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    • 4. 发明授权
    • Flexible printing base
    • 柔性印刷基地
    • US4916009A
    • 1990-04-10
    • US224612
    • 1988-07-27
    • Atsushi HinoYuzuru Noda
    • Atsushi HinoYuzuru Noda
    • B32B15/088B32B15/08C08G73/10H01L23/495H05K1/00H05K1/03H05K3/38
    • C08G73/1042B32B15/08H01L23/49586H05K1/0346H01L2924/0002H05K1/0393Y10T428/266Y10T428/269Y10T428/31681Y10T428/31721
    • A flexible printing base comprising a metal foil having formed thereon a polyimide layer is disclosed, wherein said metal foil has a centerline average roughness of not more than 0.7 .mu.m, and said polyimide mainly comprises a repeating unit represented by formula (I): ##STR1## and a repeating unit represented by formula (II): ##STR2## wherein l:m=x:y, wherein x represents a number not less than 45 and less than 70; y represents a number more than 30 and not more than 55; and x+y=100, said polyimide layer is formed by applying a solution of a polyamic acid mainly comprising a repeating unit represented by formula (III): ##STR3## and a repeating unit represented by formula (IV): ##STR4## wherein l and m are as defined above, in N,N'-dimethylformamide and/or N,N'-dimethylacetamide on a metal foil, followed by imidation. The flexible printing base is quite free from curling either in the state of a composite laminate but also in the state where the metal foil has been removed by etching.
    • 公开了一种柔性印刷基底,其包括在其上形成有聚酰亚胺层的金属箔,其中所述金属箔的中心线平均粗糙度不大于0.7μm,所述聚酰亚胺主要包含由式(I)表示的重复单元: (I)和式(II)表示的重复单元:其中l:m = x:y,其中x表示不小于45且小于70的数; y表示多于30且不超过55的数字; 并且x + y = 100,所述聚酰亚胺层通过施加主要包含由式(III)表示的重复单元的聚酰胺酸的溶液形成:(III)和由式(IV)表示的重复单元: (IV)其中l和m如上定义,在金属箔上的N,N'-二甲基甲酰胺和/或N,N'-二甲基乙酰胺中,随后进行酰亚胺化。 柔性印刷基材在复合层压板的状态下也是完全没有卷曲,而且在通过蚀刻去除金属箔的状态下也是如此。
    • 8. 发明授权
    • Polyimide powder and process for producing the same
    • 聚酰亚胺粉及其制造方法
    • US4759987A
    • 1988-07-26
    • US871216
    • 1986-06-05
    • Keizo MizobeKoji SuzukiOsamu YoshikaiYuzuru Noda
    • Keizo MizobeKoji SuzukiOsamu YoshikaiYuzuru Noda
    • C08K3/00C08G73/00C08G73/10C08J3/215C08K7/00C08L79/08B32B27/34B05D7/00B32B27/20
    • C08J3/215C08L79/08C08J2379/08Y10T428/2969Y10T428/2993Y10T428/2996Y10T428/2998
    • A polyimide molding powder and a process for producing the same are disclosed, said powder comprising an aggregate of polyimide particles, in which the whole or a large portion of said powder comprises polyimide particles composed of a particulate filler coated with a polyimide resin and/or polyimide particles composed of a fibrous filler coated with a polyimide resin, and said process comprising reacting an aromatic tetracarboxylic acid dianhydride and an aromatic diamino compound in an organic solvent to synthesize a polyimide precursor and imidating the polyimide precursor to precipitate polyimide particles, wherein a particulate filler and/or a fibrous filler dispersed in a prescribed amount of an organic solvent is or are added to the reaction system at any stage before the imidation of the polyimide precursor. The molding powder produces polyimide molded products free from brittleness and excellent in appearance, as well as various performance characteristics due to the improving effects of the filler.
    • 公开了一种聚酰亚胺模制粉末及其制造方法,所述粉末包含聚酰亚胺颗粒的聚集体,其中所述粉末的全部或大部分包含由涂覆有聚酰亚胺树脂的颗粒填料和/或 由涂覆有聚酰亚胺树脂的纤维填料组成的聚酰亚胺颗粒,所述方法包括使芳族四羧酸二酐和芳族二氨基化合物在有机溶剂中反应,合成聚酰亚胺前体并酰亚胺化聚酰亚胺前体以沉淀聚酰亚胺颗粒,其中颗粒 在聚酰亚胺前体的酰亚胺化之前的任何阶段向分散体中添加分散在规定量的有机溶剂中的填料和/或纤维状填料。 成型粉末由于填充剂的改善效果而产生无脆性和外观优异的聚酰亚胺模塑制品以及各种性能特征。
    • 9. 发明授权
    • Process for producing polyimide/metallic foil composite film
    • 聚酰亚胺/金属箔复合膜的制造方法
    • US4623563A
    • 1986-11-18
    • US716313
    • 1985-03-27
    • Yuzuru NodaMasanori Imai
    • Yuzuru NodaMasanori Imai
    • B32B15/08B05D5/12B05D7/14B05D7/16B32B15/088H05K1/03
    • B05D5/12B05D7/16H05K1/0346Y10S428/901Y10T428/26Y10T428/31681Y10T428/31721
    • A process for producing a polyimide/metallic foil composite film having a curvature radius of at least 25 cm and which is substantially free from curling is described, comprising coating a solution of a polyimide precursor in an organic polar solvent on a 1 to 500 .mu.m thick metallic foil, the polyimide precursor being prepared by reacting a diamine component comprising p-phenylenediamine and an aromatic tetracarboxylic acid component comprising 3,3',4,4'-biphenyltetracarboxylic dianhydride or its derivative; heat-drying the above-prepared coating in the state that the metallic foil is fixed; and then heating it at a high temperature to form a 5 to 200 .mu.m thick polyimide film. This composite film does not substantially curl in either the lengthwise and widthwise directions and is very suitable for use in the production of an electric circuit board.
    • 描述了一种制备曲率半径至少为25cm且基本上没有卷曲的聚酰亚胺/金属箔复合膜的方法,包括将聚酰亚胺前体在有机极性溶剂中的溶液涂覆在1至500μm 通过使包含对苯二胺的二胺组分和包含3,3',4,4'-联苯四羧酸二酐或其衍生物的芳族四羧酸组分反应制备聚酰亚胺前体; 在金属箔固定的状态下对上述制备的涂层进行加热干燥; 然后在高温下加热,形成5〜200μm厚的聚酰亚胺膜。 该复合膜在长度方向和宽度方向上基本上不卷曲,并且非常适合用于生产电路板。