Removal of hydrogenation catalyst from polymer solutions by catalyzed
precipitation
    1.
    发明授权
    Removal of hydrogenation catalyst from polymer solutions by catalyzed precipitation 失效
    通过催化降解从聚合物溶液中除去氢化催化剂

    公开(公告)号:US5212285A

    公开(公告)日:1993-05-18

    申请号:US537738

    申请日:1990-06-14

    IPC分类号: C08F6/08 C08C2/04 C08F6/00

    CPC分类号: C08C2/04

    摘要: A process is provided comprising the steps of contacting a Group VIII metal hydrogenation catalyst residue containing polymer solution with a chelating resin, the chelating resin comprising iminodiacetate ions, and recovering a polymer solution comprising less than 5 ppm by weight, based on the solution, of the hydrogenation catalyst residue metal. In a preferred embodiment, the chelating resin is contacted with the hydrogenation catalyst residue containing polymer solution by mixing particles of the chelating resin with the hydrogenation catalyst residue containing polymer solution under agitation, and the polymer solution containing less than 5 ppm of hydrogenation catalyst metals is recovered from the chelating resin and resulting precipitated hydrogenation catalyst residues by filtration.

    Removal of nickel catalyst from polymer solutions by water addition and
centrifugation
    2.
    依法登记的发明
    Removal of nickel catalyst from polymer solutions by water addition and centrifugation 失效
    通过水添加和离心从聚合物溶液中去除镍催化剂

    公开(公告)号:USH1303H

    公开(公告)日:1994-04-05

    申请号:US527970

    申请日:1990-05-24

    IPC分类号: C08C2/04 C08F6/02 C08F6/08

    CPC分类号: C08F6/02 C08C2/04

    摘要: A process is provided comprising the steps of contacting a Group VIII metal hydrogenation catalyst residue containing polymer solution with from about 2 to about 50 parts by weight water based on 100 parts by weight of polymer solution, centrifuging the polymer from metal containing particles with a centrifugal force such that the centrifugal force times the time duration of centrifugation divided by the viscosity of the polymer solution equals or exceeds about 50 G-minutes/cp, and recovering a polymer solution comprising less than 10 ppm by weight, based on the polymer, of the Group VIII metal.

    摘要翻译: 提供了一种方法,其包括以下步骤:基于100重量份的聚合物溶液使含有聚合物溶液的第VIII族金属加氢催化剂残余物与约2-约50重量份的水接触,用离心机从含金属的颗粒中离心分离 使得离心力乘以离心时间除以聚合物溶液的粘度等于或超过约50G分钟/厘泊,并回收包含基于聚合物的小于10重量ppm的聚合物溶液, 第VIII族金属。

    Hydroxyl functional derivatives of epoxidized diene block copolymers and
process for making them (II)
    3.
    发明授权
    Hydroxyl functional derivatives of epoxidized diene block copolymers and process for making them (II) 失效
    环氧二烯嵌段共聚物的羟基官能衍生物及其制备方法(II)

    公开(公告)号:US5356970A

    公开(公告)日:1994-10-18

    申请号:US217397

    申请日:1994-03-24

    摘要: A process for making polymers of conjugated dienes which contain hydroxyl groups in the diene blocks which comprises(a) making a precursor polymer by polymerizing at least one conjugated diene which leaves 1,2 disubstituted, 1,1 disubstituted, 1,1,2 trisubstituted or tetrasubstituted olefinic unsaturation in the polymer,(b) optionally partially hydrogenating said precursor polymer,(c) epoxidizing said precursor polymer such that epoxy groups form at said substituted sites and the amount of epoxy functionality in the polymer is from 0.1 to 5 Meq/g polymer, and(d) reacting the epoxidized polymer with an alcohol solution of hydrochloric acid.A diene polymer containing 0.1 to 10 Meq/g polymer of hydroxyl group and comprised of alcohol units of the formula ##STR1## where R.sub.1 and R.sub.2 are hydrogen or alkyl radicals and X and X' are either --OH or --Cl and at least one of them is --OH.

    摘要翻译: 一种在二烯嵌段中含有羟基的共轭二烯的聚合物的方法,其包括(a)通过聚合至少一种共轭二烯制备前体聚合物,所述共轭二烯离开1,2-二取代的1,1,1-二取代的1,1,2三取代 或聚合物中的四取代的烯属不饱和键,(b)任选地部分氢化所述前体聚合物,(c)使所述前体聚合物环氧化,使得环氧基在所述取代部位形成,聚合物中环氧官能度的量为0.1-5Meq / g聚合物,和(d)使环氧化聚合物与盐酸的醇溶液反应。 含有0.1〜10Meq / g羟基的二烯聚合物,其由式(III)或式(Ia)的醇单元组成,其中R 1和R 2为氢或烷基,X和X'为-OH或-Cl 并且其中至少一个是-OH。

    Selective hydrogenation of conjugation diolefin polymers with rare earth
catalysts
    5.
    发明授权
    Selective hydrogenation of conjugation diolefin polymers with rare earth catalysts 失效
    用稀土催化剂选择性氢化共轭二烯烃聚合物

