利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

91 条记录 (耗时 0.042 秒)

    High Temperature Block Copolymers and Process for Making Same
    71.
    发明申请
    High Temperature Block Copolymers and Process for Making Same 有权
    高温嵌段共聚物及其制备方法

    公开(公告)号：US20080039584A1

    公开(公告)日：2008-02-14

    申请号：US11688448

    申请日：2007-03-20

    申请人： Robert C. Bening ,  Carl L. Willis ,  Xavier Muyldermans

    发明人： Robert C. Bening ,  Carl L. Willis ,  Xavier Muyldermans

    IPC分类号： C08L53/00

    CPC分类号： C08F297/04 ,  C08F297/044 ,  C08L53/02 ,  C08L53/025 ,  Y10S525/94 ,  C08L2666/04

    摘要： A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene and have Tg values in the range of 120 to 140° C. The copolymerization process, which is conducted at 35 to 60° C. and relatively high solids contents and with continuous addition of styrene, results in very high conversions of the alpha-methyl-styrene. Selectively hydrogenated block copolymers having high glassy block Tg values are also disclosed and claimed as well as high service temperature elastomeric compositions comprising the block copolymer and an olefin polymer of copolymer.

    摘要翻译： 要求保护含有例如α-甲基 - 苯乙烯/苯乙烯玻璃质嵌段的嵌段共聚物的新方法，其中玻璃状嵌段含有25-50mol％的α-甲基 - 苯乙烯，Tg值在120〜 140℃。在35至60℃和相对较高的固体含量和连续加入苯乙烯时进行的共聚方法导致非常高的α-甲基 - 苯乙烯转化率。 还公开并要求保护具有高玻璃态Tg值的选择性氢化嵌段共聚物以及包含嵌段共聚物和共聚物烯烃聚合物的高使用温度弹性体组合物。

    Conjugated diene polymers and copolymer blocks having high vinyl content prepared using mixed microstructure control agents and process for preparing same
    73.
    发明授权
    Conjugated diene polymers and copolymer blocks having high vinyl content prepared using mixed microstructure control agents and process for preparing same 有权
    使用混合微结构控制剂制备具有高乙烯基含量的共轭二烯聚合物和共聚物嵌段及其制备方法

    公开(公告)号：US07166679B2

    公开(公告)日：2007-01-23

    申请号：US10946878

    申请日：2004-09-22

    申请人： Carl L. Willis ,  David K. Schisla ,  Daniel E. Goodwin

    发明人： Carl L. Willis ,  David K. Schisla ,  Daniel E. Goodwin

    IPC分类号： C08L53/00

    CPC分类号： C08F297/04 ,  C08F36/04 ,  C08F4/48

    摘要： Disclosed is a process for preparing polymers and copolymer blocks of conjugated dienes with high amounts of branching, commonly referred to as vinyl content, comprising the use of at least two microstructure control agents. One of the microstructure control agents can be a bulk microstructure control agents such as diethyl ether. The other microstructure control agent is a specific microstructure control agent such as 1,2-diethoxypropane. The use of a bulk and a specific microstructure control agent together can allow for the production of high levels of vinyl content at high polymerization rates without the undesirable affects experienced with either one alone.

    摘要翻译： 公开了一种制备具有大量支化的共轭二烯的聚合物和共聚物嵌段的方法，通常称为乙烯基含量，包括使用至少两种微结构控制剂。 微结构控制剂之一可以是块状微结构控制剂如二乙醚。 其他微结构控制剂是一种特殊的微结构控制剂，如1,2-二乙氧基丙烷。 将本体和特定的微结构控制剂一起使用可以允许在高聚合速率下生产高含量的乙烯基含量，而无需单独使用任何一种所不希望的影响。

    Process for coupling styrenic block copolymers
    76.
    发明授权
    Process for coupling styrenic block copolymers 有权
    偶联苯乙烯嵌段共聚物的方法

    公开(公告)号：US06730745B2

    公开(公告)日：2004-05-04

    申请号：US10257881

    申请日：2003-02-03

    申请人： Robert C. Bening ,  Carl L. Willis

    发明人： Robert C. Bening ,  Carl L. Willis

    IPC分类号： C08F29704

    CPC分类号： C08L53/02 ,  C08F297/023 ,  C08F297/044 ,  C08G81/022 ,  C08L2666/24 ,  C09J153/02

    摘要： Disclosed is a process for coupling styrenic block copolymers comprising admixing vinyl cyclohexene dioxide with a living block copolymer comprising at least one block of polymerized vinyl aromatic hydrocarbon monomers and at least one block of polymerized conjugated diene monomers, at a molar ratio of from 0.40 to 0.60 and carrying out a coupling reaction at a temperature of at least 65° C. to produce a coupled styrenic block copolymer. Also disclosed is a polymer composition comprising at most 30% by weight of a styrenic block copolymer comprising at least one block A of polymerized vinyl aromatic monomer(s) and at least one block B of polymerized conjugated diene(s) and at least 70% by weight of the styrenic block copolymer coupled with vinyl cyclohexene dioxide.

