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:US5580918A

    公开(公告)日:1996-12-03

    申请号:US157129

    申请日:1994-02-16

    CPC分类号: C08L71/00 C08L79/08

    摘要: A polyimide resin composition comprising 50-95 parts by weight of a polyimide resin represented by the following formula (1): ##STR1## wherein X represents a direct bond, a hydrocarbon group, a carbonyl group, a thio group or so, Y.sub.1 -Y.sub.4 individually represent a hydrogen atom, a lower alkyl group or so and R.sub.1 represents an aliphatic group, an aromatic group or so; and 50-5 parts by weight of a polyetheretherketone, said composition having been subjected to heat treatment at 250.degree.-330.degree. C. and, after the heat-treatment, having crystallization enthalpy of 0-6 cal/g.The heat treatment of the polyimide resin composition can be effected at a low temperature in a short time. The polyimide resin composition has excellent dimensional stability and high-temperature physical properties. Moreover, it has excellent moldability and peeling resistance.

    摘要翻译: PCT No.PCT / JP93 / 00515 Sec。 371日期:1994年2月16日 102(e)日期1994年2月16日PCT提交1993年4月21日PCT公布。 出版物WO93 / 21277 日期:1993年10月28日一种包含50-95重量份由下式(1)表示的聚酰亚胺树脂的聚酰亚胺树脂组合物:其中X表示直接键,烃基,羰基, 硫基等,Y1-Y4分别表示氢原子,低级烷基等,R1表示脂肪族基团,芳香族基团等。 和50-5重量份的聚醚醚酮,所述组合物在250-330℃下进行了热处理,并且在热处理之后,结晶焓为0-6cal / g。 聚酰亚胺树脂组合物的热处理可以在短时间内在低温下进行。 聚酰亚胺树脂组合物具有优异的尺寸稳定性和高温物理性能。 此外,其具有优异的成型性和耐剥离性。

    Polyimide resin composition
    3.
    发明授权
    Polyimide resin composition 有权
    聚酰亚胺树脂组合物

    公开(公告)号:US6103806A

    公开(公告)日:2000-08-15

    申请号:US216867

    申请日:1998-12-21

    IPC分类号: C08L79/08

    CPC分类号: C08L79/08

    摘要: A polyimide resin composition is disclosed herein which comprises 5 to 60% by weight of a polyimide [polyimide (1)] having a repeating unit represented by the chemical formula 1 and 40 to 95% by weight of a polyimide [polyimide (2)] having a repeating unit represented by the chemical formula 2. According to the present invention, there are provided a polymer alloy in which the advantages of the polyimide (1) and the polyimide (2) are utilized and the disadvantages of the polyimide (1) and the polyimide (2) are reduced; a polyimide resin composition from which crystalline molded articles can be obtained even by a usual molding cycle, for example, an injection molding cycle of about 30 to 60 seconds; and a polyimide resin composition from which molded articles having an excellent dimensional accuracy and flexural modulus can be obtained even by a usual molding cycle, for example, an injection molding cycle of about 30 to 60 seconds, for example, in the case that the molded articles are intended to be used at a high temperature of 230.degree. C. or more, for example, a temperature of 230 to 300.degree. C., or 230 to 250.degree. C.

    摘要翻译: 本文公开了一种聚酰亚胺树脂组合物,其包含5至60重量%的具有由化学式1表示的重复单元的聚酰亚胺[聚酰亚胺(1)]和40至95重量%的聚酰亚胺[聚酰亚胺(2)] 具有由化学式2表示的重复单元。根据本发明,提供了使用聚酰亚胺(1)和聚酰亚胺(2)的优点的聚合物合金,并且聚酰亚胺(1) 并且聚酰亚胺(2)被还原; 聚酰亚胺树脂组合物,甚至可以通过通常的成型周期获得结晶模制品,例如约30至60秒的注塑周期; 以及聚酰亚胺树脂组合物,即使在通常的成型周期(例如,注射成型周期为约30〜60秒)下,也可以获得具有优异的尺寸精度和挠曲模量的成型制品,例如在成型 制品应在230℃或更高的高温下使用,例如温度为230-300℃,或230-250℃。

    Method of manufacturing a sheet-prepreg reinforced with fibers
    4.
    发明授权
    Method of manufacturing a sheet-prepreg reinforced with fibers 失效
    制造用纤维增强的片材预浸料的方法

