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    • 12. 发明授权
    • Aromatic dinitro and diamino intermediates
    • 芳香二硝基和二氨基中间体
    • US5710334A
    • 1998-01-20
    • US453073
    • 1995-05-26
    • Yuko IshiharaMitsunori MatsuoKeizaburo YamaguchiAkihiro Yamaguchi
    • Yuko IshiharaMitsunori MatsuoKeizaburo YamaguchiAkihiro Yamaguchi
    • C07C201/12C07C205/45C07C221/00C07C225/22C08G73/10C08G73/12C08J5/18C08L79/08C07C217/84C07C217/90
    • C08G73/10C08G73/1007C08G73/1014C08G73/1017C08G73/1067Y10T428/31504Y10T428/31721
    • 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.
    • 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,且R为“无定形”,优异的 与传统已知的聚酰亚胺相比在降低的温度下的熔体流动稳定性,并且具有极大的改进的加工性能。 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。
    • 19. 发明授权
    • Polyimide intermediates
    • 聚酰亚胺中间体
    • US5631377A
    • 1997-05-20
    • US450150
    • 1995-05-26
    • Mitsunori MatsuoTsutomu IshidaAkio KarasawaKeizaburo YamaguchiAkihiro Yamaguchi
    • Mitsunori MatsuoTsutomu IshidaAkio KarasawaKeizaburo YamaguchiAkihiro Yamaguchi
    • C08G73/10C08L79/08C07C255/60C07D213/38
    • C08G73/1085C08G73/10C08G73/1039C08G73/105C08G73/1053C08G73/1071C08L79/08
    • This invention relates to a novel polyimide or polyimide copolymer having excellent heat resistance and greatly improved processability, 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 L is an oxygen atom, carbonyl, isopropylidene or hexafluoroisopropylidene, and X is ##STR2## , and 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.The polyimide or polyimide copolymer is outstanding in melt-flow stability, and has greatly improved processability and excellent heat resistance. Consequently, the polyimide or polyimide copolymer can be applied to structural materials, and electic . electronic appliances.
    • 本发明涉及耐热性优异且加工性极佳的新型聚酰亚胺或聚酰亚胺共聚物,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,包含聚酰亚胺或聚酰亚胺共聚物的聚酰亚胺系树脂组合物和 纤维增强材料,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L是氧原子,羰基,异亚丙基或六氟异亚丙基,X是X,且Ar是 选自具有6至27个碳原子的四价基团,并且选自具有芳族基团的单芳族基团,缩合多芳族基团和具有直接键合的桥连构件彼此连接的非缩合多芳族基团。 聚酰亚胺或聚酰亚胺共聚物在熔体流动稳定性方面是突出的,并且具有极大的改进的加工性和优异的耐热性。 因此,聚酰亚胺或聚酰亚胺共聚物可以应用于结构材料和电极。 电子电器。