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    • 7. 发明授权
    • Method for producing curing agent having acidic substituent and unsaturated maleimide group, thermosetting resin composition, prepreg, and laminate
    • 具有酸性取代基和不饱和马来酰亚胺基团的固化剂的生产方法,热固性树脂组合物,预浸料和层压材料
    • US08796473B2
    • 2014-08-05
    • US12303627
    • 2007-06-01
    • Shinji TsuchikawaMasanori AkiyamaHikari Murai
    • Shinji TsuchikawaMasanori AkiyamaHikari Murai
    • C07D403/06C07D403/12
    • C08L79/085B32B27/12B32B27/28B32B27/42B32B2307/3065B32B2457/00C07D207/452C08G59/46C08G73/12C08J5/24C08J2363/00C08K3/40C08K5/18C08K5/3492C09D163/00Y10T428/31504Y10T428/31511
    • The invention provides a method for producing a curing agent having an acidic substituent and an unsaturated maleimido group, including reacting, in an organic solvent, a maleimide compound (a) having at least two N-substituted maleimido groups in a molecule thereof with an amine compound (b) having an acidic substituent (represented by formula (I)); a thermosetting resin composition containing the curing agent (A) produced through the method and a compound (B) which is cured with the curing agent, wherein a cured product of the composition has a glass transition temperature of 200° C. or higher; and a prepreg and a laminated sheet produced therefrom. The curing agent produced through the method of the present invention has good solubility in an organic solvent and can provide a thermosetting resin composition exhibiting excellent adhesion-to-metal foil property, heat resistance, moisture resistance, flame retardancy, and copper cladding heat resistance, and low dielectric properties and low dielectric loss tangent. Therefore, the thermosetting resin composition can produce a prepreg or laminated sheet exhibiting excellent performance suitable for a printed wiring board for electronic devices and similar devices.
    • 本发明提供一种具有酸性取代基和不饱和马来酰亚胺基的固化剂的制备方法,包括在有机溶剂中使分子中具有至少两个N-取代的马来酰亚胺基的马来酰亚胺化合物(a)与胺 具有酸性取代基的化合物(b)(由式(I)表示)); 含有通过该方法制备的固化剂(A)和用固化剂固化的化合物(B)的热固性树脂组合物,其中组合物的固化产物的玻璃化转变温度为200℃以上; 和由其制成的预浸料和层压片。 通过本发明的方法制备的固化剂在有机溶剂中具有良好的溶解性,并且可以提供表现出优异的粘合性 - 金属箔性,耐热性,耐湿性,阻燃性和铜包层耐热性的热固性树脂组合物, 低介电特性和低介电损耗角正切。 因此,热固性树脂组合物可以制造出适用于电子设备和类似装置的印刷线路板的表现出优异性能的预浸料或层压片。
    • 8. 发明授权
    • Apparatus for making electro-luminescent screens for color cathode-ray
tubes of continuous phosphor stripes
    • 用于制造连续磷酸盐条纹彩色阴极射线管的电致发光屏的装置
    • US4001842A
    • 1977-01-04
    • US574639
    • 1975-05-05
    • Takeshi SuzukiHiroshi TanakaMasanori Akiyama
    • Takeshi SuzukiHiroshi TanakaMasanori Akiyama
    • H01J9/227G03B41/00
    • H01J9/2272
    • An electroluminescent screen comprising a plurality of continuous phosphor stripes running the length of the screen formed on a panel for a color cathode-ray tube by applying film containing photosensitive material onto the panel. A shadow mask is attached to the panel, and the mask and film are irradiated by light from a light source.The shadow mask has on its concave face which faces the light source apertures arranged in substantially parallel rows, the apertures along the length of each of the rows being separated from each other by thin beam-intercepting bridge portions. The area on the shadow mask irradiated by the light is limited to cover only a part of the length of the rows of apertures by a shield plate having an opening for limiting the path of the light.The shield plate is moved so as to move the irradiated area on the shadow mask along the length of the rows of the apertures. The light source has sufficient length in the lengthwise direction of the rows of apertures to produce on the film the bright image of the apertures, each image being expanded to be connected with the adjacent bright images of the apertures on either side along the length of the row. The light source is gradually inclined synchronously with the moving of the irradiated area on the shadow mask, to always be kept substantially parallel to the rows of apertures in the irradiated area.