OPTICAL FIBER
    1.
    发明专利

    公开(公告)号:JP2000111767A

    公开(公告)日:2000-04-21

    申请号:JP27206099

    申请日:1999-09-27

    Abstract: PROBLEM TO BE SOLVED: To provide a coating material which ensures little residue on the glass of glass fibers after peeling from an array of the glass fibers while maintaining satisfactory adhesion to the fibers so as not to cause delamination by specifying the equilibrium elastic modulus and tensile strength of a primary coating. SOLUTION: An optical fiber 10 coated with a primary coating material 14 comprising a photosetting polymer material has a slender glass fiber 12 capable of propagating light waves in the longitudinal direction. The primary coating has 120-500 psi equilibrium elastic modulus at 20 deg.C and

    IMPROVED IGNITION DELAYED ELECTRIC CABLE AND ITS PRODUCTION

    公开(公告)号:JP2001135163A

    公开(公告)日:2001-05-18

    申请号:JP2000287828

    申请日:2000-09-22

    Abstract: PROBLEM TO BE SOLVED: To provide an electric cable having improved ignition delay and reduced crosstalks. SOLUTION: This electric cable comprises a plurality of pairs of conductive elements 24 having insulated copper wires stranded, ignition delayed fiber layers 54 spirally formed or wound around the conductor pairs or groups of the conductor pairs and a dielectric coated film 32 formed around the conductor pairs and the fiber layers. The fiber layer is produced by glass fiber, polyimide, polyaramid fiber or other proper ignition delaying material and/or a combination of these materials.

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