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14 条记录 (耗时 0.04 秒)

    Method for producing asymmetric radial polymers
    4.
    发明授权
    Method for producing asymmetric radial polymers 失效
    不对称径向聚合物的制备方法

    公开(公告)号：US5552493A

    公开(公告)日：1996-09-03

    申请号：US453039

    申请日：1995-05-30

    申请人： Bridget A. Spence ,  Ronald J. Hoxmeier ,  Glenn R. Himes

    发明人： Bridget A. Spence ,  Ronald J. Hoxmeier ,  Glenn R. Himes

    IPC分类号： C08F297/02 ,  C08F297/04 ,  C08G81/02

    CPC分类号： C08G81/022 ,  C08F297/044

    摘要： The present invention is a process for producing predominately four-armed asymmetric radial block copolymers which contain predominately, on average, two arms which are copolymers of at least one conjugated diene and at least one vinyl aromatic hydrocarbon and two conjugated diene homopolymer or copolymer arms, said process comprising:(a) anionically polymerizing at least one conjugated diene monomer and at least one vinylaromatic hydrocarbon monomer to form a set of living polymer arms,(b) anionically polymerizing at least one conjugated diene monomer to form another set of living polymer arms,(c) coupling the one set of living polymer arms with a coupling agent which is selected from the group consisting of tetramethoxysilane and .gamma.-glycidoxypropyltrimethoxysilane,(d) substantially completing the coupling reaction while leaving, on average, two unreacted coupling sites on the coupling agent,(e) adding the other set of living polymer arms to the product of d) and coupling the other set of living polymer arms to the first coupled set of polymer arms, and(f) optionally, hydrogenating the coupled polymer, either partially or fully.

    摘要翻译： 本发明是主要生产四臂不对称径向嵌段共聚物的方法，其主要含有平均两个臂，它们是至少一种共轭二烯和至少一种乙烯基芳族烃与两个共轭二烯均聚物或共聚物臂的共聚物， 所述方法包括：（a）阴离子聚合至少一种共轭二烯单体和至少一种乙烯基芳族烃单体以形成一组活性聚合物臂，（b）阴离子聚合至少一种共轭二烯单体以形成另一组活性聚合物臂 （c）将一组活性聚合物臂与选自四甲氧基硅烷和γ-缩水甘油氧基丙基三甲氧基硅烷的偶联剂偶合，（d）基本上完成偶联反应，平均离开两个未反应的偶联位点 偶联剂，（e）将另一组活性聚合物臂加入到d）和偶联剂的产物中 其它一组活性聚合物臂与第一组耦合的聚合物臂，和（f）任选地，部分或全部氢化偶联的聚合物。

    Method for producing statistically coupled asymmetric radial polymers
    5.
    发明授权
    Method for producing statistically coupled asymmetric radial polymers 失效
    统计耦合的不对称径向聚合物的制备方法

    公开(公告)号：US5446093A

    公开(公告)日：1995-08-29

    申请号：US150929

    申请日：1993-11-10

    申请人： Ronald J. Hoxmeier ,  Bridget A. Spence ,  Steven S. Chin ,  Michael A. Masse

    发明人： Ronald J. Hoxmeier ,  Bridget A. Spence ,  Steven S. Chin ,  Michael A. Masse

    IPC分类号： C08G81/02 ,  C08L53/02 ,  C08F297/04

    CPC分类号： C08G81/022

    摘要： A process is disclosed for producing six-armed and eight-armed asymmetric radial block copolymers. The process comprises anionically polymerizing a diene and/or a vinyl aromatic hydrocarbon to create living polydiene and/or vinyl aromatic hydrocarbon arms, sequentially anionically polymerizing a vinyl aromatic hydrocarbon and a diene to create living block copolymer arms and coupling the two sets of arms together in one step with a coupling agent that will couple six or eight arms, wherein the molar ratio of the vinyl aromatic hydrocarbon-diene arms to the polydiene arms is sufficient to produce a statistical blend with less than 5 weight percent homopolydiene.

