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21 条记录 (耗时 0.021 秒)

    Polyimide resin-fluoropolymer compositions
    11.
    发明授权
    Polyimide resin-fluoropolymer compositions 失效
    聚酰亚胺树脂 - 含氟聚合物组合物

    公开(公告)号：US4816516A

    公开(公告)日：1989-03-28

    申请号：US63962

    申请日：1987-06-19

    申请人： Norimasa Yamaya ,  Nobuhito Koga ,  Kenichi Baba

    发明人： Norimasa Yamaya ,  Nobuhito Koga ,  Kenichi Baba

    IPC分类号： C08L27/12 ,  C08L79/08 ,  C08L87/00

    CPC分类号： C08L79/08 ,  C08L27/12 ,  Y10S525/928

    摘要： This invention is a polyimide resin composition containing 100 parts by weight of polyimide having recurring units of the following formula: ##STR1## wherein Y is a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, thio radical, sulfinyl radical, sulfonyl radical or oxide, and R is a tetravalent radical of aliphatic radical having at least 2 carbons, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, or noncondensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function and from 5 to 100 parts by weight of fluororesin. The resin composition can provide molded products which are excellent in high-temperature stability, dimensional stability and mechanical strength and moreover have a low friction coefficient and good wear resistance. Therefore, the composition is useful as the material for electric and electronic devices, precision instrument parts etc.Polyimide of this invention can be prepared from aromatic diamines and tetracarboxylic acid dianydrides. Suitable aromatic diamines are 4,4'-bis(3-aminophenoxy)biphenyl, 2,2-bis[4-(3-aminophenoxy)phenyl]propane, bis[4-(3aminophenoxy)phenyl] sulfide etc. Suitable tetracarboxylic acid dianhydrides are pyromellitic dianhydride and 3,3', 4,4'-benzophenonetetracarboxylic dianhydride.Representative fluororesin which can be used in this invention is polytetrafluoroethylene.

    摘要翻译： 本发明是一种聚酰亚胺树脂组合物，其含有100重量份具有下式重复单元的聚酰亚胺：其中Y为键，具有1至10个碳的二价烃基，六氟化异丙叉基， 羰基，硫基，亚磺酰基，磺酰基或氧化物，R是具有至少2个碳的脂族基团的四价基团，脂环族基团，单芳族基团，缩合多芳族基团或非缩合多芳族基团，其中芳族基团与 键或交联功能和5至100重量份的氟树脂。 树脂组合物可以提供高温稳定性，尺寸稳定性和机械强度优异的成型体，并且摩擦系数低，耐磨性好。 因此，该组合物可用作电气和电子设备的材料，精密仪器部件等。本发明的聚酰亚胺可以由芳族二胺和四羧酸二酐制备。 合适的芳族二胺是4,4'-双（3-氨基苯氧基）联苯，2,2-双[4-（3-氨基苯氧基）苯基]丙烷，双[4-（3-氨基苯氧基）苯基]硫醚等。适用的四羧酸二酐 是均苯四酸二酐和3,3'，4,4'-二苯甲酮四羧酸二酐。 可用于本发明的代表性氟树脂是聚四氟乙烯。

    Polyimide resin composition
    14.
    发明授权
    Polyimide resin composition 失效
    聚酰亚胺树脂组合物

    公开(公告)号：US4847311A

    公开(公告)日：1989-07-11

    申请号：US143164

    申请日：1987-11-30

    申请人： Norimasa Yamaya ,  Nobuhito Koga ,  Kenichi Baba

    发明人： Norimasa Yamaya ,  Nobuhito Koga ,  Kenichi Baba

    IPC分类号： C08K7/02 ,  C08L79/08 ,  H01B3/30

    CPC分类号： H01B3/306 ,  C08K7/02 ,  C08L79/08

    摘要： This invention is a polyimide resin composition containing 100 parts by weight of polyimide having recurring units of the following general formula (I): ##STR1## where Y is a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, thio radical, sulfinyl radical, sulfonyl radical or oxide, and R is a tetra-valent radical of aliphatic radical having 2 or more carbons, cyclic aliphatic radical, monocyclic aromatic radical, fused polycyclic radical and polycyclic aromatic radical wherein the aromatic radicals are linked to one another directly or via bridged member, and from 5 to 100 parts by weight of fibrous reinforcing materials such as glass fibres, carbon fibres, potassium titanate fibres and aromatic polyamide fibres. The resin composition can provide molded products having excellent high-temperature stability, dimensional stability and mechanical strength, and is useful as the material for electric and electronic devices, precision instrument parts etc.Polyimide of this invention can be prepared from aromatic etherdiamined and taetracarboxylic acid dianhydrides. The aromatic etherdiamines are 4,4'-bis(3-aminophenoxy)biphenyl, 2,2-bis[4-(3-aminophenoxy)phenyl]propane, bis[4-(3-aminophenoxy)phenyl]sulfide, etc. The tetracarboxylic acid dianhydrides are pyromellitic dianhydride, 3,3',4,4'-benzophenonetetracarboxylic dianhydride, etc.

