Graft copolymers containing ionomer units
    4.
    发明授权
    Graft copolymers containing ionomer units 失效
    含离聚物单元的接枝共聚物

    公开(公告)号:US6060563A

    公开(公告)日:2000-05-09

    申请号:US862630

    申请日:1997-05-23

    CPC分类号: C08G81/021

    摘要: Graft copolymers having cationic units pendant to the backbone chain are disclosed. These polymers are prepared by reacting a polymer containing halogenated paramethylstyrene units in the chain, e.g., a brominated copolymer of isobutylene and para-methylstyrene, with an anionically polymerized polymer made using an organolithium initiator compound having the formula R.sub.1 R.sub.2 Z R.sub.3 --Li where R.sub.1 and R.sub.2 are alkyl radicals, R.sub.3 is a direct link or an organic radical and Z is nitrogen or phosphorous. Reaction of the anionically polymerized polymer having an R.sub.1 R.sub.2 Z R.sub.3 --end group with the halogenated polymer leads to graft polymers coupled by a quaternary ammonium or phosphonium groups.

    摘要翻译: 公开了具有垂直于主链的阳离子单元的接枝共聚物。 这些聚合物通过使链中含有卤代对甲基苯乙烯单元的聚合物例如异丁烯和对甲基苯乙烯的溴化共聚物与使用具有式R1 R2 Z R3-Li的有机锂引发剂化合物制成的阴离子聚合聚合物反应制备,其中R 1 R2为烷基,R3为直链或有机基团,Z为氮或磷。 具有R1R2Z R3-端基的阴离子聚合聚合物与卤化聚合物的反应导致通过季铵或鏻基团偶联的接枝聚合物。

    Processing olefin copolymers
    5.
    发明授权
    Processing olefin copolymers 有权
    加工烯烃共聚物

    公开(公告)号:US06391998B1

    公开(公告)日:2002-05-21

    申请号:US09943540

    申请日:2001-08-30

    IPC分类号: C08F29900

    摘要: The invention is directed to essentially saturated hydrocarbon polymer composition comprising essentially saturated hydrocarbon polymers having A) a backbone chain, B) a plurality of essentially hydrocarbyl sidechains connected to A), said sidechains each having a number-average molecular weight of from 2500 Daltons to 125,000 Daltons and a MWD by SEC of 1.0-3.5; and having A) a Newtonian limiting viscosity (&eegr;0) at 190° C. at least 50% greater than that of a linear olefinic polymer of the same chemical composition and weight average molecular weight, preferably at least twice as great as that of said linear polymer, B) a ratio of the rubbery plateau modulus at 190° C. to that of a linear polymer of the same chemical composition less than 0.5, preferably

    摘要翻译: 本发明涉及基本上饱和的烃聚合物组合物,其包含基本上饱和的烃聚合物,其具有A)主链,B)与A)连接的多个基本上烃基的侧链,所述侧链的数均分子量为2500道尔顿至 125,000道尔顿和SEC的MWD为1.0-3.5; 并且具有A)在190℃下的牛顿极限粘度(eta0)比具有相同化学组成和重均分子量的线性烯烃聚合物的牛顿极限粘度(eta0)至少大50%,优选至少是所述线性 聚合物,B)190℃下的橡胶平稳度模量与相同化学组成小于0.5,优选<0.3的线性聚合物的比率,C)牛顿极限粘度(η)与绝对值的比率 振荡剪切下的复数粘度值(eta *)在190℃下在100rad / sec下的值至少为5,D)在应变速率1秒-1,190℃下测量的拉伸粘度比 ,时间= 3秒(即3的应变)与在相同温度和时间为2或更大的线性粘弹性预测的时间。 通过阴离子聚合和氢化制备的乙烯 - 丁烯和通过配位聚合制备的乙烯 - 己烯共聚说明了本发明。 本发明聚合物表现出改进的加工特性,因为剪切稀化行为与理想聚合物的剪切变稀行为密切相关,并表现出改进的应变增厚。

    Star polymers and process for the preparation thereof
    7.
    发明授权
    Star polymers and process for the preparation thereof 失效
    星形聚合物及其制备方法

