摘要:
An aromatic polyimide laminate composed of an aromatic polyimide composite film, a metal film, and a release film is disclosed. The aromatic polyimide composite film is composed of an aromatic polyimide substrate film and two thermoplastic aromatic polyimide layers. Each thermoplastic layer is fixed to each surface of the substrate film. The substrate film has no glass transition temperature of lower than 350° C., and the thermoplastic aromatic polyimide layer has a glass transition temperature of 190-280° C. The metal film is fixed, with no intervening adhesive layer, to one thermoplastic aromatic polyimide layer at a 90° peel strength of 0.8 kg/cm or more and the release film is fixed, with no intervening adhesive layer, to another thermoplastic aromatic polyimide layer at a 90° peel strength of 0.001-0.5 kg/cm, under such condition that the latter peel strength is one half or less of the former peel strength.
摘要翻译:公开了由芳香族聚酰亚胺复合膜,金属膜和剥离膜构成的芳香族聚酰亚胺层压体。 芳族聚酰亚胺复合膜由芳族聚酰亚胺基底膜和两个热塑性芳族聚酰亚胺层组成。 每个热塑性层被固定到基底膜的每个表面上。 基底膜的玻璃化转变温度低于350℃,热塑性芳香族聚酰亚胺层的玻璃化转变温度为190〜280℃。将金属膜固定在一个不含粘合剂层的一个热塑性芳族化合物 在90度剥离强度为0.8kg / cm 2以上的聚酰亚胺层中,将剥离膜固定在另一热塑性芳族聚酰亚胺层上,没有中间粘合剂层,在90°剥离强度为0.001-0.5kg / cm 3的条件下 条件是后者剥离强度是前剥离强度的一半或更小。
摘要:
A flexible aromatic polyimide film/metal film composite sheet is composed of a multi-layered polyimide film having a highly heat-resistant aromatic polyimide layer to one surface of which is bonded another aromatic polyimide layer (in which the multi-layer polyimide film is prepared by simultaneous casting), and a metal film which is bonded to the latter polyimide layer by heating under pressure and subsequent cooling under pressure using a double belt press.
摘要:
A polyimide film favorably employable in a method of producing a through-hole in an aromatic-polyimide film having on its surface a laminated or deposited metal film by applying laser beam onto the polyimide film, preferably is composed of a high Tg aromatic polyimide layer which has a Tg of 300° C. or higher or has no noticeable Tg and is produced from a biphenyltetracarboxylic acid compound and an aromatic diamine compound and a low Tg aromatic polyimide layer which has a Tg of lower than 375° C. but higher than 200° C., provided that the Tg of the low Tg polyimide layer is lower than the Tg of the high Tg polyimide layer and the metal film is laminated or deposited on the surface of the low Tg polyimide layer on the side not facing the high Tg polyimide layer.
摘要:
A roll of a web composed of an aromatic polyimide composite film and a metal film in which the polyimide composite film is composed of a non-thermoplastic aromatic polyimide base film and a thermoplastic aromatic polyimide cover film, the polyimide composite film showing a heat shrinkage ratio of less than 0.1% at 300° C., can be produced by heating a corresponding roll of web composed of a metal film and an aromatic polyimide composite film having a heat shrinkage ratio of more than 0.1% at 300° C., at a temperature between 150° C. and a glass transition temperature of the thermoplastic aromatic polyimide cover film, for a period of at least one minute.
摘要:
An aromatic polyimide film in the form of a continuous tape having a thickness of 50 to 125 .mu.m favorably employed for manufacture of electric circuit is composed of a biphenyltetracarboxylic acid recurring unit and a p-phenylenediamine recurring unit. The polyimide film has the following characteristics: a tensile strength of not lower than 30 kg/mm.sup.2 ; a tensile modules of not lower than 500 kg/mm.sup.2 ; a linear expansion coefficient of not higher than 2.5.times.10.sup.-5 cm/cm/.degree.C.; a heat shrinkage ratio of not higher than 0.05%; a low curling having a maximum curling of not higher than 3 mm for a disk of diameter of 86 mm; and a uniform thickness having a maximum rate of inclination of not more than 3 .mu.m per 10 mm.
摘要翻译:由联苯四羧酸重复单元和对苯二胺重复单元组成的具有50〜125μm厚度的连续带形式的芳族聚酰亚胺膜用于制造电路。 聚酰亚胺膜具有以下特性:拉伸强度不低于30kg / mm2; 拉伸模数不低于500 kg / mm2; 线性膨胀系数不高于2.5×10-5 cm / cm /℃。 热收缩率不高于0.05%; 对于直径为86mm的盘,具有不高于3mm的最大卷曲的低卷曲; 并且具有最大倾斜度不大于3μm/ 10mm的均匀厚度。
摘要:
A polyimide-copper composite laminate is composed of a metallic carrier having a thickness of 10-35 μm and a thin copper film having a thickness of 1-8 μm, and an intervening heat-resistant layer and an aromatic polyimide film directly fixed to the thin copper film without adhesive.
摘要:
A bonded wafer in which silicon wafers and an amorphous heat fusion bonding polyimide are used, a process for producing the same, and a substrate which is prepared by variously processing the bonded wafer.
摘要:
Provided is a laminate of a polyimide foam having an excellent thermal resistance, excellent flame retardancy, high safety, and high moisture-proof effects, and a thermal insulation material including the same. The present invention provides a laminate including a foam formed of polyimide having a glass transition temperature (Tg) exceeding 300° C., and a surface layer including a flame-retardant resin composition containing a chlorine-containing elastomer and a flame retardant, and laminated on at least one surface of the foam so as to be integrated therewith, and a thermal insulation material including the same.
摘要:
The object is to propose an improved process for the production of a polyimide foam by which a large-sized polyimide foam in a state of fine and homogeneous cells can be readily obtained by easy operations and convenient steps. A melt-shaped body of a polyimide precursor obtainable by melt-treating in a closed state a powder of a polyimide precursor including at least an aromatic tetracarboxylic acid ester component and an aromatic amine component. A process for the production of a polyimide foam including the steps of melt-shaping in a closed state a powder of a polyimide precursor including at least aromatic tetracarboxylic acid ester component and an aromatic amine component to give a melt-shaped body of the polyimide precursor, and foaming the melt-shaped body of the polyimide precursor by a heat treatment.
摘要:
A three-dimensional wiring board comprises a metal base having a roughed surface, a heat-bonding type of polyimide film without using adhesive, bonded to the roughed surface and serving as an electric insulating layer, and a copper foil for a conductive layer, bonded to the other surface of the polyimide film. A method for manufacturing the wiring board comprises a roughing treatment process for plating or oxidizing the surface of a metal base, thereby forming a roughed surface, a contact bonding process for attaching a polyimide film to the roughed surface and a copper foil by thermocompression bonding, thereby forming a laminate material, a patterning process for etching the copper foil into a desired conductive pattern, and a bending process for bending the laminate material into a desired three-dimensional shape by press working.