HEAT-RESISTANT RUBBER COMPOSITION AND ITS USE

PROBLEM TO BE SOLVED: To obtain a heat-resistant rubber composition which is excellent in flowability and can be vulcanized and which can form a vulcanized rubber molded item that is excellent in mechanical properties and electrical properties and is extremely excellent in heat aging resistance, and...

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Bibliographische Detailangaben
Hauptverfasser:	TOJO TETSUO, SHIRATA TAKASHI, KAWASAKI MASAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a heat-resistant rubber composition which is excellent in flowability and can be vulcanized and which can form a vulcanized rubber molded item that is excellent in mechanical properties and electrical properties and is extremely excellent in heat aging resistance, and to provide its use. SOLUTION: The heat-resistant rubber composition comprises (A1) a specified ethylene-α-olefin nonconjugated polyene copolymer rubber having a limiting viscosity of 0.1-10 dl/g or (A2) a specified ethylene-α-olefin nonconjugated polyene copolymer rubber having a limiting viscosity of 1-10 dl/g, (A3) a specified ethylene-α-olefin nonconjugated polyene copolymer rubber which has a limiting viscosity of 0.1-5 dl/g and whose limiting viscosity is different from that of (A2), (B) an inorganic filler, and (C1) a specified polyorganosiloxane and/or (C2) a specified silane coupling agent in a specified ratio, wherein (A1), (A2) and (A3) each consists of ethylene and a 3-20C α-olefin-5-alkenyl-2-norbornene compound. COPYRIGHT: (C)2004,JPO&NCIPI