Block copolymer grafting process
    1.
    发明授权
    Block copolymer grafting process 失效
    嵌段共聚物接枝过程

    公开(公告)号:US4960831A

    公开(公告)日:1990-10-02

    申请号:US398298

    申请日:1989-08-24

    IPC分类号: C08F8/00

    CPC分类号: C08F8/00

    摘要: Elastomeric polymers comprising at least one alkali metal atom are modified by incorporating at least one group capable of sterically hindering coupling reactions which frequently occur when functional groups are subsequently incorporated into such polymers. In general, the group capable of sterically hindering coupling reactions may be incorporated by reacting the elastomeric polymer comprising at least one alkali metal atom with a compound containing a group capable of reacting with the elastomeric polymer at one end and at least one pendant group larger than hydrogen at the other. Groups that will react with elastomeric polymers comprising at least one alkali-metal atom are of course, well known, in the art, and include groups containing sulfur, oxygen, nitrogen and the like and ethylenically and acetylenically unsaturated groups. Compounds containing terminal ethylenically unsaturated groups are particularly useful in preparing the modified elastomeric polymers of this invention. Terminal groups capable of sterically hindering coupling reactions, generally, include all groups larger than hydrogen. Hydrocarbon groups are, however, particularly useful since these generally do not alter the properties which are characteristic of the elastomeric polymers. Aromatic groups containing at least 6 carbon atoms or cyclic hydrocarbon groups containing at least 5 carbon atoms are particularly effective. 1,1-diphenyl ethylene is particularly preferred in the present invention. Elastomeric polymers which have been modified in accordance with this invention may then be functionalized with less risk of undesirable coupling.

    摘要翻译: 包含至少一个碱金属原子的弹性体聚合物通过引入至少一个能够空间阻碍偶联反应的基团而被修饰,当随后将官能团引入到这些聚合物中时,它们经常发生。 通常,能够空间阻碍偶联反应的基团可以通过使包含至少一个碱金属原子的弹性体聚合物与含有能够在一端与弹性体聚合物反应的基团和至少一个大于 另一方面是氢气。 与本领域技术人员众所周知的将包含至少一个碱金属原子的弹性体聚合物反应的基团包括含有硫,氧,氮等的烯基和炔属不饱和基团。 含有末端烯键式不饱和基团的化合物特别适用于制备本发明的改性弹性体聚合物。 能够空间阻碍偶联反应的末端基团通常包括大于氢的所有基团。 然而,烃基是特别有用的,因为它们通常不改变弹性体聚合物特性的性质。 含有至少6个碳原子的芳族基团或含有至少5个碳原子的环状烃基是特别有效的。 在本发明中特别优选1,1-二苯基乙烯。 然后可以将具有根据本发明改性的弹性体聚合物功能化,具有较少的不期望的偶联的风险。

    Unhydrogenated block copolymer compositions
    2.
    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。

    Terminally functionalized polymers produced using protected functional
initiators
    5.
    发明授权
    Terminally functionalized polymers produced using protected functional initiators 失效
    使用保护的官能引发剂制备终端官能化聚合物

    公开(公告)号:US5612435A

    公开(公告)日:1997-03-18

    申请号:US539467

    申请日:1995-10-05

    CPC分类号: C08F4/48 C07F7/1864 C08F36/06

    摘要: The anionic polymerization of unsaturated monomers with functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--O--A'--Li is improved by selecting A' from the structures --CH.sub.2 --CH.sub.2 --CH.sub.2 -- (1,3-propyl), --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 -- (2-methyl-1,3-propyl), --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --(2,2-dimethyl-1,3-propyl), or --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,8-octyl). This narrow class of polymerization initiators operate at surprisingly higher polymerization temperatures with surprisingly lower amounts of dead initiator than similar initiators wherein A' is --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,4-butyl), --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,5-pentyl), or --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,6-hexyl).

    摘要翻译: 通过从结构-CH 2 -CH 2 -CH 2 - (1,3-丙基),-CH 2 -CH(CH 3)2中选择A'来改善不饱和单体与具有结构R1R2R3Si-O-A'-Li的官能化引发剂的阴离子聚合 )-CH 2 - (2-甲基-1,3-丙基),-CH 2 -C(CH 3)2 -CH 2 - (2,2-二甲基-1,3-丙基)或-CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 - (1,8-辛基)。 这种窄类聚合引发剂在令人惊奇的更高的聚合温度下操作,其中A'是-CH 2 -CH 2 -CH 2 - (1-丁基),-CH 2 -CH 2 -CH 2 - CH 2 -CH 2 - (1,5-戊基)或-CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 - (1,6-己基)。

    Protected functional initiators for making terminally functionalized
polymers
    8.
    发明授权
    Protected functional initiators for making terminally functionalized polymers 失效
    用于制备末端官能化聚合物的受保护的官能引发剂

    公开(公告)号:US5416168A

    公开(公告)日:1995-05-16

    申请号:US220804

    申请日:1994-03-31

    CPC分类号: C08F36/04 C07F7/1864 C08F4/48

    摘要: The anionic polymerization of unsaturated monomers with functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--O--A'--Li is improved when each R is methyl and A' is --CH.sub.2 --C.sub.6 H.sub.10 --CH.sub.2 -- or --CH.sub.2 --CR'R"--CH.sub.2 -- wherein R' is a linear alkyl having from 1 to 10 carbon atoms and R" is hydrogen or a linear alkyl having from 1 to 10 carbon atoms. This initiator provides process and product advantages over all other known initiators of the same type.

    摘要翻译: 当R 1为甲基且A'为-CH 2 -C 6 H 10 -CH 2 - 或-CH 2 -CR'R“-CH 2 - (CH 3))时,不饱和单体与具有结构R1R2R3Si-O-A'-Li结构的官能化引发剂的阴离子聚合得到改善, 其中R'是具有1至10个碳原子的直链烷基,R“是氢或具有1至10个碳原子的直链烷基。 该起始物相对于相同类型的所有其它已知的引发剂提供了方法和产物优点。

    Neutralization of polymeric acid sites
    10.
    发明授权
    Neutralization of polymeric acid sites 失效
    聚合酸性中心的中和

    公开(公告)号:US5003012A

    公开(公告)日:1991-03-26

    申请号:US540397

    申请日:1990-06-18

    IPC分类号: C08F8/44

    CPC分类号: C08F8/44 Y10S526/943

    摘要: The present invention concerns an improved process for producing an ionomer from an acid group containing polymer. Production of the ionomer requires neutralization of an acid functionality or reaction of anhydride functional groups with a metal ion source to produce a salt. It has been found that metal hydrocarbyls or metal hydrides can be used as the source of metal ions for neutralizing the acid or anhydride functionalities. The reaction can occur in a solvent or in a melt, but is most preferably performed in a solvent.

    摘要翻译: 本发明涉及一种从含酸基聚合物制备离聚物的改进方法。 离聚物的生产需要中和酸官能团或酸酐官能团与金属离子源的反应以产生盐。 已经发现,可以使用金属烃基或金属氢化物作为中和酸或酸酐官能团的金属离子源。 反应可以在溶剂或熔体中进行,但最优选在溶剂中进行。