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58 条记录 (耗时 0.039 秒)

    Polyimide
    31.
    发明授权
    Polyimide 失效
    聚酰亚胺

    公开(公告)号：US5470943A

    公开(公告)日：1995-11-28

    申请号：US360584

    申请日：1994-12-21

    申请人： Yoshihiro Sakata ,  Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Tsutomu Ishida ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    发明人： Yoshihiro Sakata ,  Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Tsutomu Ishida ,  Mitsunori Matsuo ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    IPC分类号： C08G73/10 ,  C08G77/10 ,  C07D213/69 ,  C08G69/26

    CPC分类号： C08G73/1039 ,  C08G73/1085

    摘要： This invention relates to a novel fluorine-containing polyimide or polyimide copolymer being colorless and having transparency and very low dielectric characteristics, 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 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, a trifluoromethyl radical is situated at the 3- or the 4-position on a pyridine nucleus, and an imide nitrogen atom is connected at the 3- or the 4-position to an ether bond.The polyimide or polyimide copolymer has excellent heat resistance, outstanding melt-flow stability and greatly improved processability, and also is colorless and has high transparency and very low dielectric coefficient, and can be expected to be used as raw materials for electric.cndot.electronic appliances and optical instruments due to the above characteristics.

    摘要翻译： 本发明涉及一种新颖的含氟聚酰亚胺或聚酰亚胺共聚物，其具有透明性和非常低的介电特性，并且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，该聚酰亚胺系树脂组合物含有聚酰亚胺 或聚酰亚胺共聚物和纤维增强剂，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Ar是具有6至27个碳原子的四价基团，并且选自单芳族基团，缩合多芳族基团 具有芳族基团的自由基和非缩合多芳族基团彼此直接键合或桥接成员，三氟甲基位于吡啶核上的3-或4-位，酰亚胺氮原子连接在3 - 或4-位到醚键。 聚酰亚胺或聚酰亚胺共聚物具有优异的耐热性，优异的熔体流动稳定性和极好的加工性，并且是无色的，具有高透明度和非常低的介电系数，并且可以预期用作电气电子设备的原料 光学仪器由于上述特点。

    Aromatic diamine intermediates useful in the preparation of polyimide
    32.
    发明授权
    Aromatic diamine intermediates useful in the preparation of polyimide 失效
    芳族二胺中间体可用于制备聚酰亚胺

    公开(公告)号：US5322962A

    公开(公告)日：1994-06-21

    申请号：US59758

    申请日：1993-05-12

    申请人： Shoji Tamai ,  Keizaburo Yamaguchi ,  Yuko Ishihara ,  Saburo Kawashima ,  Hideaki Oikawa ,  Toshiyuki Kataoka ,  Akihiro Yamaguchi

    发明人： Shoji Tamai ,  Keizaburo Yamaguchi ,  Yuko Ishihara ,  Saburo Kawashima ,  Hideaki Oikawa ,  Toshiyuki Kataoka ,  Akihiro Yamaguchi

    IPC分类号： C07C225/22 ,  C08G73/10

    CPC分类号： C08G73/10 ,  C07C225/22 ,  C08G73/1067 ,  C08G73/1078

    摘要： Disclosed are a novel aromatic diamine; a polymide comprising 1,3-bis(3-aminobenzoyl)benzene or 4,4'-bis(3-aminobenzoyl)biphenyl as a diamine component and having recurring structural units represented by the formula (III): ##STR1## wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having from 2 to 27 carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and X is a divalent radical of ##STR2## and a polyimide having a terminal aromatic group which is essentially unsubstituted or substituted with a radical having no reactivity with amines or dicarboxylic acid anhydrides or a composition comprising said polyimide.

    摘要翻译： 公开了一种新型芳族二胺; （III）所示的具有重复结构单元的1,3-二（3-氨基苯甲酰基）苯或4,4'-双（3-氨基苯甲酰基）联苯的聚酰亚胺作为二胺成分， 其中R是选自具有2至27个碳原子的脂肪族基团，脂环族基团，单芳族基团，缩合多芳族基团和与直接键合或桥接成员相互连接的非缩合芳族基团的四价基团，以及 X是的二价基团和具有基本上未被取代的末端芳基或被不与胺或二羧酸酐反应的基团取代的聚酰亚胺或包含所述聚酰亚胺的组合物。

    Bis(3-aminophenoxy) aromatics and method of preparing the same
    34.
    发明授权
    Bis(3-aminophenoxy) aromatics and method of preparing the same 失效
    双（3-氨基苯氧基）芳烃及其制备方法

    公开(公告)号：US5077436A

    公开(公告)日：1991-12-31

    申请号：US831547

    申请日：1986-02-21

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

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

    IPC分类号： C04B7/32 ,  C04B7/345 ,  C04B28/02 ,  C07C205/38 ,  C07C217/90

    CPC分类号： C07C213/02 ,  C07C201/12 ,  C07C319/20 ,  C07C2103/94

    摘要： Bis(3-nitrophenoxy) derivatives of aromatic or bridged aromatic hydrocarbons are derived from m-dinitrobenzene and dihydroxy derivatives of said hydrocarbons and certain substituted derivatives thereof by a condensation reaction in dipolar aprotic solvents in the presence of bases. The bis(3-nitrophenoxy) derivatives and derivatives obtained are successively reduced to afford bis-(3-aminophenoxy)derivatives. This is a new method for reacting the dihydroxy-derivatives with m-dinitrobenzene, and hence can prepare novel bis(3-aminophenoxy) derivatives such as 4,4'-bis(3-amino-phenoxy)biphenyl, 1-[4-(3-aminophenoxy)phenyl]-1,3,3-trimethyl-6-(3-aminophenoxy)indan, 6,6'-bis(3-aminophenoxy)3,3,3',3'-tetramethyl-1,1'spirobiindan, and methyl substituted 2,2'-bis[4-(3-aminophenoxy)phenyl]propane.

    摘要翻译： 芳基或桥连芳烃的双（3-硝基苯氧基）衍生物衍生自所述烃的间二硝基苯和二羟基衍生物及其取代的衍生物，其在碱存在的情况下通过偶极非质子溶剂中的缩合反应。 将所得的双（3-硝基苯氧基）衍生物和衍生物连续地还原得到双 - （3-氨基苯氧基）衍生物。 这是使二羟基衍生物与间二硝基苯反应的新方法，因此可以制备新的双（3-氨基苯氧基）衍生物，如4,4'-双（3-氨基 - 苯氧基）联苯，1- [4- （3-氨基苯氧基）苯基] -1,3,3-三甲基-6-（3-氨基苯氧基）茚满，6,6'-双（3-氨基苯氧基）3,3,3'，3'-四甲基-1， 1'-螺二茚并和甲基取代的2,2'-双[4-（3-氨基苯氧基）苯基]丙烷。