Hydrocarbon polymer modifiers
    5.
    发明授权
    Hydrocarbon polymer modifiers 有权
    烃类聚合物改性剂

    公开(公告)号:US08735500B2

    公开(公告)日:2014-05-27

    申请号:US13821715

    申请日:2011-08-17

    IPC分类号: C08L45/00 C08F232/08 C08F4/14

    摘要: A hydrocarbon polymer modifier (HPM) having high softening point and high aromaticity, is an interpolymer of (i) a piperylene component; (ii) an aromatic component; and (iii) a cyclic pentadiene component comprising a dicyclopentadiene fraction (DCPD fraction) and a dimethylcyclopentadiene fraction (MCPD fraction), wherein a weight ratio of the MCPD fraction to the DCPD fraction is from 0.8 to 20, and wherein the MCPD fraction is at least 20 wt % of the cyclic pentadiene component. In a method, the proportions of (i), (ii), (iii), and an optional amylene component are adjusted to control aromaticity, softening point and Mz of the HPM. An elastomeric composition incorporates the HPM.

    摘要翻译: 具有高软化点和高芳香性的烃聚合物改性剂(HPM)是(i)戊间二烯成分的互聚物; (ii)芳族成分; 和(iii)包含二环戊二烯馏分(DCPD馏分)和二甲基环戊二烯馏分(MCPD馏分)的环状戊二烯组分,其中MCPD馏分与DCPD馏分的重量比为0.8至20,并且其中MCPD馏分为 至少20重量%的环戊二烯组分。 在一种方法中,调节(i),(ii),(iii)和任选的Amylene组分的比例以控制HPM的芳香度,软化点和Mz。 弹性体组合物包含HPM。

    Entanglement-inhibited macromolecules
    8.
    发明授权
    Entanglement-inhibited macromolecules 失效
    免疫抑制大分子

    公开(公告)号:US5206303A

    公开(公告)日:1993-04-27

    申请号:US634846

    申请日:1990-12-27

    摘要: A grafted and/or functionalized macromolecule comprises entanglement-inhibited architecture wherein the polymer exhibits reduced melt viscosity. In one embodiment, the macromolecule comprises a polymer of an isoolefin having about 4 to about 7 carbon atom and a para-alkylstyrene, wherein a grafted macromonomer such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution is attached to the para-alkyl group of the para-alkylstyrene such that entanglement of adjacent chains in the melt are inhibited. In addition to distributed macromonomer grafts, other functionality may be attached to the para-alkyl group of the para-alkylstyrene to introduce other desirable properties such as radiation curability. In another embodiment the macromolecule comprises a polymer of one or more simple olefinic monomers wherein a macromolecule is attached to pendent functionality and/or copolymerized into the polymer backbone. A particularly preferred macromonomer comprises a terminal norbornene functional group.

    摘要翻译: 接枝和/或官能化的大分子包括缠结抑制结构,其中聚合物表现出降低的熔体粘度。 在一个实施方案中,大分子包含具有约4至约7个碳原子的异烯烃聚合物和对 - 烷基苯乙烯,其中接枝的大分子单体如具有非常窄的分子量分布的末端官能化的聚苯乙烯基链连接到对位烷基 一组对位烷基苯乙烯,使得熔体中相邻链的缠结被抑制。 除了分散的大分子单体移植物之外,其它官能团可以连接到对烷基苯乙烯的对位烷基上以引入其它期望的性质,例如辐射固化性。 在另一个实施方案中,大分子包含一种或多种简单烯烃单体的聚合物,其中大分子连接至侧链官能团和/或共聚到聚合物主链中。 特别优选的大分子单体包括末端降冰片烯官能团。

    Ion-exchange reactions for polymeric alkali metal carboxylates
    9.
    发明授权
    Ion-exchange reactions for polymeric alkali metal carboxylates 失效
    聚合碱金属羧酸盐的离子交换反应

    公开(公告)号:US4950721A

    公开(公告)日:1990-08-21

    申请号:US416412

    申请日:1989-10-03

    IPC分类号: C08F2/00 C08F8/44

    CPC分类号: C08F8/44

    摘要: A method for preparing functionalized polymers formed by anionic polymerization, e.g., polystyrene, polyisoprene, etc., generally comprising the steps of conducting anionic polymerization, contacting the polymer so formed with CO.sub.2 in the presence of a polar diluent, then conducting an ion-exchange reaction between the carbonated polymer product and a hydrocarbon soluble salt.

    摘要翻译: 制备通过阴离子聚合形成的官能化聚合物的方法,例如聚苯乙烯,聚异戊二烯等,通常包括进行阴离子聚合的步骤,在极性稀释剂的存在下使与CO 2形成的聚合物接触,然后进行离子交换 碳酸化聚合物产物和烃可溶性盐之间的反应。