RUBBER COMPOSITION FOR TIRES AND PNEUMATIC TIRE

Provided are a rubber composition for tires that shows a balanced improvement in properties such as fuel economy, processability, heat aging resistance, abrasion resistance, wet-grip performance, performance on snow and ice, and handling stability, and a pneumatic tire formed from the rubber composi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MINAGOSHI Akira, SAKAKI Toshiaki, YOKOYAMA Yuka
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 TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS 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:	Provided are a rubber composition for tires that shows a balanced improvement in properties such as fuel economy, processability, heat aging resistance, abrasion resistance, wet-grip performance, performance on snow and ice, and handling stability, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for tires, containing: a highly purified, modified natural rubber having a pH adjusted to 2-7; carbon black and/or a white filler; and a silane coupling agent represented by the following Formula (S1): wherein R 1001 represents a monovalent group selected from -Cl, -Br, -OR 1006 , -O(O=)CR 1006 , -ON=CR 1006 R 1007 , -ON=CR 1006 R 1007 , -NR 1006 R 1007 , and -(OSiR 1006 R 1007 ) h (OSiR 1006 R 1007 R 1008 ), wherein R 1006 , R 1007 , and R 1008 are the same as or different from one another and each represent a hydrogen atom or a C1-C18 monovalent hydrocarbon group, and h represents a number whose average value is 1 to 4; R 1002 represents R 1001 , a hydrogen atom, or a C1-C18 monovalent hydrocarbon group; R 1003 represents R 1001 , R 1002 , a hydrogen atom, or the group: -[O(R 1009 O) j ] 0.5 - wherein R 1009 represents a C1-C18 alkylene group, and j represents an integer of 1 to 4; R 1004 represents a C1-C18 divalent hydrocarbon group; R 1005 represents a C1-C18 monovalent hydrocarbon group; and x, y, and Z are numbers satisfying the following relationships: x + y + 2z = 3, 0 ¤ x ¤ 3, 0 ¤ y, 2, and 0 ¤ z ¤ 1.