有窄分子量分布和高顺式键含量的共轭二烯聚合物的方法。 该方法包括聚合步骤,其中顺式-1,4-键含量为98.5质量%以上的共轭二烯聚合物和重均分子量(Mw)与数均分子量(Mw)的比率(Mw / Mn) 通过凝胶渗透色谱法测定的重量(Mn)为2.5以下,通过使用含有含稀土元素化合物的催化剂组合物或含稀土元素化合物的反应产物与共轭二烯化合物的反应, 路易斯碱,铝氧烷和/或有机铝化合物,以及含碘化合物。