发明名称 |
OPTICAL FIBER CORD |
摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber cord with which a finer diameter may be achieved and a non-halogen characteristic and fire-retardance are sufficiently excellent while having sufficient bending rigidity and transmission characteristic. SOLUTION: This optical fiber cord 1 has a coated optical fiber 11, a buffer fiber layer 12 covering the circumference of the coated optical fiber 11 and a sheath 13 (sheath member) covering the circumference of the buffer fiber layer 12. The sheath 13 is formed by laminating an inner layer 13a which consists of a first resin compsn. not containing a halogen element and has a Young's modulus of 80 to 150 kgf/mm2 and an outer layer 13b which consists of a second resin compsn. not containing the halogen element, has a Young's modulus of 5 to 50 kgf/mm2 and has the flame-retardance of a V-0 level in a UL-94 test.
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申请公布号 |
JP2001091797(A) |
申请公布日期 |
2001.04.06 |
申请号 |
JP19990269089 |
申请日期 |
1999.09.22 |
申请人 |
SUMITOMO ELECTRIC IND LTD;NIPPON TELEGR & TELEPH CORP <NTT>;TOYOKUNI ELECTRIC CABLE CO LTD |
发明人 |
YAMANO MASAYOSHI;SUETSUGU YOSHIYUKI;TACHIKURA MASAO;URUNO SHIGENORI;IZUMIDA CHIKASHI;TOMITA NOBUO;TAMURA HAJIME;NAGASE YOICHI;TSUCHIYA NOBUYUKI;OKABE YOSHIHISA |
分类号 |
G02B6/44;(IPC1-7):G02B6/44 |
主分类号 |
G02B6/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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