RUBBER COMPOSITE AND TIRES MADE BY USING THE SAME

The present invention provides a rubber composite constituted of at least two layers of members comprising a rubber composition containing a diene base rubber cross-linked by sulfur, wherein a difference in a concentration of sulfur between adjacent members in the rubber composite described above is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MISUMI, KAZUHIKO, MUKAI, UCHU, SHIMADA, TAKASHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention provides a rubber composite constituted of at least two layers of members comprising a rubber composition containing a diene base rubber cross-linked by sulfur, wherein a difference in a concentration of sulfur between adjacent members in the rubber composite described above is 1.5 part by mass or more based on 100 parts by mass of a rubber component in the rubber composition described above; zinc oxide is blended in an amount satisfying a condition shown in the following equation (I) based on 100 parts by mass of a rubber component in a low sulfur concentration rubber composition among the adjacent members, and an antioxidant and/or a naphthoic hydrazide compound are blended in an amount satisfying a condition shown in the following equation (II) based on 100 parts by mass of the rubber component in the low sulfur concentration rubber composition: blending amount parts by mass of zinc in the low sulfur concentration rubber composition > Sb × 1.3 + Sa - Sb × 0.3 (wherein Sa represents a blending amount (parts by mass) of sulfur in the high sulfur concentration rubber composition, and Sb represents a blending amount (parts by mass) of sulfur in the low sulfur concentration rubber composition) and blending amount mole of the antioxidant and / or the napthoic hydrazide compound in the low sulfur concentration rubber composition > 0.005 + Sa - Sb / 2000 (wherein Sa and Sb represent the same contents as described in the equation (I)); a rubber composite improved in a problem originating in a difference in a concentration of a blending agent, particularly sulfur between adjacent rubber compositions comprising a rubber composition cross-linked by sulfur without using new raw materials and members; and a tire prepared by using the same.