    摘要翻译： 公开了一种用于生产六臂和八臂不对称径向嵌段共聚物的方法。 该方法包括阴离子聚合二烯和/或乙烯基芳烃以产生活性聚二烯和/或乙烯基芳族烃臂，依次阴离子聚合乙烯基芳族烃和二烯以产生活性嵌段共聚物臂并将两组臂结合在一起 在一步中与偶联剂可以连接6或8个臂，其中乙烯基芳族烃 - 二烯臂与聚二烯臂的摩尔比足以产生具有小于5重量％均聚二烯的统计学共混物。

    Process for making graft block copolymers by growing anionic polymer chains from functionalized polyolefin backbones
    6.
    发明授权
    Process for making graft block copolymers by growing anionic polymer chains from functionalized polyolefin backbones 失效
    通过从官能化聚烯烃骨架生长阴离子聚合物链来制备接枝嵌段共聚物的方法

    公开(公告)号：US5543458A

    公开(公告)日：1996-08-06

    申请号：US381242

    申请日：1995-01-31

    申请人： Ronald J. Hoxmeier ,  Robert C. Job ,  Bridget A. Spence ,  Donn A. DuBois

    发明人： Ronald J. Hoxmeier ,  Robert C. Job ,  Bridget A. Spence ,  Donn A. DuBois

    IPC分类号： C08F8/42 ,  C08F255/00 ,  C08F275/00

    CPC分类号： C08F275/00 ,  C08F255/00 ,  C08F8/42

    摘要： A graft block copolymer is comprised of a completely saturated olefinic backbone with pendant anionic polymer side chains. The polymer is produced by copolymerizing an .alpha.-olefin with a monomer which contains a functional group which can be metallated so an anionic monomer can be polymerized therefrom, metallating the copolymer by reaction with metal alkyl or aryl compound and a metallation activator, and growing anionic polymer side chains from the copolymer backbone by reacting an anionically polymerized monomer with the metallated copolymer.

    摘要翻译： 接枝嵌段共聚物由具有侧阴离子聚合物侧链的完全饱和的烯属主链组成。 该聚合物是通过使α-烯烃与含有可被金属化的官能团的单体共聚制备的，因此阴离子单体可从其中聚合，通过与金属烷基或芳基化合物和金属化活化剂的反应使共聚物金属化，并且阴离子生长 聚合物侧链通过使阴离子聚合的单体与金属化共聚物反应而由共聚物主链形成。

    Method for producing asymmetric radial polymers
    7.
    发明授权
    Method for producing asymmetric radial polymers 失效
    不对称径向聚合物的制备方法

    公开(公告)号：US5447995A

    公开(公告)日：1995-09-05

    申请号：US250409

    申请日：1994-05-27

    申请人： Ronald J. Hoxmeier ,  Bridget A. Spence

    发明人： Ronald J. Hoxmeier ,  Bridget A. Spence

    IPC分类号： C08F297/02 ,  C08F297/04 ,  C08G81/02

    CPC分类号： C08F297/044 ,  C08F297/026 ,  C08F297/046

    摘要： A method for producing asymmetric radial polymers which comprises anionically polymerizing an anionically polymerizable monomer to form a first set of living polymer arms, coupling the first set of living polymer arms with a silicon-based coupling agent, substantially completing the coupling reaction, anionically polymerizing, in the presence of the coupled first set of polymer arms, a different anionically polymerizable monomer(s) to form a second set of living polymer arms, and adding a coupling activator and coupling the second set of living polymer arms to the coupled first set of polymer arms to form the asymmetric radial polymer.

    摘要翻译： 一种制备不对称放射状聚合物的方法，其包括阴离子聚合阴离子聚合单体以形成第一组活性聚合物臂，将第一组活性聚合物臂与硅基偶联剂偶联，基本上完成偶联反应，阴离子聚合， 在耦合的第一组聚合物臂的存在下，形成不同的阴离子可聚合单体以形成第二组活性聚合物臂，并加入偶联活化剂并将第二组活性聚合物臂与第一组聚合物臂 聚合物臂形成不对称的径向聚合物。