Annular sealant and producing method

The present invention relates to an annular sealant comprising an inner core and an outer layer covering the periphery of the inner core, the inner core and the outer layer including crosslinked bodies of crosslinkable rubber compositions having different colors either after hot press molding or aft...

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Bibliographische Detailangaben
Hauptverfasser:	OTSUKA, MIKI, OSUMI, NAOKI, MOCHIZUKI, TOMOMITSU
Format:	Patent
Sprache:	chi ; eng
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 INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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:	The present invention relates to an annular sealant comprising an inner core and an outer layer covering the periphery of the inner core, the inner core and the outer layer including crosslinked bodies of crosslinkable rubber compositions having different colors either after hot press molding or after secondary crosslinking or both. The present invention provides an annular sealant that can be mass-produced using different materials for an inner core and an outer layer and a method for producing the same.