Readily soluble, amorphous polyimide, and preparation process of same
    31.
    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。

    Thermally stable polyimide and preparation process of polyimide
    32.
    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

    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 resin composition
    33.
    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。

    Thermosetting resin from penta arylene bis maleimide
    34.
    发明授权
    Thermosetting resin from penta arylene bis maleimide 失效
    来自PENTA ARYLENE BIS马来酰亚胺的热固化树脂

    公开(公告)号:US5106937A

    公开(公告)日:1992-04-21

    申请号:US601358

    申请日:1990-10-23

    IPC分类号: C08G73/12

    CPC分类号: C08G73/124

    摘要: Disclosed is a composition for forming a thermosetting resin having excellent impact resistance and toughness. The composition comprises a bismaleimide compound represented by formula (I): ##STR1## wherein R is a hydrogen atom or methyl, and an amine compound represented by formula (II): ##STR2## wherein X is a radical selected from the group of divalent hydrocarbons having from 1 to 10 carbon atoms, hexafluorinated isopropylidene, carbonyl, thio, sulfinyl, sulfonyl, oxo, ##STR3## or by formula (III)): ##STR4## where in n is an integer of 0 to 50. Also disclosed is a process for preparing the composition.

    Formed polyimide article
    35.
    发明授权
    Formed polyimide article 失效
    形成聚酰亚胺制品

    公开(公告)号:US5374708A

    公开(公告)日:1994-12-20

    申请号:US741460

    申请日:1991-08-08

    摘要: Polyimide filaments and polyimide films having great strength, high elastic modulus and high crystallinity and comprising a novel polyimide which can be melt-processed without impairing high crystallinity and which essentially consists of recurring structural units represented by the formula (I): ##STR1## more than 85 mol % the polyimide consists of recurring structural units of the formula (II): ##STR2## and from 0.5 to 15 mol % of the polyimide consists of recurring structural units represented by the formula (III), the formula (II) exclusive, the formula (IV) and/or the formula (V).

    摘要翻译: PCT No.PCT / JP90 / 01679 Sec。 371日期1991年8月8日 102(e)日期1991年8月8日PCT 1990年12月21日PCT PCT。 出版物WO91 / 09900 日本1991年7月11日。具有强度高,弹性模量高,结晶度高的聚酰亚胺丝和聚酰亚胺膜,其包含可以熔融加工而不损害高结晶度的新型聚酰亚胺,并且其主要由式(10)表示的重复结构单元组成 I):(I)大于85mol%的聚酰亚胺由式(II)的重复结构单元组成:图像(II)和0.5至15mol%的聚酰亚胺由代表性的重复结构单元组成 通式(III),式(II)排除,式(IV)和/或式(V)。

    Readily processable polyimide and preparation process of same
    37.
    发明授权
    Readily processable polyimide and preparation process of same 失效
    易于加工的聚酰亚胺及其制备方法相同

    公开(公告)号:US5268447A

    公开(公告)日:1993-12-07

    申请号:US914015

    申请日:1992-07-15

    IPC分类号: C08G73/10 C08G69/26

    CPC分类号: C08G73/1071

    摘要: A readily melt processable polyimide obtained by reacting diamine represented by the formula: 4,4' ##STR1## wherein n is an integer of 1 or 2, with 3,3'4,4' -diphenylethertetracarboxylic dianhydride and/or 4,4' -(p-phenylenedioxy)diphthalic dianhydride or a mixture of these tetracarboxylic acid dianhydrides and pyromellitic dianhydride in the presence of phthalic anhydride.

    摘要翻译: 一种容易熔融加工的聚酰亚胺,其通过使由下式表示的二胺与4,4'-二苯基醚四羧酸二酐和/或4,4'-二苯基四羧酸二酐反应得到,其中n为1或2的整数, - (对亚苯基二氧基)二邻苯二甲酸二酐或这些四羧酸二酐和均苯四甲酸二酐在邻苯二甲酸酐存在下的混合物。

    Liquid crystal polyamide-imide copolymer
    38.
    发明授权
    Liquid crystal polyamide-imide copolymer 失效
    液晶聚酰胺 - 酰亚胺共聚物

    公开(公告)号:US5821319A

    公开(公告)日:1998-10-13

    申请号:US627037

    申请日:1996-04-03

    摘要: A sliding material and a heat resistant filament which primarily comprises a liquid crystal polyimide, a liquid crystal polyamide or a liquid crystal polyamide-imide copolymer having at least one recurring structural unit selected from the formula (1) and the formula (2) and is excellent in heat resistance, mechanical characteristics and other fundamental properties of polyimides, and relates to significant improvement of heat-resistance by heat-treating the sliding material, the filament and the molded items. The liquid crystal polyamide-imide copolymer which comprises in a polymer molecule 0.05.about.0.95 mole ratio of the recurring structural units of the formula (1) and 0.95.about.0.05 mole ratio of recurring structural units of the formula (2) has excellent processing ability ##STR1##

    摘要翻译: 一种滑动材料和耐热丝,其主要包括具有至少一个选自式(1)和式(2)的重复结构单元的液晶聚酰亚胺,液晶聚酰胺或液晶聚酰胺 - 酰亚胺共聚物,并且是 聚酰亚胺的耐热性,机械特性和其它基本性能优异,并且涉及通过热处理滑动材料,长丝和模制品而显着提高耐热性。 在聚合物分子中含有式(1)的重复结构单元的0.05分子量分数0.95摩尔比和式(2)的重复结构单元的0.95摩尔比的液晶聚酰胺 - 酰亚胺共聚物具有优异的加工能力, (1) (2)