    Thermally stable polyimide and preparation process of polyimide
    18.
    发明授权
    Thermally stable polyimide and preparation process of polyimide 失效
    聚酰亚胺热稳定剂及其制备方法

    公开(公告)号：US5286840A

    公开(公告)日：1994-02-15

    申请号：US795750

    申请日：1991-11-21

    申请人： Hideaki Oikawa ,  Nobuhito Koga ,  Akihiro Yamaguchi ,  Shoji Tamai

    发明人： Hideaki Oikawa ,  Nobuhito Koga ,  Akihiro Yamaguchi ,  Shoji Tamai

    IPC分类号： C08G73/10 ,  C08G69/26

    CPC分类号： C08G73/1071 ,  C08G73/1014

    摘要： A thermally stable polyimide which is blocked at the polymer terminal with a dicarboxylic acid anhydride represented by the formula (III): ##STR1## wherein Z is a divalent radical selected from the group consisting of a monoaromatic radical which is substantially unsubstituted or substituted with a radical having no reactivity with amine or dicarboxylic acid anhydride and has from 6 to 15 carbon atoms, a condensed polyaromatic radical or a noncondensed aromatic radical connected each other with a direct bond or a bridge member, and has a fundamental skeleton represented by recurring structural units of the formula (IV): ##STR2## and a process of preparing the polyimide.

    摘要翻译： 在聚合物末端用由式（III）表示的二羧酸酐封闭的热稳定聚酰亚胺：（*化学结构*）（III）其中Z是选自以下的二价基团：单芳族基团，其为 基本上未被取代或被不与胺或二羧酸酐反应的基团或具有6至15个碳原子的基团取代，稠合的多芳族基团或非缩合的芳族基团彼此直接连接或桥接，并具有基本的 由式（IV）的重复结构单元表示的骨架：（*化学结构*）（IV）和制备聚酰亚胺的方法。

    Polyimide composition
    20.
    发明授权
    Polyimide composition 失效
    聚酰亚胺组合物

    公开(公告)号：US5321096A

    公开(公告)日：1994-06-14

    申请号：US35043

    申请日：1993-03-22

    申请人： Yuichi Okawa ,  Nobuhito Koga ,  Hideaki Oikawa ,  Tadashi Asanuma ,  Akihiro Yamaguchi

    发明人： Yuichi Okawa ,  Nobuhito Koga ,  Hideaki Oikawa ,  Tadashi Asanuma ,  Akihiro Yamaguchi

    IPC分类号： C08G73/10 ,  C08L71/00 ,  C08L79/08 ,  C08L81/06 ,  C08F283/04 ,  C08G69/48

    CPC分类号： C08L71/00 ,  C08G73/101 ,  C08L79/08 ,  C08L81/06

    摘要： A thermoplastic resin composition comprise 99.9.about.50 parts by weight of one or more thermoplastic resin selected from the group consisting of aromatic polyimide, aromatic polyetherimide, aromatic polyamideimide, aromatic polyethersulfone and aromatic polyether ketone and 0.1.about.50 parts by weight of one or more liquid crystal type aromatic polyimide having recurring structural units represented by the formula (1): ##STR1## wherein R.sub.1 .about.R.sub.5 is a hydrogen atom, fluorine atom, trifluoromethyl, methyl, ethyl or cyano and may be the same or different, and R is a tetravalent radical having 6.about.27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member.The present invention can provide thermoplastic resin compositions which have remarkably good processability and excellent thermal stability in addition to essentially excellent properties of each resin.

    摘要翻译： 热塑性树脂组合物包含99.9重量份的一种或多种选自芳族聚酰亚胺，芳族聚醚酰亚胺，芳族聚酰胺酰亚胺，芳族聚醚砜和芳族聚醚酮的热塑性树脂和0.1重量份的一种或多种液体 具有由式（1）表示的重复结构单元的结晶型芳族聚酰亚胺：（1）n原子，氟原子，三氟甲基，甲基，乙基或氰基，可以相同或不同，R是具有 6个碳原子，并且选自由直链或桥构件相互连接的单芳族基团，缩合多芳族基团和非缩合芳族基团组成的组。 本发明可以提供具有非常好的加工性和优异的热稳定性的热塑性树脂组合物，除了每种树脂的基本上优异的性能。