RUBBER COMPOSITION INCORPORATING A PREFORMED NATURAL RUBBER-CARBON BLACK COMPOSITE MATERIAL

A rubber composition is disclosed comprising: at least 20 phr of a composite material comprising a reinforcing carbon black dispersed in natural rubber; at least 3 phr or at least 5 phr of a conjugated diene elastomer, the composite material and the conjugated diene elastomer together providing at l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LOPEZ GAXIOLA, Daniel, SCHMIDT, Ryan Michael
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DEVICES OR ARRANGEMENTS RELATED TO TYRES METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL 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:	A rubber composition is disclosed comprising: at least 20 phr of a composite material comprising a reinforcing carbon black dispersed in natural rubber; at least 3 phr or at least 5 phr of a conjugated diene elastomer, the composite material and the conjugated diene elastomer together providing at least 90 phr or a total of 100 phr of vulcanizable elastomers in the rubber composition; a cure activator; and a sulfur-based cure agent. Also, a method of forming a rubber composition is disclosed, the method comprising the steps of: providing at least 20 phr of a composite material comprising a reinforcing carbon black dispersed in natural rubber and at least 3 phr or at least 5 phr of a conjugated diene elastomer, and blending said composite material and said conjugated diene elastomer at a temperature of at least 115°C to form a mixture, the mixture optionally further comprising silica; and thereafter, blending the mixture with a sulfur-based cure agent; the composite material and the conjugated diene elastomer together providing at least 90 phr or a total of 100 phr of vulcanizable elastomers in the mixture.