    公开(公告)号:US4108945A

    公开(公告)日:1978-08-22

    申请号:US663541

    申请日:1976-03-03

    CPC分类号: C08G81/022 C08C19/44

    摘要: Disclosed is a series of star polymer products having at least three polymeric arms which radiate from a nucleus having at least two molecules of a linking compound. The polymeric arms may be copolymers of conjugated dienes and monovinyl aromatic compounds and/or homopolymers of either monomer. A novel process for the preparation of the polymer products includes the steps of forming the polymeric arms with an organometallic initiator to form polymers terminated by an active chain end and thereafter forming a nucleus with the simultaneous linking of the active chain ends thereto. The nucleus is formed from at least two molecules of a linking compound each having at least two functional groups.

    摘要翻译: 公开了一系列具有至少三个聚合物臂的星形聚合物产物,其从具有至少两个连接化合物分子的核辐射。 聚合物臂可以是共轭二烯和单乙烯基芳族化合物的共聚物和/或任一单体的均聚物。 用于制备聚合物产品的新方法包括以下步骤:用有机金属引发剂形成聚合物臂,以形成由活性链端封端的聚合物,然后通过将活性链末端同时连接而形成核。 细胞核由至少两个分子具有至少两个官能团的连接化合物形成。

    Disentangled chain telechelic polymers
    9.
    发明授权
    Disentangled chain telechelic polymers 失效
    断开链式遥爪聚合物

    公开(公告)号:US5238634A

    公开(公告)日:1993-08-24

    申请号:US817573

    申请日:1992-01-07

    摘要: The present invention provides a process for producing high elongation elastomers and highly oriented films and fibers from polymers having specific associative groups, such that the end groups on each macromolecule tend to associate with one another after the macromolecules are in a disentangled state, i.e., in the form of a semi-dilute solution. This association is of a force strong enough to prevent the macromolecular chains from slipping past one another and reentangling when the polymer is moderately heated or further concentrated in solution. The association may be manipulated, i.e., is reversible, under a change in parameter such as temperature, pH, polarity of the solvent medium and like parameters. The associated polymer macromolecules can be drawn as a gel from a semi-dilute solution into a highly aligned disentangled polymer to yield shaped articles.

    摘要翻译: 本发明提供了一种用于由具有特定缔合基团的聚合物制备高伸长弹性体和高取向膜和纤维的方法,使得每个高分子上的端基在大分子处于解缠状态之后倾向于相互结合,即,在 半稀释溶液的形式。 该缔合是具有足够强度的力,以防止大分子链彼此滑动并且当聚合物适度加热或进一步在溶液中浓缩时重新连接。 可以在诸如温度,pH,溶剂介质的极性等参数的变化等操作,即可逆的关联。 相关联的聚合物大分子可以作为凝胶从半稀释溶液中拉伸成高度对准的解缠结聚合物以产生成型制品。

    Functionalized poly (ethylene-co-syndiotactic propylene)
    10.
    发明授权
    Functionalized poly (ethylene-co-syndiotactic propylene) 失效
    官能化聚(乙烯 - 共间同立构丙烯)

    公开(公告)号:US07022774B2

    公开(公告)日:2006-04-04

    申请号:US10921207

    申请日:2004-08-19

    IPC分类号: C08F36/04 C08L23/14 C08L23/16

    摘要: Poly(ethylene-co-syndiotactic propylene) functionalized with group(s), that enable crosslinking, e.g., vinyl or anhydride group(s), in admixture with crosslinking agent and filler is subjected to crosslinking reaction to provide filled copolymer. The presence of propylene in syndiotactic sequences provides lower entanglement molecular weight compared to other propylene placement and therefore allows more filler to be present than for other propylene placement. Crosslinking provides filled materials with good elastomeric properties.

    摘要翻译: 通过与交联剂和填料的混合使得能够与乙烯基或酸酐基团交联的基团官能化的聚(乙烯 - 共间同立构丙烯)进行交联反应以提供填充的共聚物。 间同立构序列中丙烯的存在与其他丙烯放置相比提供较低的缠结分子量,因此与其它丙烯放置相比,允许存在更多的填料。 交联提供具有良好弹性体性能的填充材料。