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    Polyimide resin composition
    2.
    发明授权
    Polyimide resin composition 失效
    聚酰亚胺树脂组合物

    公开(公告)号：US5494996A

    公开(公告)日：1996-02-27

    申请号：US277568

    申请日：1994-07-20

    申请人： Shoji Tamai ,  Yuichi Okawa ,  Wataru Yamashita ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Keizaburo Yamaguchi ,  Tadashi Asanuma ,  Akihiro Yamaguchi ,  Mitsunori Matsuo

    发明人： Shoji Tamai ,  Yuichi Okawa ,  Wataru Yamashita ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Keizaburo Yamaguchi ,  Tadashi Asanuma ,  Akihiro Yamaguchi ,  Mitsunori Matsuo

    IPC分类号： C08L71/10 ,  C08G73/10 ,  C08L71/08 ,  C08L79/04 ,  C08L79/08

    CPC分类号： C08L79/08 ,  C08L79/04

    摘要： A polyimide resin composition substantially comprising 1 99.9.about.50 parts by weight of polyimide having recurring structural units of the formula ##STR1## and 2 0.1.about.50 parts by weight of a polyimide which improved melt flowability and is prepared by using 1,3-bis(3-aminophenoxy)benzene or 6,6'-bis(3-aminophenoxy)-3,3,3',3'-tetramethyl-1,1'-spirobiindane as essential diamine component, or polyether pyridine having recurring structural units of the formula: ##STR2## is disclosed. Further, a polyimide based resin composition comprising the polyimide resin composition or a polyimide copolymer obtained by using the above diamines and a fibrous reinforcement is disclosed. These compositions have remarkably good processability, excellent heat stability and repeated fatigue characteristics.

    摘要翻译： 一种聚酰亚胺树脂组合物，其基本上包含+ E，crc / 1 / 99.9差异50重量份具有式（1）的重复结构单元的聚酰亚胺和+ E，crc / 2 / 0.1差异50重量份的 通过使用1,3-双（3-氨基苯氧基）苯或6,6'-双（3-氨基苯氧基）-3,3,3'，3'-四甲基-1,1' - 螺环丁烷作为必需二胺组分，或具有下式重复结构单元的聚醚吡啶：。 此外，公开了一种聚酰亚胺系树脂组合物，其包含使用上述二胺和纤维增强剂而得到的聚酰亚胺树脂组合物或聚酰亚胺共聚物。 这些组合物具有非常好的加工性能，优异的热稳定性和重复的疲劳特性。

    Polyimide
    3.
    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。

    Crystalline polyimide for melt molding with satisfactory thermal stability
    7.
    发明授权
    Crystalline polyimide for melt molding with satisfactory thermal stability 有权
    用于熔体模塑的结晶聚酰亚胺，具有令人满意的热稳定性

    公开(公告)号：US06458912B1

    公开(公告)日：2002-10-01

    申请号：US09674916

    申请日：2001-02-05

    申请人： Takashi Kuroki ,  Yoshihiro Sakata ,  Tomomi Okumura ,  Atsushi Shibuya ,  Yuichi Okawa ,  Hideaki Oikawa ,  Kayako Yanagihara ,  Yasunori Yoshida ,  Masaji Yoshimura ,  Hiroyasu Kido ,  Shoji Tamai

    发明人： Takashi Kuroki ,  Yoshihiro Sakata ,  Tomomi Okumura ,  Atsushi Shibuya ,  Yuichi Okawa ,  Hideaki Oikawa ,  Kayako Yanagihara ,  Yasunori Yoshida ,  Masaji Yoshimura ,  Hiroyasu Kido ,  Shoji Tamai

    IPC分类号： C08G7300

    CPC分类号： C08G73/1042 ,  C08G73/101 ,  C08G73/105

    摘要： A thermoplastic polyimide having good thermal stability, comprising a repeating unit represented by the chemical formula (1), a molecular terminal being composed of the chemical formula (2) and/or chemical formula (3), characterized in that: a melt viscosity ratio calculated by the numerical formula (1) and/or the numerical formula (3) is within a numerical range shown in the numerical formula (2) and/or the numerical formula (4) and 1,3-bis(4-aminophenoxy)benzene represented by the chemical formula (3) for production of the above polyimide, characterized in that the content of an azo compound is from 0.0 to 0.2%. The thermoplastic polyimide of the present invention has excellent characteristics {circle around (1)} to {circle around (4)} described below. {circle around (1)} It is superior in thermal stability on melting. That is, the degree of lowering of the fluidity on melting with a lapse of time is small and it is possible to apply to conventional melt molding. {circle around (2)} It has high heat resistance. {circle around (3)} It is superior in productivity. {circle around (4)} It is superior in dimensional accuracy.

    摘要翻译： 一种具有良好热稳定性的热塑性聚酰亚胺，其包含由化学式（1）表示的重复单元，由化学式（2）和/或化学式（3）组成的分子末端，其特征在于：熔体粘度比 由式（1）和/或数值式（3）计算的数值在数值式（2）和/或数值式（4）和1,3-双（4-氨基苯氧基） 由化学式（3）表示的用于制备上述聚酰亚胺的苯，其特征在于偶氮化合物的含量为0.0-0.2％。 本发明的热塑性聚酰亚胺具有以下所述的{圆周（1）}〜{圆周（4）}的特性。 {circle around（1）}熔融时的热稳定性优异。 也就是说，随着时间的流逝，熔融流动性的降低程度小，可以适用于常规的熔融成型。 {circle around（2）}它具有很高的耐热性。 {circle around（3）}它的生产力优越。 {circle around（4）}尺寸精度优越。

    Fluorine-containing polyamide
    9.
    发明授权
    Fluorine-containing polyamide 失效
    含氟聚酰胺

    公开(公告)号：US6103860A

    公开(公告)日：2000-08-15

    申请号：US332534

    申请日：1999-06-14

    申请人： Wataru Yamashita ,  Tomomi Yoshimura ,  Atsushi Shibuya ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Masahiro Ohta

    发明人： Wataru Yamashita ,  Tomomi Yoshimura ,  Atsushi Shibuya ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Masahiro Ohta

    IPC分类号： C08G69/42 ,  C08G69/12 ,  C08G69/32 ,  C08G69/40 ,  C08G73/10 ,  C08G69/02

    CPC分类号： C08G69/40 ,  C08G69/32 ,  C08G73/1039

    摘要： There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by general formula (1); ##STR1## wherein A is either of the groups below. ##STR2## This invention provides an organic optical component with excellent transparency, heat resistance and mechanical strength as well as a low birefringence. This invention also provides a novel aromatic polyamide with a low permitivity and excellent transparency, processability and thermal stability, besides excellent heat resistance inherent in an aromatic polyamide.

    摘要翻译： 公开了一种由基本上包含一个或多个重复结构单元的树脂制备的有机光学组件，所述重复结构单元选自由通式（1）表示的结构; 其中A是下面的组之一。 本发明提供了具有优异的透明性，耐热性和机械强度以及低双折射性的有机光学部件。 本发明还提供了芳香族聚酰胺固有的耐热性优异的低介电常数和优异的透明性，加工性和热稳定性的芳香族聚酰胺。