Aromatic diamine intermediates useful in the preparation of polyimide
    1.
    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

    IPC分类号: C07C225/22 C08G73/10

    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。

    Readily soluble, amorphous polyimide, and preparation process of same
    3.
    发明授权
    Readily soluble, amorphous polyimide, and preparation process of same 失效
    易溶,无定形聚酰亚胺及其制备方法相同

    公开(公告)号:US5480965A

    公开(公告)日:1996-01-02

    申请号:US280551

    申请日:1994-07-26

    摘要: This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising the thermoplastic polyimide and a fibrous reinforcement, a process for preparing the resin composition, an injection molded article of the resin composition, a polyimide-based composite obtained by molding the above soluble and thermoplastic polyimide in combination with a fibrous reinforcement, and a fibrous reinforcement having a surface modified with the above polyimide.The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula: ##STR1## wherein m and n are individually an integer of 0 or 1, and R is ##STR2## The polyimide of the invention is essentially amorphous, excellent in melt flow stability in the decreased temperature as compared with conventionally known polyimide and has greatly improved processability.The polyimide of the invention obtained by using a novel aromatic diamino compound as a monomer can control various properties such as melt flow ability and solubility in solvents by side chains and not by principal chain of polyimide. Thus, excellent melt flow property and solubility in solvents can be obtained while maintaining high heat resistance and adhesive property which are derived from benzophenone structure of the diamino compound of the the invention.

    摘要翻译: 本发明涉及易溶于有机溶剂的新型热塑性和无定形聚酰亚胺,用于聚酰亚胺的新型芳族二氨基化合物及其制备方法,包含热塑性聚酰亚胺和纤维增强剂的聚酰亚胺基树脂组合物, 用于制备树脂组合物的树脂组合物的注塑制品,通过将上述可溶性和热塑性聚酰亚胺与纤维增强剂组合成型而获得的聚酰亚胺类复合材料和具有用上述聚酰亚胺改性的表面的纤维增强剂。 聚酰亚胺包含必需的结构单元,其具有一个或多个下式的重复结构单元:其中m和n分别为0或1的整数,R为本发明的聚酰亚胺基本上为 与常规已知的聚酰亚胺相比,在降低的温度下的熔体流动稳定性优异并且具有极大的改进的加工性。 通过使用新颖的芳族二氨基化合物作为单体获得的本发明的聚酰亚胺可以通过侧链而不是聚酰亚胺的主链来控制各种性能如熔体流动性和在溶剂中的溶解度。 因此,在保持由本发明的二氨基化合物的二苯甲酮结构得到的高耐热性和粘合性的同时,可以获得优异的熔体流动性和溶剂中的溶解性。

    Aromatic diamine intermediates useful in the preparation of polyimides
    4.
    发明授权
    Aromatic diamine intermediates useful in the preparation of polyimides 失效
    用于制备聚酰亚胺的芳族二胺中间体

    公开(公告)号:US5354890A

    公开(公告)日:1994-10-11

    申请号:US80772

    申请日:1993-06-24

    摘要: A heat-resistant and thermoplastic polyimide which has low dielectric characteristics and recurring structural units of the following formula: ##STR1## wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member; aromatic diamines which are useful for the raw material monomers of the polyimide and have following formulas: ##STR2## and a process for preparing the polyimide of the above formula by reacting these aromatic diamines with a tetracarboxylic dianhydride in the presence of an aromatic dicarboxylic anhydride or aromatic monoamine, and successively thermally or chemically imidizing the resultant polyamic acid; are disclosed.

    摘要翻译: 具有低介电特性和具有下式的重复结构单元的耐热热塑性聚酰亚胺:其中R是具有2至27个碳原子并且选自脂族基团的四价基团 ,脂环族基团,单芳族基团,稠合多芳族基团和非缩合芳族基团彼此直接连接或桥接成员; 芳族二胺可用于聚酰亚胺的原料单体,具有以下分子式:< IMAGE>(IA)和< IMAGE>(IB)和通过使这些芳族二胺与四羧酸 二酐在芳族二羧酸酐或芳族单胺的存在下,并依次热或化学酰亚胺化所得聚酰胺酸; 被披露。

    Polyimide resin composition
    6.
    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

    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。

    Polyimides, process for the preparation thereof and polyimide resin
compositions
    7.
    发明授权
    Polyimides, process for the preparation thereof and polyimide resin compositions 失效
    聚酰亚胺,其制备方法和聚酰亚胺树脂组合物

    公开(公告)号:US5288843A

    公开(公告)日:1994-02-22

    申请号:US608727

    申请日:1990-11-05

    摘要: In one aspect, the present invention relates to polyimides having excellent thermal resistance and process for preparing the same comprising carrying out condensation of 4,4'-bis(3-aminophenoxy)biphenyl with pyromellitic dianhydride in the presence of a different diamine compound and optionally with a different tetracarboxylic acid dianhydride.In a second aspect, the present invention relates to a heat resistant resin composition consisting essentially of an aromatic polyetherimide and a defined polyimide.In a third aspect, the present invention relates to a polyimide resin composition comprised on a defined polyimide and a separate high-temperature engineering polymer.In a fourth aspect, the present invention relates to a resin composition comprised of a defined polyimide and an aromatic polyamideimide.

    摘要翻译: 一方面,本发明涉及具有优异耐热性的聚酰亚胺及其制备方法,包括在不同的二胺化合物和任选地存在下进行4,4'-双(3-氨基苯氧基)联苯与均苯四酸二酐的缩合 与不同的四羧酸二酐。 在第二方面,本发明涉及一种主要由芳族聚醚酰亚胺和所定义的聚酰亚胺组成的耐热树脂组合物。 在第三方面,本发明涉及包含在限定的聚酰亚胺和单独的高温工程聚合物上的聚酰亚胺树脂组合物。 在第四方面,本发明涉及由限定的聚酰亚胺和芳族聚酰胺酰亚胺组成的树脂组合物。