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34 条记录 (耗时 0.027 秒)

    Polymer particles and process for producing the same
    1.
    发明授权
    Polymer particles and process for producing the same 失效
    聚合物颗粒及其制备方法

    公开(公告)号：US4742137A

    公开(公告)日：1988-05-03

    申请号：US906192

    申请日：1986-09-11

    申请人： Hisao Ono ,  Nobuyuki Ito ,  Kiyoshi Kasai ,  Nobuo Sakurai ,  Eitaro Okuya

    发明人： Hisao Ono ,  Nobuyuki Ito ,  Kiyoshi Kasai ,  Nobuo Sakurai ,  Eitaro Okuya

    IPC分类号： C08F2/16 ,  C08F2/22 ,  C08F36/04 ,  C08F279/02 ,  C08F36/00 ,  C08F36/06

    CPC分类号： C08F36/04 ,  C08F279/02

    摘要： An aqueous dispersion of polymer particles each consisting essentially of (a) a syndiotactic 1,2-polybutadiene having 70% or more of unsaturated hydrocarbon groups in the side chains and having a melting point of 70.degree. C. or higher, (b) a polymer mixture of said polybutadiene (a) and other polymer in the form that (a) and (b) co-exist in the same particle, or (c) a copolymer obtained by graft-polymerizing a conjugated diene and/or other polymerizable monomer on said polybutadiene (a), each of said particles having an average diameter of 10 .mu.m or less. Said aqueous dispersion can be produced by a process comprising steps of adding, to an aqueous dispersion of a first catalyst component solution, a conjugated diene monomer and a second catalyst component and polymerizing said conjugated diene monomer, characterized in that the first catalyst component solution contains (A) a cobalt compound, (B) at least one member selected from the group consisting of alkali metals, organometallic compounds of metals of Groups I to III of the Periodic Table and hydrides of metals of Groups I to III of the Periodic Table, and (C) 1 to 1,000 moles, per mole of the cobalt compound (A), of a conjugated diene compound and then the second catalyst component is at least one compound selected from the group consisting of carbon disulfide, phenylisothiocyanic acid and a xanthogen compound.

    摘要翻译： 聚合物颗粒的水性分散体各自主要由（a）在侧链中具有70％以上不饱和烃基的间同立构1,2-聚丁二烯，熔点为70℃以上，（b） 所述聚丁二烯（a）和（a）和（b）所示形式的其它聚合物的聚合物混合物共存于相同的颗粒中，或（c）通过共轭二烯和/或其它可聚合单体的接枝聚合获得的共聚物 在所述聚丁二烯（a）上，每个所述颗粒具有10μm或更小的平均直径。 所述水分散体可以通过以下步骤制备，所述方法包括向第一催化剂组分溶液的水分散体，共轭二烯单体和第二催化剂组分中加入并聚合所述共轭二烯单体的步骤，其特征在于，所述第一催化剂组分溶液含 （A）钴化合物，（B）选自碱金属，元素周期表I至III族金属的有机金属化合物和元素周期表I至III族金属的氢化物中的至少一种， 和（C）每摩尔钴化合物（A）1至1,000摩尔的共轭二烯化合物，然后第二催化剂组分为选自二硫化碳，苯基异硫氰酸和黄原酸化合物中的至少一种化合物 。

    Process for preparing large-sized polymer particles
    2.
    发明授权
    Process for preparing large-sized polymer particles 失效
    制备大尺寸聚合物颗粒的方法

    公开(公告)号：US4694035A

    公开(公告)日：1987-09-15

    申请号：US823013

    申请日：1986-01-27

    申请人： Kiyoshi Kasai ,  Masayuki Hattori ,  Osamu Kikuchi ,  Hiromi Takeuchi ,  Haruhiro Hirai ,  Nobuo Sakurai

    发明人： Kiyoshi Kasai ,  Masayuki Hattori ,  Osamu Kikuchi ,  Hiromi Takeuchi ,  Haruhiro Hirai ,  Nobuo Sakurai

