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50 条记录 (耗时 0.017 秒)

    Method for producing expandable thermoplastic polymer particles
    2.
    发明授权
    Method for producing expandable thermoplastic polymer particles 失效
    生产可膨胀热塑性聚合物颗粒的方法

    公开(公告)号：US5128380A

    公开(公告)日：1992-07-07

    申请号：US513660

    申请日：1990-04-24

    申请人： Kiyoshi Mori ,  Toshiaki Sugita ,  Yoshiyuki Hashiguchi ,  Masakichi Kishi

    发明人： Kiyoshi Mori ,  Toshiaki Sugita ,  Yoshiyuki Hashiguchi ,  Masakichi Kishi

    IPC分类号： C08J9/18 ,  C08F2/44 ,  C08F259/02 ,  C08J9/00 ,  C08J9/20

    CPC分类号： C08J9/20 ,  C08F259/02 ,  C08J9/0028

    摘要： The present invention provides a method for producing expandable thermoplastic polymer particles which comprises conducting polymerization by adding a polymerizable monomer either continuously or intermittently to thermoplastic polymer particles having a uniform particle size suspended in water, the improvement wherein an amide compound is added when the added amount of the polymerizable monomer is not more than one half of the total amount to be added in the course of polymerization and resulting polymer particles are impregnated with an easily volatile blowing agent after completion of addition of the amide compound and the polymerizable monomer. According to the present invention, expandable thermoplastic particles which are capable of giving cells, fine and uniform in size, are obtainable even by expanding immediately after production without any aging period.

    Graft copolymer and process for producing the same
    4.
    发明授权
    Graft copolymer and process for producing the same 失效
    接枝共聚物及其制备方法

    公开(公告)号：US08604133B2

    公开(公告)日：2013-12-10

    申请号：US11884309

    申请日：2006-02-14

    申请人： Shigeharu Takagi ,  Mitsuru Higa

    发明人： Shigeharu Takagi ,  Mitsuru Higa

    IPC分类号： C08F259/02 ,  B01J39/20 ,  H01M8/10 ,  H01M6/18

    CPC分类号： C08F291/04 ,  C08F293/005 ,  C08F2438/01 ,  C08F2/38

    摘要： A graft copolymer having a side chain graft-polymerized by atom transfer living radical polymerization (ATRP) on a main chain polymerized by organotellurium-mediated living radical polymerization (TERP), wherein the molecular weight distribution is such that Mw/Mn is 1.5 or less. The graft copolymer is also such that a main chain moiety mainly consisting of the main chain and a side chain moiety mainly consisting of the side chain have microphase-separated structures. The graft copolymer has a narrow molecular weight distribution and forms microphase-separated structures through self organization of hydrophobic and hydrophilic moieties.

    摘要翻译： 在通过有机碲介导的活性自由基聚合（TERP）聚合的主链上具有通过原子转移活性自由基聚合（ATRP）接枝聚合的侧链的接枝共聚物，其中分子量分布使得Mw / Mn为1.5以下 。 接枝共聚物也使主要由主链构成的主链部分和主要由侧链构成的侧链部分具有微相分离结构。 接枝共聚物具有窄的分子量分布，并通过疏水和亲水部分的自组织形成微相分离的结构。

    Graft copolymers containing ionomer units
    6.
    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

    申请人： Dennis G. Peiffer ,  Hsien-Chang Wang ,  Pamela Jean Wright ,  Joseph A. Sissano ,  Lewis J. Fetters ,  Louise M. Wheeler ,  Rebecca L. Rucker

    发明人： Dennis G. Peiffer ,  Hsien-Chang Wang ,  Pamela Jean Wright ,  Joseph A. Sissano ,  Lewis J. Fetters ,  Louise M. Wheeler ,  Rebecca L. Rucker

    IPC分类号： C08G81/02 ,  C08F257/00 ,  C08F257/02 ,  C08F259/00 ,  C08F259/02

    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。

    Highly crosslinked polymer particles and process for producing the same
    7.
    发明授权
    Highly crosslinked polymer particles and process for producing the same 失效
    高度交联的聚合物颗粒及其制备方法

    公开(公告)号：US4952651A

    公开(公告)日：1990-08-28

    申请号：US226200

    申请日：1988-07-29

    申请人： Kiyoshi Kasai ,  Masayuki Hattori ,  Hiroshi Tadenuma ,  Shiro Yasukawa

    发明人： Kiyoshi Kasai ,  Masayuki Hattori ,  Hiroshi Tadenuma ,  Shiro Yasukawa

    IPC分类号： C08F2/18 ,  C08F2/20 ,  C08F259/02 ,  C08F291/00

    CPC分类号： C08F259/02 ,  C08F291/00

    摘要： Highly crosslinked polymer particles, which may be porous, consisting essentially of a non-hydrophilic polymer can be produced by adding a polymerizable monomer mixture comprising at least 20% by weight of at least one non-hydrophilic, crosslinking polyvinyl monomer to an aqueous dispersion containing a non-crosslinked, low molecular weight polymer particles having a weight average molecular weight of 500-10,000 as a dispersoid, with a non-reactive solvent in a proportion of not more than 1 part by weight per part by weight of the polymerizable monomer mixture, the proportion of the polymerizable monomer mixture plus the non-reactive solvent to the non-crosslinked, low molecular weight polymer particles being 4 to 20 parts by weight per part by weight of the non-crosslinked, low molecular weight polymer particles, and then subjecting the polymerizable monomer mixture to radical emulsion polymerization with stirring.