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    • 5. 发明专利
    • Overcoat core wire
    • OVERCOAT核心线
    • JP2007199525A
    • 2007-08-09
    • JP2006019587
    • 2006-01-27
    • Nippon Telegraph & Telephone East CorpSumitomo Electric Ind Ltd住友電気工業株式会社東日本電信電話株式会社
    • NAGANUMA YASUHIROHATTORI TOMOYUKITSUNEISHI KATSUYUKITAMURA TAKUSHISATO TOSHIHISAOZAWA YUTAKANISHIZAWA KIYOBUMISUGIMOTO MASAHIDE
    • G02B6/44H01B11/00
    • PROBLEM TO BE SOLVED: To provide an overcoat core wire in which an overcoat layer can be reliably removed and, moreover, the length of the overcoat layer reliably removable at one time operation is longer as compared with the conventional one.
      SOLUTION: The overcoat core wire 19 has such a structure that a coated optical fiber 1 made by covering a glass fiber 30 with a UV-curable resin layer 31 is further covered with the overcoat layer 16, wherein the overcoat layer 16 comprises: a first overcoat layer 16a which covers the outer circumference of the coated optical fiber 1 and comprises the UV-curable resin containing an additive having a molecular weight of at least 5,000, of providing strippability for the coated optical fiber 1; and a second overcoat layer 16b which covers the outer circumference of the first overcoat layer 16a and comprises the UV-curable resin capable of providing a crosslinking density larger than that of the first overcoat layer 16a on the contact region having a thickness of 3 μm to 20 μm, in contact with the first overcoat layer 16a.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供其中可以可靠地除去外涂层的外涂层芯线,此外,与常规操作相比,一次操作可以可靠地除去的外涂层的长度更长。 解决方案:外涂层芯线19具有如下结构:通过用UV固化树脂层31覆盖玻璃纤维30制成的涂覆光纤1进一步被外涂层16覆盖,其中外涂层16包括 :覆盖被覆光纤1的外周的第一覆盖层16a,其包含具有分子量为5,000以上的添加剂的紫外线固化性树脂,为被覆光纤1提供剥离性; 以及覆盖第一外涂层16a的外周的第二覆盖层16b,并且包括能够提供比第一外涂层16a的交联密度大的厚度为3μm的接触区域的交联密度的UV固化树脂至 20μm,与第一外涂层16a接触。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Overcoated optical fiber
    • 过光的光纤
    • JP2007017552A
    • 2007-01-25
    • JP2005196891
    • 2005-07-05
    • Nippon Telegraph & Telephone East CorpSumitomo Electric Ind Ltd住友電気工業株式会社東日本電信電話株式会社
    • SATO TOSHIHISAHATTORI TOMOYUKITAKAHASHI ATSUYA
    • G02B6/44C03C25/10C03C25/24
    • PROBLEM TO BE SOLVED: To provide an overcoated optical fiber from which an overcoat layer is surely removed in such a manner that the length of the overcoat layer of being removable in one operation is longer than ever before and in which the transmission loss is not further deteriorated even at a low temperature.
      SOLUTION: When a standard length L in the direction of an average line of the roughness curve of the inner surface 16a of the overcoat layer 16 is taken out from the roughness curve, and the sum of the height Yp from the average line of the taken-out part to the highest mountain peak and the depth Yv from the average line of the taken-out part to the lowest valley bottom is defined as Rz and the average value of the absolute values of the deviations between the average curve in the taken-out part and the measured curve is defined as Ra, the overcoated optical fiber satisfies following relations: 0.5 (μm)≤Rz≤6 (μm) and 0.1 (μm)
    • 要解决的问题:提供一种外涂层光纤,其中可以以这样的方式确保外涂层被除去的外涂层的光纤,使得在一次操作中可移除的外涂层的长度比以前更长,并且其中传输损耗 即使在低温下也不会进一步劣化。 解决方案:当从粗糙度曲线中取出外涂层16的内表面16a的粗糙度曲线的平均线的方向上的标准长度L,并且从平均线的高度Yp的和 的取出部分到最高山峰,从取出部分的平均线到最低谷底的深度Yv定义为Rz,平均值之间的平均值的平均值 取出部分和测量曲线被定义为Ra,外涂光纤满足以下关系:0.5(μm)≤Rz≤6(μm)和0.1(μm)
    • 9. 发明专利
    • Polymer clad coated optical fiber
    • 聚合物涂层光纤
    • JP2009198706A
    • 2009-09-03
    • JP2008039022
    • 2008-02-20
    • Sumitomo Electric Ind Ltd住友電気工業株式会社
    • SATO TOSHIHISAHATTORI TOMOYUKI
    • G02B6/44G02B6/00
    • PROBLEM TO BE SOLVED: To provide a polymer clad coated optical fiber that can suppress pistoning under a temperature changing environment and that is also superior in coating removability. SOLUTION: The polymer clad coated optical fiber 5 includes a resin coating layer (overcoat layer) 4 on the outside of a polymer clad primary optical fiber 3 in which a clad layer 2 is composed of ultraviolet light setting fluorinated carbon resin, wherein the resin coating layer (overcoat layer) 4 is formed by hardening resin composition having a crosslinking double bond concentration of 2.3-3.0 mmol/g and containing urethane acrylate based resin or epoxy acrylate based resin. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够抑制在温度变化环境下的活塞的聚合物包覆的光纤,并且还具有优异的涂层去除性。 解决方案:聚合物包覆光纤5包括在聚合物包层初级光纤3的外侧的树脂涂层(外涂层)4,其中包层2由紫外光固化氟化碳树脂构成,其中 通过使交联双键浓度为2.3〜3.0mmol / g的树脂组合物硬化并含有氨基甲酸酯丙烯酸酯类树脂或环氧丙烯酸酯类树脂,形成树脂被覆层(外涂层)4。 版权所有(C)2009,JPO&INPIT