WIRE HARNESS AND WATER CUT-OFF AGENT

• Main Author: TSUNODA TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 01.10.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONDUCTORS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CURRENT COLLECTORS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; INSULATORS; LINE CONNECTORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a wire harness which suppresses transfer of a plasticizer from a wire coating material to a water cut-off agent without addition of a plasticizer to the water cut-off agent and has good water cut-off performance and a water cut-off agent constituting the wire harness.SOLUTION: A wire harness 1 has a wire bundle composed of a plurality of insulated wires 10 which consist of a conductor 10a coated with a coating material 10b comprising a plasticizer-containing insulation resin, and the surface of the coating material 10b in conductor exposed parts 3 where the inner conductor 10a is exposed by partial removal of the coating material 10b and in coated parts 4 adjacent to the conductor exposed parts 3 is coated with a water cut-off agent 12 comprising a cross-linked resin having an equilibrium elastic modulus of 1.0 MPa or higher at 150°C. 【課題】電線被覆材から止水剤への可塑剤の移行を、止水剤への可塑剤の添加によらずに抑制し、良好な止水性能を有するワイヤーハーネスを提供すること、そのようなワイヤーハーネスを構成する止水剤を提供すること。【解決手段】ワイヤーハーネス１は、可塑剤を含む絶縁性樹脂からなる被覆材１０ｂにより導体１０ａが被覆された絶縁電線１０が複数本束ねられた電線束を有し、被覆材１０ｂの一部が除去されて内部の導体１０ａが露出した導体露出部３および導体露出部３に隣接する被覆部４における被覆材１０ｂの表面が、１５０℃において１．０ＭＰａ以上の平衡弾性率を有する架橋樹脂からなる止水剤１２により被覆されている。【選択図】図１