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    • 7. 发明授权
    • Coated optical fiber and fabrication process therefor
    • 涂层光纤及其制造工艺
    • US5703988A
    • 1997-12-30
    • US687497
    • 1996-08-06
    • Kazumasa OishiNobuhiro AkasakaTatsuya KakutaYasuo Matsuda
    • Kazumasa OishiNobuhiro AkasakaTatsuya KakutaYasuo Matsuda
    • C03C25/12G01M11/08G02B6/02G02B6/22
    • G01M11/088C03C25/12G02B6/02395
    • A coated optical fiber comprising a light-transmitting fiber and a resin coating layer disposed on the outer periphery of the light-transmitting fiber is formed, an external flaw is imparted to the surface of the resin coating layer while running the coated optical fiber, and then the coated optical fiber is subjected to the measurement of a tensile breaking strength thereof. At this time, the fiber having a strength retention ratio R.sub.S =S.sub.A /S.sub.0 of 0.98 or more, wherein S.sub.A is the median value of the tensile breaking strength after the provision of the external flaw, and S.sub.0 is the median value of the tensile breaking strength before the provision of the external flaw, is selected as a non-defective product. By using the above process for fabricating a coated optical fiber, it is possible to reduce both of the length and measuring period of time required for the evaluation of the external flaw resistance thereof, and to obtain a coated optical fiber having good characteristics while quantitatively evaluating the external flaw resistance of the fiber.
    • PCT No.PCT / JP95 / 00207 Sec。 371日期:1996年8月6日 102(e)日期1996年8月6日PCT提交1995年2月14日PCT公布。 公开号WO95 / 21800 日期1995年8月17日形成包含透光性纤维和设置在透光性纤维的外周的树脂被覆层的涂布光纤,在树脂被覆层的表面行进时,施加外部缺陷 涂布光纤,然后对涂覆的光纤进行拉伸断裂强度的测定。 此时,强度保持率RS = SA / S0为0.98以上的纤维,其中SA为提供外部缺陷后的拉伸断裂强度的中值,S​​0为拉伸断裂的中值 在提供外部缺陷之前的强度被选为无缺陷产品。 通过使用上述制造涂布光纤的方法,可以减少评估其外部抗瑕疵性所需的长度和测量时间段,并且获得具有良好特性的涂层光纤,同时定量评估 纤维的外部抗瑕疵。
    • 8. 发明授权
    • Communication line material
    • 通讯线材
    • US5562985A
    • 1996-10-08
    • US457144
    • 1995-06-01
    • Hiroaki SanoTatsuya KakutaToru Yamanishi
    • Hiroaki SanoTatsuya KakutaToru Yamanishi
    • G02B6/44G02B6/46D07G3/00
    • G02B6/4438Y10T428/2927Y10T428/2933Y10T428/2938Y10T428/296Y10T428/2962
    • The invention relates to coating composition, coated articles of manufacture, and to the formation of the coated articles. The coating is an energy-beam set resin containing fluid containing heat-expandable, fluid-encapsulating hollow spheres in the resin. The coating of a substrate, such as a communication line material, is accomplished by coating the material with a resin mixture containing expandable spheres and then exposing the coated material to an energy-beam source for a period of time to cure the resin and expand the spheres. The coating is applied to at least one filament of a communication line material. Such filaments can be gathered into bundles which are first extrusion coated with a thermoplastic polymer before being coated with the resin mixture. The composition of the resin material can be varied by changing the volume percent of the hollow spheres present in the resin mixture.
    • 本发明涉及涂料组合物,涂覆制品和涂层制品的形成。 该涂层是含有在树脂中含有可热膨胀的,流体封装的中空球体的流体的能量束固定树脂。 诸如通信线材料的基底的涂层通过用包含可膨胀球体的树脂混合物涂覆材料然后将涂覆的材料暴露于能量束源一段时间来固化树脂并使其膨胀 球体。 将涂层施加到通信线材料的至少一根细丝。 这些长丝可以聚集成束,其在用树脂混合物涂覆之前首先用热塑性聚合物挤出涂覆。 可以通过改变树脂混合物中存在的中空球的体积百分比来改变树脂材料的组成。