RUBBER COMPOSITION AND PNEUMATIC TIRE

A rubber composition is disclosed comprising, based on 100 parts by weight of elastomer (phr),(A) from 30 to 50 phr of a first solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) in a range of from -80 °C to -50 °C and functionalized with an alkoxysilane group an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NZULU, Frida, POMPEI, Manuela, STEINER, Pascal Patrick, DELVILLE, Jerome Joel Daniel
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, based on 100 parts by weight of elastomer (phr),(A) from 30 to 50 phr of a first solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) in a range of from -80 °C to -50 °C and functionalized with an alkoxysilane group and at least one functional group selected from the group consisting of primary amines and thiols;(B) from 30 to 50 phr of a second solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) in a range of from -40 °C to -10 °C and functionalized with an alkoxysilane group and at least one functional group selected from the group consisting of primary amines and thiols;(C) from 0 to 40 phr of a polyisoprene having a cis 1,4 content greater than 95 percent selected from the group consisting of natural rubber and synthetic polyisoprene;(D) from 20 to 60 phr of a hydrocarbon resin having a Tg of at least 30°C;(E) from 40 to 80 phr of an oil; and(F) from 120 to 180 phr of silica.The rubber composition is for use in a tread of a pneumatic tire.