Unhydrogenated block copolymer compositions
    1.
    发明授权
    Unhydrogenated block copolymer compositions 有权
    未氢化的嵌段共聚物组合物

    公开(公告)号:US07858693B2

    公开(公告)日:2010-12-28

    申请号:US11388628

    申请日:2006-03-24

    IPC分类号: C08L9/06 C08L53/02

    摘要: The present invention relates to novel compositions comprising (a) anionic block copolymers having at least two blocks of a mono alkenyl arene and at least one block of a conjugated diene and mono alkenyl arene having a specific arrangement of the monomers in the copolymer block, and (b) tailored softening modifiers have a particular structure that results in a surprising improvement in properties for the composition. Also included are processes for the manufacturing such novel compositions and various end-uses and applications for such compositions.

    摘要翻译: 本发明涉及新型组合物,其包含(a)阴离子嵌段共聚物,其具有至少两个单烯基芳烃嵌段和至少一个共轭二烯嵌段和共聚物嵌段中单体具体排列的单烯基芳烃;以及 (b)定制的软化改性剂具有导致组合物的性能惊人改善的特定结构。 还包括用于制造这种新型组合物和各种最终用途和用于这种组合物的方法。

    Low viscosity terminally functionalized isoprene polymers
    10.
    发明授权
    Low viscosity terminally functionalized isoprene polymers 失效
    低粘度的末端官能化异戊二烯聚合物

    公开(公告)号:US5376745A

    公开(公告)日:1994-12-27

    申请号:US160341

    申请日:1993-12-01

    CPC分类号: C08F136/06

    摘要: The anionic polymerization of isoprene with monolithium initiators and functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--O--A'--Li wherein R.sup.1, R.sup.2, and R.sup.3 are preferably alkyl, alkoxy, aryl, or alkaryl groups having from 1 to 10 carbon atoms, and A' is preferably a branched or straight chain bridging group having at least 2 carbon atoms produces unsaturated and hydrogenated isoprene polymers having high 1,4-addition of the isoprene, from about one to two terminal functional groups per molecule, and low viscosity.

    摘要翻译: 具有单键引发剂的异戊二烯和具有结构R1R2R3Si-O-A'-Li的官能化引发剂的异戊二烯的阴离子聚合,其中R1,R2和R3优选为具有1至10个碳原子的烷基,烷氧基,芳基或烷芳基,A 优选具有至少2个碳原子的支链或直链桥连基产生具有异戊二烯高1,4-加成,每分子约1至2个末端官能团和低粘度的不饱和和氢化异戊二烯聚合物。