    IPC分类号： C08F2/00 ,  C08F2/18 ,  C08F257/02 ,  C08F291/00

    CPC分类号： C08F257/02 ,  C08F291/00

    摘要： A process for preparing large-sized polymer particles having a particle diameter in a range of 0.1 to 500 .mu.m by seeded polymerization is described, comprising:finely dispersing a polymerizable monomer in an aqueous medium to prepare a monomer dispersion in which a number average particle diameter of the resulting monomer droplets is not larger than that of seed particles, and a number average particle diameter in a semi-stable condition (Dm) of the monomer droplets satisfies, with a desired number average particle diameter of the final polymer particle as D, the following relation:0.5.times.D

    摘要翻译： 描述了通过接种聚合制备粒度在0.1至500μm范围内的大尺寸聚合物颗粒的方法，其包括：将可聚合单体细分散在水性介质中以制备单体分散体，其中数均粒子 所得单体液滴的直径不大于种子颗粒的直径，并且单体液滴的半稳定条件（Dm）中的数均粒径满足所需的最终聚合物颗粒的数均粒径为D 以下关系：将所述单体分散体与种子颗粒的分散体组合以使可聚合单体吸收或吸附在种子颗粒上的0.5×D < 并在聚合引发剂的存在下聚合可聚合单体。

    Capsule-shaped polymer particles and process for the production thereof
    4.
    发明授权
    Capsule-shaped polymer particles and process for the production thereof 失效
    胶囊型聚合物颗粒及其制备方法

    公开(公告)号：US4798691A

    公开(公告)日：1989-01-17

    申请号：US871416

    申请日：1986-05-23

    申请人： Kiyoshi Kasai ,  Masayuki Hattori ,  Hiromi Takeuchi ,  Nobuo Sakurai

    发明人： Kiyoshi Kasai ,  Masayuki Hattori ,  Hiromi Takeuchi ,  Nobuo Sakurai

    IPC分类号： C08F2/00 ,  B01J13/18 ,  C08F2/18 ,  C08F2/44 ,  C08F2/50 ,  C08J9/28 ,  C08J9/32 ,  A61J5/00 ,  B01J13/02 ,  B32B25/00 ,  B32B27/00

    CPC分类号： B01J13/185 ,  Y10T428/2987

    摘要： Capsule-shaped polymer particles and a process for the production thereof are described. In one embodiment of the process, a polymerizable monomer component containing a cross-linkable monomer and a hydrophilic monomer, and an oily substance are finely dispersed in water to prepare an oil-in-water emulsion and then the polymerizable monomer component is polymerized, whereupon capsule-shaped polymer particles containing the oily substance as a core material are obtained. Upon removal of the oily substance in the particles, there are obtained capsule-shaped hollow polymer particles. These capsule-shaped polymer particle are excellent in such properties as mechanical strength and heat resistance, and thus can find many applications.

    摘要翻译： PCT No.PCT / JP85 / 00544 Sec。 371日期1986年5月23日第 102（e）日期1986年5月23日PCT提交1985年10月2日PCT公布。 出版物WO86 / 02017 日期：1986年4月10日。描述了囊状聚合物颗粒及其生产方法。 在该方法的一个实施方案中，将含有可交联单体和亲水单体的可聚合单体组分和油性物质精细分散在水中以制备水包油乳液，然后聚合单体组分， 得到含有油性物质作为芯材的胶囊状聚合物粒子。 在除去颗粒中的油状物质后，得到胶囊型中空聚合物颗粒。 这些胶囊型聚合物颗粒在机械强度和耐热性等性能方面是优异的，因此可以发现许多应用。

    Crystal polymorphism of aminoethylphenoxyacetic acid derivative
    6.
    发明授权
    Crystal polymorphism of aminoethylphenoxyacetic acid derivative 失效
    氨基乙基苯氧基乙酸衍生物的晶体多晶型

