利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

58 条记录 (耗时 0.036 秒)

    Production process for making aromatic amine resins
    11.
    发明授权
    Production process for making aromatic amine resins 失效
    制备芳香胺树脂的生产工艺

    公开(公告)号：US5145949A

    公开(公告)日：1992-09-08

    申请号：US823478

    申请日：1992-01-22

    申请人： Keizaburo Yamaguchi ,  Yoshimitsu Tanabe ,  Tatsuhiro Urakami ,  Akihiro Yamaguchi ,  Norimasa Yamaya ,  Masahiro Ohta

    发明人： Keizaburo Yamaguchi ,  Yoshimitsu Tanabe ,  Tatsuhiro Urakami ,  Akihiro Yamaguchi ,  Norimasa Yamaya ,  Masahiro Ohta

    IPC分类号： C07C211/50 ,  C08G73/12

    CPC分类号： C08G73/121 ,  C07C211/50

    摘要： Disclosed herein is an aromatic amine resin formed of a mixture of aromatic amine compounds represented by the following general formula (a): ##STR1## wherein A means a phenylene, alkyl-substituted phenylene, diphenylene, diphenyl ether or naphthylenyl group, R.sup.1 denotes a halogen atom or a hydroxyl, C.sub.1-4 alkoxy or C.sub.1-5 alkyl group, l stands for 1 or 2, m is an integer of 0-3, when m is 2 or 3, R.sup.1 s may be the same or different and two of R.sup.1 s may join together into a 5- to 6-membered alicyclic moiety which may optionally contain one or more side chains, and n stands for an integer of 0-300.

    摘要翻译： 本文公开了由以下通式（a）表示的芳族胺化合物的混合物形成的芳香族胺树脂：其中A表示亚苯基，烷基取代的亚苯基，二亚苯基，二苯基醚或萘基， R1表示卤素原子或羟基，C1-4烷氧基或C1-5烷基，l表示1或2，m表示0-3的整数，当m为2或3时，R 1可以相同或不同 并且R 1中的两个可以连接在一起可以任选地含有一个或多个侧链的5-至6-元脂环部分，n表示0-300的整数。

    Process for producing fluorobenzophenone derivatives
    15.
    发明授权
    Process for producing fluorobenzophenone derivatives 失效
    氟代二苯甲酮衍生物的制备方法

    公开(公告)号：US4453009A

    公开(公告)日：1984-06-05

    申请号：US433438

    申请日：1982-10-08

    申请人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Kenichi Sugimoto ,  Yoshimitsu Tanabe

    发明人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Kenichi Sugimoto ,  Yoshimitsu Tanabe

    IPC分类号： C07C45/63 ,  C07C49/80 ,  C07C49/813 ,  C07C49/84

    CPC分类号： C07C201/12

    摘要： 4-Fluorobenzophenone derivatives of 4,4'-difluorobenzophenone are produced by effecting a halogen-fluorine exchanging reaction between the corresponding 4-halogenobenzophenone derivatives or 4,4'-dihalogenobenzophenone and an alkali fluoride.The reaction is carried out by heating in an organic solvent. After distilling off the solvent from the reaction product mixture, the end product is isolated by extracting with a solvent. Alternatively the end product is isolated by distillation.

    摘要翻译： 通过在相应的4-卤代二苯甲酮衍生物或4,4'-二卤代二苯甲酮与碱金属氟化物之间进行卤素 - 氟交换反应来制备4,4'-二氟二苯甲酮的4-氟二苯甲酮衍生物。 反应通过在有机溶剂中加热进行。 从反应产物混合物中蒸除溶剂后，通过用溶剂萃取分离终产物。 或者，最终产物通过蒸馏分离。

    Polyimide intermediates
    17.
    发明授权
    Polyimide intermediates 失效
    聚酰亚胺中间体

    公开(公告)号：US5631377A

    公开(公告)日：1997-05-20

    申请号：US450150

    申请日：1995-05-26

    申请人： Mitsunori Matsuo ,  Tsutomu Ishida ,  Akio Karasawa ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    发明人： Mitsunori Matsuo ,  Tsutomu Ishida ,  Akio Karasawa ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    IPC分类号： C08G73/10 ,  C08L79/08 ,  C07C255/60 ,  C07D213/38

    CPC分类号： C08G73/1085 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/105 ,  C08G73/1053 ,  C08G73/1071 ,  C08L79/08

    摘要： This invention relates to a novel polyimide or polyimide copolymer having excellent heat resistance and greatly improved processability, and has a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the polyimide or polyimide copolymer and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein L is an oxygen atom, carbonyl, isopropylidene or hexafluoroisopropylidene, and X is ##STR2## , and Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member.The polyimide or polyimide copolymer is outstanding in melt-flow stability, and has greatly improved processability and excellent heat resistance. Consequently, the polyimide or polyimide copolymer can be applied to structural materials, and electic . electronic appliances.

    摘要翻译： 本发明涉及耐热性优异且加工性极佳的新型聚酰亚胺或聚酰亚胺共聚物，具有用于聚酰亚胺的新型芳族二氨基化合物及其制备方法，包含聚酰亚胺或聚酰亚胺共聚物的聚酰亚胺系树脂组合物和 纤维增强材料，树脂组合物的制备方法，树脂组合物的注塑制品。 聚酰亚胺包含具有一个或多个下式的重复结构单元的必需结构单元：其中L是氧原子，羰基，异亚丙基或六氟异亚丙基，X是X，且Ar是 选自具有6至27个碳原子的四价基团，并且选自具有芳族基团的单芳族基团，缩合多芳族基团和具有直接键合的桥连构件彼此连接的非缩合多芳族基团。 聚酰亚胺或聚酰亚胺共聚物在熔体流动稳定性方面是突出的，并且具有极大的改进的加工性和优异的耐热性。 因此，聚酰亚胺或聚酰亚胺共聚物可以应用于结构材料和电极。 电子电器。