摘要:
A laminate produced by molding under heat and pressure a plurality of prepregs obtained by impregnating a resin into a composite fabric, either woven or nonwoven, comprising aromatic polyamide fibers and glass fibers has a low linear expansion coefficient and excellent interlaminar strength.
摘要:
Composite fibrous products such as composite cloth, composite strings, composite knitted goods, etc., produced by using combination yarns obtained by twisting one or more aromatic polyamide continuous filament yarns and one or more continuous glass yarns have high rigidity and excellent reinforcing effects.
摘要:
Copper-clad laminates for printed wiring boards with almost no warpage can be produced continuously without using a solvent by continuously running a continuous, fibrous substrate, supplying partially and intermittently a solventless thermosetting resin mixture to the running substrate, laminating a copper foil at least one surface of the running substrate, pressure molding with heating the copper foil laminated substrate in a mold comprising a pair of flat plates at least one of which has projecting portions tapered to the center of the flat plate at the periphery thereof, taking off and cutting the molded laminate.
摘要:
A polyamino-bis-maleimide prepolymer solution obtained by the reaction of 1 mol of N,N'-4,4'-diphenyl methane-bis-maleimide with 0.25 to 0.4 mol of 4,4'-diaminodiphenyl methane in an alkyleneglycol monoalkyl ether as a solvent at elevated temperatures. This solution can be impregnated with a substrate to form a prepreg. The prepreg can be laminated to form heat resistant laminate.
摘要:
A polyamino-bis-maleimide prepolymer solution obtained by the reaction of 1 mole of N,N'-4,4'-diphenyl methane-bis-maleimide with 0.25 to 0.4 mol of 4,4'-diaminodiphenyl methane in an alkyleneglycol monoalkyl ether as a solvent at elevated temperatures. This solution can be impregnated with a substrate to form a prepreg. The prepreg can be laminated to form heat resistant laminate.
摘要:
A curable polyamino-bis-imide resin, obtained by the thermal reaction of:(A) a bis-imide represented by the general formula I: ##STR1## wherein R.sub.1 stands for a divalent organic group having a carbon-carbon double bond and R.sub.2 for a divalent aromatic organic group having 1 to 3 benzene rings, with(B) a diamine represented by the general formula II: ##STR2## wherein X stands for one member selected from the group consisting of O, S, SO.sub.2, CH.sub.2, CO, COO, C(CH.sub.3).sub.2, CF.sub.2 and C(CF.sub.3).sub.2, providing that the three X's may be identical or not identical to one another and the hydrogen atoms attached to the benzene rings may be substituted by an inactive alkyl group, perfluoroalkyl group or halogen atom, a solution thereof, cross-linked resins therefrom and laminated boards therefrom.
摘要:
The present invention relates to a method for connecting electrodes comprising: interposing the polyphthalide represented by the formula (I): wherein R represents a divalent aromatic hydrocarbon group or a divalent heteroring-containing aromatic group, R1 represents an alkyl group, a fluorinated alkyl group, an alkoxy group or a halogen atom, where the number of R1 is 0 to 4, X represents O or N—R3, provided that R3 represents one of the following groups, Y represents SO2 or Co and n represents a number of repeating units in the polymer, as a pressure-sensitive conductive polymer at least partially between electrodes opposed to each other; and applying a pressure to fix the both electrodes, a surface-treated wiring board comprising polyphthalide represented by the formula (I) formed on at least part of the surface of the electrode part, an adhesive film comprising an adhesive and polyphthalide represented by the formula (I), and an electrode-connected structure using the same.