    公开(公告)号：US06376707B1

    公开(公告)日：2002-04-23

    申请号：US09889857

    申请日：2001-07-23

    申请人： Michio Toda ,  Tetsuro Tamai ,  Nobuyuki Tanaka ,  Kiyoshi Kasai ,  Junichi Sonehara ,  Eiji Tsuru

    发明人： Michio Toda ,  Tetsuro Tamai ,  Nobuyuki Tanaka ,  Kiyoshi Kasai ,  Junichi Sonehara ,  Eiji Tsuru

    IPC分类号： C07C22900

    CPC分类号： C07C217/60 ,  C07C213/10

    摘要： The present invention relates to a crystalline polymorph of 2-[4-[2-[[(1S,2R)-2-hydroxy-2-(4-hydroxy-phenyl)-1-methylethyl]amino]ethyl]phenoxy]acetic acid having strong diffraction peaks (diffraction angle: 2&thgr;±0.1°) at 10.8, 19.1, 19.3, 19.8, 20.6 and 27.0° in powder X-ray diffraction pattern, which has potent &bgr;2- and &bgr;3-adrenoceptor stimulating effects and is useful as an agent for relieving pain and promoting the removal of calculi in urolithiasis, and the like. For example, the crystalline polymorph can be prepared by hydrolyzing ethyl 2-[4-[2-[[(1S,2R)-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]-amino]ethyl]phenoxy]acetate phosphate by sodium hydroxide, adding an aqueous phosphoric acid solution at 40° C. and over, adding a mixed solvent of water and methanol or methanol to the resulting compound, and stirring the suspension at 40° C. to reflux temperature for 30 minutes to several hours.

    摘要翻译： 本发明涉及2- [4- [2 - [[（1S，2R）-2-羟基-2-（4-羟基 - 苯基）-1-甲基乙基]氨基]乙基]苯氧基]乙酸的结晶多晶型物 在其粉末X射线衍射图中，在10.8,19.1,19.3,19.8,20.6和27.0°处具有强衍射峰（衍射角：2θ±0.1°）的酸，其具有有效的β2-和β3-肾上腺素受体刺激作用，并且是有用的 作为缓解疼痛并促进尿石结石中的结石的去除的药剂等。 例如，结晶多晶型物可以通过水解2- [4- [2 - [[（1S，2R）-2-羟基-2-（4-羟基苯基）-1-甲基乙基] - 氨基]乙基]苯氧基 ]乙酸磷酸盐与氢氧化钠反应，在40℃加入磷酸水溶液，过滤，向所得化合物中加入水和甲醇或甲醇的混合溶剂，并在40℃下将悬浮液在回流温度下搅拌30 几分钟到几个小时。

    Magneto-optical recording medium and process for production of the same
    10.
    发明授权
    Magneto-optical recording medium and process for production of the same 失效
    磁光记录介质及其制造方法

    公开(公告)号：US5091267A

    公开(公告)日：1992-02-25

    申请号：US495952

    申请日：1990-03-20

    申请人： Mutsumi Asano ,  Kiyoshi Kasai ,  Hidehiko Misaki

    发明人： Mutsumi Asano ,  Kiyoshi Kasai ,  Hidehiko Misaki

    IPC分类号： G11B11/105

    CPC分类号： G11B11/10586 ,  Y10S428/90

    摘要： A magneto-optical recording medium and process for production of the same are disclosed, the magneto-recording medium comprising a substrate having thereon a magneto-optical recording film and at least one coating film provided on a light incident side and/or an opposite side thereto, of said magneto-optical recording film for protection of said magneto-optical recording film and/or Kerr effect enhancement, wherein said coating film contains silicon, nitrogen, and hydrogen as constituent elements. The magneto-optical recording medium has excellent reliability, excellent read-out performance properties as well as excellent recording sensitivity while exhibiting high magneto-optical effects and freedom from corrosion.