ANNULAR SEAL MATERIAL AND MANUFACTURING METHOD

To provide an annular seal material capable of being mass-produced using different materials for a middle core and an outer layer, and a method for manufacturing the annular seal material.SOLUTION: An annular seal material comprises a middle core, and an outer layer surrounding the middle core. The...

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Bibliographische Detailangaben
Hauptverfasser:	OSUMI NAOKI, MOCHIZUKI TOMOMITSU, OTSUKA MIKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PISTONS SEALINGS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide an annular seal material capable of being mass-produced using different materials for a middle core and an outer layer, and a method for manufacturing the annular seal material.SOLUTION: An annular seal material comprises a middle core, and an outer layer surrounding the middle core. The middle core and the outer layer comprise crosslinked products of crosslinkable rubber compositions that have mutually different colors after hot press molding and/or after secondary crosslinking.SELECTED DRAWING: Figure 1 【課題】中芯と外層とを異なった材料を用いて量産することができる環状シール材およびその製造方法を提供すること。【解決手段】中芯と、前記中芯の周囲を覆う外層とを含む環状シール材であって、前記中芯および前記外層は熱プレス成形後および二次架橋後のいずれか一方または両方において互いに異なった色を有する架橋性ゴム組成物の架橋物を含む環状シール材。【選択図】図１