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26 条记录 (耗时 0.037 秒)

    Poly(silyleneethynylene phenyleneethynylenes), method for preparing same and hardened product thereof
    7.
    发明授权
    Poly(silyleneethynylene phenyleneethynylenes), method for preparing same and hardened product thereof 失效
    聚（亚乙烯基亚乙烯基亚苯基乙炔基），其制备方法及其硬化物

    公开(公告)号：US5420238A

    公开(公告)日：1995-05-30

    申请号：US216549

    申请日：1994-03-23

    申请人： Masayoshi Ito ,  Masahiko Mitsuzuka ,  Kenji Iwata ,  Koji Inoue ,  Tetsura Utsumi

    发明人： Masayoshi Ito ,  Masahiko Mitsuzuka ,  Kenji Iwata ,  Koji Inoue ,  Tetsura Utsumi

    IPC分类号： C08G77/60

    CPC分类号： C08G77/60

    摘要： A method for preparing a highly heat-resistant and burning-resistant poly(silyleneethynylene phenyleneethynylene) having a repeated unit represented by the following structural formula (1A): ##STR1## wherein the phenylene group may be in the o-, m- or p-form, R represents a halogen atom or an alkyl group, alkoxy group, phenoxy group, alkenyl group, alkynyl group, aromatic group, disubstituted amino group or silanyl group; n is an integer ranging from 0 to 4; and R' represents a hydrogen atom, an alkyl group, alkenyl group, alkynyl group or aromatic group, a product obtained by the method and a hardened product obtained by heat-treating, at a temperature ranging from 50.degree.to 700.degree. C., the poly(silyleneethynylene phenyleneethynylene).

    摘要翻译： （1A）表示的重复单元的高耐热耐燃性聚亚乙烯基亚苯基亚乙炔基的制备方法：其中亚苯基可以在o-，m - 或p-型，R表示卤素原子或烷基，烷氧基，苯氧基，烯基，炔基，芳基，二取代氨基或硅烷基; n为0〜4的整数; R'表示氢原子，烷基，链烯基，炔基或芳族基，通过该方法得到的产物和通过在50〜700℃的温度下热处理而得到的硬化物， 聚（亚乙烯基亚乙炔基亚苯基亚乙炔基）。

    Method for the production of low density copolymers of ethylene
    8.
    发明授权
    Method for the production of low density copolymers of ethylene 失效
    乙烯低密度共聚物生产方法

    公开(公告)号：US4190614A

    公开(公告)日：1980-02-26

    申请号：US784308

    申请日：1977-04-04

    申请人： Akira Ito ,  Kenji Iwata

    发明人： Akira Ito ,  Kenji Iwata

    IPC分类号： C08F2/00 ,  C08F2/04 ,  C08F2/06 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/02 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16 ,  C08F297/08 ,  C08F4/02 ,  C08F255/02

    CPC分类号： C08F297/08 ,  C08F10/02 ,  C08F210/02 ,  C08F210/16 ,  Y10S526/904

    摘要： In producing a low density polyethylene by a slurry copolymerization of ethylene and an .alpha.-olefin with use of a catalyst consisting of a magnesium compound-supported titanium and/or vanadium compound and an organoaluminum compound, a certain amount of ethylene is subject to a pre-polymerization in the presence of said catalyst prior to the copolymerization. Successively, the slurry copolymerization of ethylene and an .alpha.-olefin is effected in a low-boiling diluent to obtain a low density polyethylene of 0.925-0.950 in density, covering various grades in a wide range.

    摘要翻译： 在通过使用由镁化合物负载的钛和/或钒化合物和有机铝化合物组成的催化剂通过乙烯和α-烯烃的淤浆共聚制备低密度聚乙烯时，一定量的乙烯经受预 在共聚之前在所述催化剂存在下进行聚合。 接着，在低沸点稀释剂中进行乙烯和α-烯烃的淤浆共聚，得到密度为0.925-0.950的低密度聚乙烯，覆盖了宽范围内的各种等级。

    Fine cisplatin powder and process for the production thereof
    9.
    发明授权
    Fine cisplatin powder and process for the production thereof 有权
    顺铂粉末及其制备方法

    公开(公告)号：US06251355B1

    公开(公告)日：2001-06-26

    申请号：US09319837

    申请日：1999-06-10

    申请人： Toshitaka Murata ,  Keizou Ishikawa ,  Osamu Kogawa ,  Kenji Iwata

    发明人： Toshitaka Murata ,  Keizou Ishikawa ,  Osamu Kogawa ,  Kenji Iwata

    IPC分类号： C01B2100

    CPC分类号： C01G55/002 ,  A61K9/14 ,  A61K33/24 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03

    摘要： The present invention relates to a novel fine cisplatin powder utilized as an anticancer agent. The fine cisplatin powder obtained in the present invention does not cause secondary agglomeration, is excellent in fluidity and easily handleable in the pharmaceutical preparation step. Furthermore, the fine cisplatin powder is reduced in the content of N,N-dimethylformamide as the residual solvent, and can be dissolved rapidly in physiological saline, thus being suitable for cancer therapy particularly by intra-arterial injection. This fine powder can be produced by contriving specified means for crystallizing cisplatin from a solution thereof in N,N-dimethylformamide.

    摘要翻译： 本发明涉及用作抗癌剂的新颖的顺铂铂粉。 本发明得到的细顺铂粉末不会引起二次凝聚，流动性优异，药物制备工序容易操作。 此外，顺铂的细粉末作为残留溶剂的N，N-二甲基甲酰胺的含量降低，能够迅速溶解于生理盐水中，因此特别适用于动脉内注射的癌症治疗。 这种细粉末可以通过设计用于在N，N-二甲基甲酰胺中从其溶液中结晶顺铂的特定方法来制备。