Wärmebeständige Kautschukzusammensetzungen

A heat-resistant rubber composition of the invention is a vulcanizable composition comprising a specific ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A). The ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A) may be a blend of an ethylene- alpha -olefin-nonconjugat...

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Bibliographische Detailangaben
Hauptverfasser:	TOJO, TETSUO, HAKUTA, TAKASHI, HOSOYA, MIKIO, KAWASAKI, MASAAKI
Format:	Patent
Sprache:	ger
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:	A heat-resistant rubber composition of the invention is a vulcanizable composition comprising a specific ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A). The ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A) may be a blend of an ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A1) having an intrinsic viscosity Ä eta Ü of 1 to 10 dl/g and a nonconjugated polyene content of 0.01 to 2 % by mol and an ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A2) having an intrinsic viscosity Ä eta Ü of 0.1 to 5 dl/g (this intrinsic viscosity being different from that of the ethylene- alpha -olefin-nonconjugated polyene copolymer rubber (A1)) and a nonconjugated polyene content of 0.01 to 2 % by mol, the heat-resistant rubber composition has extremely good fluidity and can provide a vulcanized rubber molded product showing not only excellent mechanical and electrical properties but also prominently high thermal aging resistance.