Modified polymers prepared with lanthanide-based catalysts
    1.
    发明授权
    Modified polymers prepared with lanthanide-based catalysts 有权
    用镧系元素催化剂制备的改性聚合物

    公开(公告)号:US07750087B2

    公开(公告)日:2010-07-06

    申请号:US11244999

    申请日:2005-10-06

    IPC分类号: C08C19/00 C08F8/00

    摘要: A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) where A is a substituent that will undergo an addition reaction with a pseudo-living polymer, R1 is a divalent organic group, R2 is a monovalent organic group, and each R4, which may be the same or different, is a monovalent organic group or a substituent defined by —OR5 where R5 is a monovalent organic group, with the proviso that A, R1, R2, R4, and R5 are substituents that will not protonate a pseudo-living polymer. Also, the functionalized polymer and a vulcanizable composition containing the polymer.

    摘要翻译: 一种制备官能化聚合物的方法,包括以下步骤:通过使共轭二烯单体与镧系元素基催化剂聚合制备假活性聚合物,并使假活性聚合物与式(I)定义的至少一种官能化试剂反应,其中 A是将与假活性聚合物进行加成反应的取代基,R 1是二价有机基团,R 2是一价有机基团,并且各个可以相同或不同的R 4是一价有机基团或 由-OR5定义的取代基,其中R5是一价有机基团,条件是A,R1,R2,R4和R5是不会使假活性聚合物质子化的取代基。 此外,官能化聚合物和含有聚合物的可硫化组合物。

    Modified polymers prepared with lanthanide-based catalysts

    公开(公告)号:US06977281B1

    公开(公告)日:2005-12-20

    申请号:US10296082

    申请日:2000-11-10

    摘要: A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, where said pseudo-living polymer is characterized by having greater than about 85 percent of the polymer in the cis microstructure and less than about 3 percent of the polymer is in the 1,2- or 3,4-microstructure, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) or (II) where Z is a substituent that will react or interact with organic or inorganic fillers; R1 is a single bond or a divalent organic group; R2 is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R13 or R14; R3 is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R4 or R5; R13 is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R2 or R14; R4 is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R3 or R5; R14 is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R2 or R13; and R5 is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R3 or R4; with the proviso that each group attached to the imino carbon is attached via a carbon atom and R1, R2, R3, R4, R5, R13, R14 and Z are substituents that will not protonate a pseudo-living polymer.

    Modified polymers prepared with lanthanide-based catalysts
    5.
    发明授权
    Modified polymers prepared with lanthanide-based catalysts 有权
    用镧系元素催化剂制备的改性聚合物

    公开(公告)号:US07671136B2

    公开(公告)日:2010-03-02

    申请号:US11243874

    申请日:2005-10-05

    IPC分类号: C08F8/30

    摘要: A functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, the polymer having greater than about 85 percent in the 1,4-cis microstructure and less than about 3 percent in the 1,2- or 3,4-microstructure, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) or (II): where Z is a substituent that will react or interact with organic or inorganic fillers; with the proviso that each group attached to the imino carbon is attached via a carbon atom and R1, R2, R3, R4, R5, R13, R14 and Z are substituents that will not protonate a pseudo-living polymer.

    摘要翻译: 通过包括以下步骤制备的官能化聚合物的方法,所述方法包括通过使共轭二烯单体与镧系元素基催化剂聚合来制备假活性聚合物,所述聚合物在1,4-顺式显微组织中具有大于约85%且小于约3 在1,2-或3,4-微结构中的百分比,并使假活性聚合物与由式(I)或(II)定义的至少一种官能化试剂反应:其中Z是将与 有机或无机填料; 条件是通过碳原子连接到亚氨基碳上的每个基团,并且R 1,R 2,R 3,R 4,R 5,R 13,R 14和Z是不会使假活性聚合物质子化的取代基。

    Modified polymers prepared with lanthanide-based catalysts
    8.
    发明授权
    Modified polymers prepared with lanthanide-based catalysts 有权
    用镧系元素催化剂制备的改性聚合物

    公开(公告)号:US06992147B1

    公开(公告)日:2006-01-31

    申请号:US10296084

    申请日:2000-11-10

    IPC分类号: C08C19/00 C08F8/00

    摘要: A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) where A is a substituent that will undergo an addition reaction with a pseudo-living polymer, R1 is a divalent organic group, R2 is a monovalent organic group, and each R4, which may be the same or different, is a monovalent organic group or a substituent defined by —OR5 where R5 is a monovalent organic group, with the proviso that A, R1, R2, R4, and R5 are substituents that will not protonate a pseudo-living polymer. Also, the functionalized polymer and a vulcanizable composition containing the polymer.

    摘要翻译: 一种制备官能化聚合物的方法,包括以下步骤:通过使共轭二烯单体与镧系元素基催化剂聚合制备假活性聚合物,并使假活性聚合物与至少一种由式(I)定义的官能化试剂反应,其中 A是将与假活性聚合物进行加成反应的取代基,R 1是二价有机基团,R 2是一价有机基团,并且每个R 可以相同或不同的一价有机基团或由-OR 5定义的取代基,其中R 5是一价 有机基团,条件是A,R 1,R 2,R 4和R 5都是 不会将假活性聚合物质子化的取代基。 此外,官能化聚合物和含有聚合物的可硫化组合物。

    Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blends
    9.
    发明授权
    Low molecular weight high-cis polybutadienes and their use in high molecular weight-low molecular weight high-cis polybutadiene blends 有权
    低分子量高顺式聚丁二烯及其在高分子量低分子量高顺式聚丁二烯共混物中的应用

    公开(公告)号:US06437205B1

    公开(公告)日:2002-08-20

    申请号:US09600150

    申请日:2000-07-10

    IPC分类号: C10L116

    摘要: A process for polymerizing 1,3-butadiene into a low molecular weight high-cis polybutadiene is described using a catalyst system comprising: (a) a neodymium-containing compound, (b) an aluminoxane or a trialkyl aluminum compound, (c) an organoaluminum hydride, and (d) a halogen source. A blend of a high molecular weight high-cis polybutadiene and the low molecular weight high-cis polybutadiene is also disclosed for use in pneumatic tire treads. Desirably both the high and the low molecular weight polymers have high cis contents, with the low molecular weight polymer being at least 70 percent cis and the high molecular weight polymer being at least 92 percent cis. Desirably both polymers are made with a neodymium catalyst system. The blends provide a balance of properties including good snow traction, wet traction, and rolling resistance while providing a balance of good physical properties including tension at break, modulus etc.

    摘要翻译: 使用催化剂体系描述了将1,3-丁二烯聚合成低分子量高顺式聚丁二烯的方法,该催化剂体系包含:(a)含钕化合物,(b)铝氧烷或三烷基铝化合物,(c) 有机铝氢化物,(d)卤素源。 还公开了高分子量高顺式聚丁二烯和低分子量高顺式聚丁二烯的共混物用于充气轮胎胎面。 高分子量聚合物和低分子量聚合物理想地具有高顺式含量,低分子量聚合物为顺式至少70%,高分子量聚合物为顺式至少92%。 理想地,两种聚合物都是用钕催化剂体系制成的。 混合物提供了平衡的性能,包括良好的积雪牵引力,湿牵引力和滚动阻力,同时提供良好的物理性能,包括断裂张力,模量等的平衡。