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14 条记录 (耗时 0.019 秒)

    Method for preparing asymmetric radial copolymers having four first arms and two second arms
    1.
    发明授权
    Method for preparing asymmetric radial copolymers having four first arms and two second arms 失效
    制备具有四个第一臂和两个第二臂的不对称径向共聚物的方法

    公开(公告)号：US5369175A

    公开(公告)日：1994-11-29

    申请号：US149598

    申请日：1993-11-09

    申请人： Ronald J. Hoximeier ,  Bridget A. Spence ,  Steven S. Chin

    发明人： Ronald J. Hoximeier ,  Bridget A. Spence ,  Steven S. Chin

    IPC分类号： C08F293/00 ,  C08C19/44 ,  C08F297/02 ,  C08G81/02 ,  C08L53/02 ,  C08F297/04

    CPC分类号： C08L53/02 ,  C08C19/44 ,  C08G81/022

    摘要： A method for preparing asymmetric radial polymers wherein the different polymeric arms are contacted sequentially with a coupling agent. The method narrows the relative arm distribution of the several asymmetric radial polymers produced and significantly increases the amount of total product having the desired ratio of polymeric arms. Any coupling agent known in the prior art to be useful in the production of asymmetric radial polymers may be used in the method of this invention but coupling agents having from three to about twelve functional groups are most effective.

    摘要翻译： 一种制备不对称辐射聚合物的方法，其中不同的聚合物臂与偶联剂依次接触。 该方法缩小了所生产的几种不对称径向聚合物的相对臂分布，并显着增加了具有所需聚合物臂比例的总产物的量。 现有技术中已知的可用于生产不对称径向聚合物的任何偶联剂可用于本发明的方法中，但是具有三个至约十二个官能团的偶联剂也是最有效的。

    Method for producing statistically coupled asymmetric radial polymers
    3.
    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。

    Low viscosity adhesive compositions containing asymmetric radial polymers
    8.
    发明授权
    Low viscosity adhesive compositions containing asymmetric radial polymers 失效
    含有不对称径向聚合物的低粘度粘合剂组合物

    公开(公告)号：US5554690A

    公开(公告)日：1996-09-10

    申请号：US489529

    申请日：1995-06-12

    申请人： Bridget A. Spence ,  Jeffrey G. Southwick ,  Steven S. Chin

    发明人： Bridget A. Spence ,  Jeffrey G. Southwick ,  Steven S. Chin

    IPC分类号： C08F36/04 ,  C08F297/02 ,  C08F297/04 ,  C09J153/00 ,  C09J153/02

    CPC分类号： C08F297/044 ,  C09J153/02

    摘要： A low viscosity adhesive composition which comprises:(a) an asymmetric radial block copolymer of a vinyl aromatic hydrocarbon and at least one conjugated diene having from 3 to 6 polymer arms, which:(i) contains from 33 to 85% by weight of polyvinyl aromatic hydrocarbon block/polydiene block copolymer arms and the balance polydiene homopolymer arms,(ii) has vinyl aromatic hydrocarbon blocks with block molecular weights of from 8000 to 30,000,(iii) has conjugated diene blocks in the copolymer arms with a molecular weight of at least 6000, and(iv) has a polyvinyl aromatic hydrocarbon content of from 10 to 40% by weight; and(b) from 20 to 400 parts per hundred parts of polymer of a tackifying resin.The invention also encompasses the polymers used in the adhesive.

    摘要翻译： 一种低粘度粘合剂组合物，其包含：（a）乙烯基芳族烃和至少一种具有3至6个聚合物臂的共轭二烯的不对称的径向嵌段共聚物，其：（i）含有33至85重量％的聚乙烯 芳族烃嵌段/聚二烯嵌段共聚物臂和余量聚二烯均聚物臂，（ii）具有阻挡分子量为8000至30,000的乙烯基芳族烃嵌段，（iii）共聚物臂中共轭二烯嵌段在分子量为 至少6000，和（iv）具有10至40重量％的聚乙烯基芳族烃含量; 和（b）每100份增粘树脂聚合物为20-400份。 本发明还包括在粘合剂中使用的聚合物。

    Method for producing asymmetric radial polymers
    10.
    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。