    公开(公告)号:US5177155A

    公开(公告)日:1993-01-05

    申请号:US699028

    申请日:1991-05-13

    IPC分类号: C08C19/02 C08F8/04

    CPC分类号: C08C19/02 C08F8/04

    摘要: This invention provides a catalyst and a process for the hydrogenation of conjugated diolefin polymers which first involves the polymerization or copolymerization of such monomers with an organo alkali metal polymerization initiator in a suitable solvent thereby creating a living polymer. The living polymer can be terminated by the addition of hydrogen. Finally, selective hydrogenation of the unsaturable double bonds in the conjugated diolefin units of the terminated polymer is carried out in the presence of an initiator and at least one rare earth compound of the formula*Cp.sub. MRwhere *Cp is pentamethylcyclopentadiene, M is a rare earth element and R is alkyl, aryl, aralkyl or hydrogen.

    摘要翻译: 本发明提供了一种用于共轭二烯烃聚合物的氢化的催化剂和方法,其首先涉及这种单体与有机碱金属聚合引发剂在合适的溶剂中的聚合或共聚,从而产生活性聚合物。 活性聚合物可以通过加入氢来终止。 最后,封端聚合物的共轭二烯烃单元中的不饱和双键的选择性氢化在引发剂和至少一种式* CpMR的稀土化合物的存在下进行,其中* Cp是五甲基环戊二烯,M是稀土 元素,R是烷基,芳基,芳烷基或氢。

    Selective partial hydrogenation of conjugated diolefin polymers
    8.
    发明授权
    Selective partial hydrogenation of conjugated diolefin polymers 失效
    共轭二烯烃聚合物的选择性部分氢化

    公开(公告)号:US5242986A

    公开(公告)日:1993-09-07

    申请号:US927904

    申请日:1992-08-10

    CPC分类号: C08F8/04 C08C19/02

    摘要: This is a process for the partial hydrogenation of conjugated diolefin polymers which comprises polymerizing at least one conjugated diolefin with an organo alkali metal polymerization initiator in a suitable solvent thereby creating a living polymer comprising (1) ethylenic unsaturation between backbone carbons wherein at least one of the doubly bound backbone carbons is substituted and (2) ethylenic unsaturation which is not between doubly bound backbone carbons wherein at least one is substituted, terminating the polymerization, and effecting selective hydrogenation of the ethylenic unsaturation in the conjugated diolefin units of the terminated polymer which is not between doubly bound backbone carbons wherein at least one is substituted, by contacting the polymer with hydrogen in the presence of no more than 0.02 mM of catalyst per gram of polymer of a bis(cyclopentadienyl)titanium catalyst.

    Selective hydrogenation of conjugated diolefin poylmers
    9.
    发明授权
    Selective hydrogenation of conjugated diolefin poylmers 失效
    共轭二烯烃聚合物的选择性氢化

    公开(公告)号:US5173537A

    公开(公告)日:1992-12-22

    申请号:US811219

    申请日:1991-12-20

    CPC分类号: C08C19/02 C08C2/04

    摘要: This is an improvement in a process for the hydrogenation of conjugated diolefin polymers which comprises polymerizing or copolymerizing at least one conjugated diolefin with an organo alkali metal polymerization initiator in a suitable solvent thereby creating a living polymer, terminating the polymerization by the addition of hydrogen, thereby generating an alkali metal hydride, and effecting selective hydrogenation of the unsaturated double bonds in the conjugated diolefin units of the terminated polymer by contacting the polymer, in the absence of hydrocarbon lithium and alkoxy lithium compounds, with hydrogen in the presence of at least one bis(cyclopentadienyl)titanium compound. The improvement comprises treating the polymer, before hydrogenation, with a reagent to increase catalyst activity, the reagent being such that it will react with the alkali metal hydride present in the polymer.

    Termination of anionic polymerization
    10.
    发明授权
    Termination of anionic polymerization 失效
    阴离子聚合的终止

    公开(公告)号:US5151475A

    公开(公告)日:1992-09-29

    申请号:US685111

    申请日:1991-04-15

    IPC分类号: C08C19/44 C08F2/38 C08F2/42

    CPC分类号: C08C19/44 C08F2/42

    摘要: This is an improvement upon a process which comprises anionically polymerizing monomers with an anionic polymerization initiator in a suitable solvent thereby creating a living polymer. The improvement comprises terminating the polymerization by the addition of a terminating agent selected from the group consisting of boranes, ammonia, halogens, hydrocarbons containing a C-H group where the carbon is connected directly to a triply-bound carbon or to two doubly-bound carbons and silanes.

    摘要翻译: 这是对包括阴离子聚合单体与阴离子聚合引发剂在合适溶剂中的方法的改进,从而产生活性聚合物。 改进包括通过加入选自硼烷,氨,卤素,含有CH基团的碳的终止剂终止聚合,其中碳直接连接到三键结合的碳或两个双键结合的碳上,以及 硅烷