    摘要翻译： 公开了一种偶联苯乙烯嵌段共聚物的方法，其包括将乙烯基环己烯二氧化物与包含至少一个聚合的乙烯基芳族烃单体和至少一个聚合的共轭二烯单体的嵌段的活性嵌段共聚物以摩尔比为0.40-0.60 并在至少65℃的温度下进行偶联反应以产生偶联的苯乙烯嵌段共聚物。 还公开了一种聚合物组合物，其包含至多30重量％的苯乙烯嵌段共聚物，其包含至少一个聚合的乙烯基芳族单体的嵌段A和至少一个聚合的共轭二烯的嵌段B和至少70重量％ 的苯乙烯嵌段共聚物与乙烯基环己烯二氧化物偶联。

    Hydrogenation of polymers having ketone groups
    77.
    发明授权
    Hydrogenation of polymers having ketone groups 失效
    具有酮基的聚合物的氢化

    公开(公告)号：US5521254A

    公开(公告)日：1996-05-28

    申请号：US452189

    申请日：1995-05-25

    申请人： Carl L. Willis

    发明人： Carl L. Willis

    IPC分类号： C08C19/02 ,  C08F8/04 ,  C08F297/04

    CPC分类号： C08C19/02 ,  C08F8/04 ,  Y10S525/94

    摘要： Polymers containing ketone groups such hydroesterified 1,3-butadiene polymers, including styrenic block copolymers, are hydrogenated with a cobalt/aluminum catalyst which substantially converts ketone groups to alcohol groups and improves polymer stability.

    摘要翻译： 含有酮基的聚合物，例如加氢酯化的1,3-丁二烯聚合物，包括苯乙烯嵌段共聚物，用钴/铝催化剂进行氢化，钴/铝催化剂基本上将酮基转化为醇基并提高聚合物的稳定性。

    Thermoplastic elastomers
    78.
    发明授权
    Thermoplastic elastomers 失效
    热塑性弹性体

    公开(公告)号：US5278245A

    公开(公告)日：1994-01-11

    申请号：US957494

    申请日：1992-10-07

    申请人： Donn A. DuBois ,  Carl L. Willis

    发明人： Donn A. DuBois ,  Carl L. Willis

    IPC分类号： C08F297/02 ,  C08F297/04

    CPC分类号： C08F297/048

    摘要： Block copolymers of particular structure comprising blocks of polymerized alkenyl aromatic compound and polymerized conjugated alkadiene, as well as selectively hydrogenated derivatives thereof, are functionalized by the presence of additional polar blocks of polymerized alkyl methacrylate.

    摘要翻译： 包含聚合的链烯基芳族化合物和聚合的共轭二烯嵌段的特定结构的嵌段共聚物以及其选择性氢化的衍生物通过存在其它聚合的甲基丙烯酸烷基酯的极性嵌段官能化。

    Sulfonated block copolymers
    80.
    发明授权
    Sulfonated block copolymers 失效
    磺化嵌段共聚物

    公开(公告)号：US5239010A

    公开(公告)日：1993-08-24

    申请号：US820446

    申请日：1992-01-10

    申请人： Jaroslav G. Balas ,  William P. Gergen ,  Carl L. Willis ,  Lorelle A. Pottick ,  Richard Gelles ,  Robert A. Weiss

    发明人： Jaroslav G. Balas ,  William P. Gergen ,  Carl L. Willis ,  Lorelle A. Pottick ,  Richard Gelles ,  Robert A. Weiss

    IPC分类号： C08F8/36

    CPC分类号： C08F8/36

    摘要： A thermoplastic polymer which possesses excellent mechanical properties at both room and elevated temperatures is obtained by reacting an acyl sulfate with a block copolymer composed of at least one conjugated diene block and one alkenyl arene block. The block copolymer is first selectively hydrogenated and thereafter modified by grafting sulfonic acid functional groups primarily in the alkenyl arene blocks. The mechanical properties may be varied and controlled by varying the degree of functionalization (amount of sulfonation), and the degree of neutralization of the sulfonic acid groups to metal sulfonate salts.

    摘要翻译： 通过使酰基硫酸盐与至少一个共轭二烯嵌段和一个链烯基芳烃嵌段组成的嵌段共聚物反应，得到在室温和高温下具有优异机械性能的热塑性聚合物。 首先将嵌段共聚物选择性氢化，然后通过主要在烯基芳烃嵌段中接枝磺酸官能团进行改性。 可以通过改变官能度（磺化量）和磺酸基与金属磺酸盐的中和度来改变和控制机械性能。