VULCANIZABLE RUBBER COMPOSITION

PROBLEM TO BE SOLVED: To obtain a vulcanizable rubber composition which excels in roll processing and the crosslinking efficiency of an organic peroxide and, in addition, can obtain crosslinked rubber molded products having excellent bleed resistance, strength characteristics, compressive set resist...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUCHI YOSHIHARU, KAMO KIMIHIKO, KAWASAKI MASAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BEARINGS BLASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL PROCESSES OF COMPOUNDING HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WEAPONS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a vulcanizable rubber composition which excels in roll processing and the crosslinking efficiency of an organic peroxide and, in addition, can obtain crosslinked rubber molded products having excellent bleed resistance, strength characteristics, compressive set resistance, thermal aging resistance, flatting resistance and abrasion resistance. SOLUTION: This vulcanizable rubber composition comprises 100 pts.wt. ethylene/an α-olefin/norbornene random copolymer rubber (A) composed of a compound of formula 1 or 2 (wherein (n) is 0-10; and R1-R3 are each hydrogen or an alkyl group) and having an intrinsic viscosity of 1-5 dl/g and 20-150 pts.wt. ethylene/an α-olefin based random copolymer (B) composed of ethylene, an α-olefin and, if necessary, a non-conjugated polyene and having an intrinsic viscosity of 0.01-0.8 dl/g, and (C) 0.001-0.05 mol, based on 100 g sum of the (A) and (B), organic peroxide.