摘要翻译:本发明涉及一种电极连接方法,其特征在于,包括:插入由式(I)表示的多苯酞:其中R表示二价芳族烃基或含二价杂芳基的芳族基团,R 1表示烷基,氟化烷基 R 1为0〜4的烷氧基或卤素原子,X表示O或N-R 3,条件是R 3表示以下基团之中,Y表示SO 2或Co,n表示重复单元数 在聚合物中,作为至少部分地彼此相对的电极之间的压敏导电聚合物; 并且施加压力以固定两个电极,包括形成在电极部分的至少一部分表面上的由式(I)表示的多苯酞的表面处理的布线板,包含由式(I)表示的粘合剂和多苯酞的粘合剂膜 (I),以及使用其的电极连接结构。
摘要:
The present invention relates to a method for connecting electrodes comprising: interposing the polyphthalide represented by the formula (I): wherein R represents a divalent aromatic hydrocarbon group or a divalent heteroring-containing aromatic group, R1 represents an alkyl group, a fluorinated alkyl group, an alkoxy group or a halogen atom, where the number of R1 is 0 to 4, X represents O or N—R3, provided that R3 represents one of the following groups, Y represents SO2 or Co and n represents a number of repeating units in the polymer, as a pressure-sensitive conductive polymer at least partially between electrodes opposed to each other; and applying a pressure to fix the both electrodes, a surface-treated wiring board comprising polyphthalide represented by the formula (I) formed on at least part of the surface of the electrode part, an adhesive film comprising an adhesive and polyphthalide represented by the formula (I), and an electrode-connected structure using the same.
摘要翻译:本发明涉及一种电极连接方法,其特征在于,包括:插入由式(I)表示的多苯酞:其中R表示二价芳族烃基或含二价杂芳基的芳族基团,R 1表示烷基,氟化烷基 R 1为0〜4的烷氧基或卤素原子,X表示O或N-R 3,条件是R 3表示以下基团之中,Y表示SO 2或Co,n表示重复单元数 在聚合物中,作为至少部分地彼此相对的电极之间的压敏导电聚合物; 并且施加压力以固定两个电极,包括形成在电极部分的至少一部分表面上的由式(I)表示的多苯酞的表面处理的布线板,包含由式(I)表示的粘合剂和多苯酞的粘合剂膜 (I),以及使用其的电极连接结构。
摘要:
A semiconductor chip is attached to a lead frame with a filmy organic die-bonding material having a water absorption of 1.5% by volume or less; having a saturation moisture absorption of 1.0% by volume or less, having a residual volatile component in an amount not more than 3.0% by weight, having a modulus of elasticity of 10 MPa or less at a temperature of 250° C. The semiconductor device thus obtained can be free from occurrence of reflow cracks during reflow soldering for the packaging of semiconductor devices.
摘要:
The present invention is directed to a sheet-form environment purifying material comprising particles of metal and/or metal oxide consisting essentially of at least one member being selected from the group consisting of manganese, copper, zinc, iron, vanadium, nickel, titanium, palladium, platinum, manganese oxide, copper oxide, zinc oxide, iron oxide, vanadium oxide, nickel oxide, titanium oxide, palladium oxide, and platinum oxide, adsorbent particles consisting essentially of at least one member selected from the group consisting of activated carbon, zeolite, silica gel, sepiolite, activated alumina and activated clay, thermoplastic resin particles being selected from ultrahigh-molecular weight polyethylene, polyethylene, polycarbonate, polyamide acrylonitrile-butadiene-styrene resins, polyimide, polyvinyl chloride, cellulose acetate, polysulfone, polystyrene phthalate and polypropylene, and an air-permeable sheet of fibrous. The metal and/or metal oxide particles and the adsorbent particles are respectively bound to the thermoplastic resin particles while retaining their inherent surface areas and performances without being covered by the thermoplastic resin layers, and the thermoplastic resin particles are joined to the fibrous substrate. The present invention is also directed to a process for making the environment purifying material which comprises the steps of mixing all the particles and heating the mixture at a temperature not lower than the melting point of the thermoplastic resin and not higher than the thermal decomposition temperature thereof. The environment purifying material of the present invention is useful as deodorizers and harmful gas removers.