    公开(公告)号:US5201979A

    公开(公告)日:1993-04-13

    申请号:US841204

    申请日:1992-02-27

    IPC分类号: B29C70/50 B32B31/00

    摘要: Method and apparatus for manufacturing a sheet-prepreg reinforced with fibers wherein a sheet of fibers such as warp or woven fibers such as fabrics is conveyed between a pair of band belts one of which is coated with a film of thermoplastic resin which has been heated higher than its softening point to enhance resin-impregnating efficiency and prevent the impregnated resin from contacting air. Further, when the sheet of fibers or woven fibers is conveyed in this manner, the molten resin is not maintained on the manufacturing line, thereby preventing it from being deteriorated by heat. The apparatus can be thus kept under operation for a long time and the sheet-prepreg reinforced with the fibers can be made much higher in quality and the deterioration of the impregnated resin can be further delayed.

    摘要翻译: 制造用纤维增强的片材预浸料的方法和装置,其中将诸如织物之类的经纱或织造纤维的纤维片材在一对带带之间输送,其中一条带带被涂覆有已经被加热的热塑性树脂膜 比其软化点提高树脂浸渍效率并防止浸渍树脂与空气接触。 此外,当以这种方式输送纤维或织造纤维时,熔融树脂不会保持在生产线上,从而防止其被热损坏。 因此,该设备可以长期保持运行,并且可以使用纤维增强的片材预浸料的质量高得多,并且可以进一步延迟浸渍树脂的劣化。

    Apparatus of manufacturing a sheet-prepreg reinforced with fibers
    5.
    发明授权
    Apparatus of manufacturing a sheet-prepreg reinforced with fibers 失效
    制造用纤维增强的预浸料的装置

    公开(公告)号:US5445701A

    公开(公告)日:1995-08-29

    申请号:US268718

    申请日:1994-06-30

    摘要: Method and apparatus for manufacturing a sheet-prepreg reinforced with fibers wherein a sheet of fibers such as warp or woven fibers such as fabrics is conveyed between a pair of band belts one of which is coated with a film of thermoplastic resin which has been heated higher than its softening point to enhance resin-impregnating efficiency and prevent the impregnated resin from contacting air. Further, when the sheet of fibers or woven fibers is conveyed in this manner, the molten resin is not maintained on the manufacturing line, thereby preventing it from being deteriorated by heat. The apparatus can be thus kept under operation for a long time and the sheet-prepreg reinforced with the fibers can be made much higher in quality and the deterioration of the impregnated resin can be further delayed.

    摘要翻译: 制造用纤维增强的片材预浸料的方法和装置,其中将诸如织物之类的经纱或织造纤维的纤维片材在一对带带之间输送,其中一条带带被涂覆有已经被加热的热塑性树脂膜 比其软化点提高树脂浸渍效率并防止浸渍树脂与空气接触。 此外,当以这种方式输送纤维或织造纤维时,熔融树脂不会保持在生产线上,从而防止其被热损坏。 因此,该设备可以长期保持运行,并且可以使用纤维增强的片材预浸料的质量高得多,并且可以进一步延迟浸渍树脂的劣化。

    Molded articles of fiber-reinforced plastic
    7.
    发明授权
    Molded articles of fiber-reinforced plastic 失效
    纤维增强塑料模制品

    公开(公告)号:US06613423B1

    公开(公告)日:2003-09-02

    申请号:US08169621

    申请日:1993-12-20

    IPC分类号: B32B2712

    摘要: A process for preparing a molded article of fiber-reinforced plastic having an optional configuration and no tendency to deformation and cracks by using a plate material consisting essentially of a fibrous reinforcement and a thermoplastic resin, comprising the steps of previously setting-up, on the plate material and/or a mold, a sheet prepreg obtained by impregnating a unidirectionally arranged fiber or woven cloth with a thermoplastic resin in areas where the fibrous reinforcement does not follow the flow of the resin well or in areas where special reinforcement is required and successively carrying out integral molding to obtain said article; and a molded article obtained by said process.

    摘要翻译: 一种制备纤维增强塑料的成型制品的方法,其具有任选的构造,并且不使用基本上由纤维增强材料和热塑性树脂组成的板材的变形和裂纹的趋势,包括以下步骤: 板材和/或模具,通过在热塑性树脂浸渍单向布置的纤维或机织布的纤维增强体不会在树脂的流动不完全的区域或需要特殊加强的区域中浸渍而获得的片材预浸料 进行整体成型以获得所述制品; 和通过所述方法获得的模塑制品。