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1. WO2007094370 - RUBBER COMPOSITION FOR TIRE SIDEWALL AND TIRE

Publication Number WO/2007/094370
Publication Date 23.08.2007
International Application No. PCT/JP2007/052633
International Filing Date 14.02.2007
IPC
C08L 9/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
B60C 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C08K 3/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
C08L 7/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
7Compositions of natural rubber
C08L 57/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
57Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
02Copolymers of mineral oil hydrocarbons
C08L 91/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
91Compositions of oils, fats or waxes; Compositions of derivatives thereof
02Vulcanised oils, e.g. factice
CPC
B60C 1/0025
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
0025Compositions of the sidewalls
C08K 3/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
C08L 21/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
21Compositions of unspecified rubbers
C08L 7/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
7Compositions of natural rubber
C08L 9/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
Y10T 152/10495
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
152Resilient tires and wheels
10Tires, resilient
10495Pneumatic tire or inner tube
Applicants
  • 株式会社ブリヂストン BRIDGESTONE CORPORATION [JP]/[JP] (AllExceptUS)
  • 倉角 純子 KURAZUMI, Junko [JP]/[JP] (UsOnly)
  • 真崎 孝二 MASAKI, Kouji [JP]/[JP] (UsOnly)
Inventors
  • 倉角 純子 KURAZUMI, Junko
  • 真崎 孝二 MASAKI, Kouji
Agents
  • 大谷 保 OHTANI, Tamotsu
Priority Data
2006-03773015.02.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) RUBBER COMPOSITION FOR TIRE SIDEWALL AND TIRE
(FR) COMPOSITION DE CAOUTCHOUC POUR FLANC DE PNEUMATIQUE ET PNEUMATIQUE
(JA) タイヤサイドウォール用ゴム組成物及びタイヤ
Abstract
(EN)
Disclosed is a rubber composition for tire sidewall, which is characterized by containing 10-70 parts by mass of a carbon black having a nitrogen adsorption specific surface area of 20-100 m2/g per 100 parts by mass of a rubber component, which is composed of a polybutadiene rubber having a cis-1,4 bond content of not less than 92% and a vinyl bond content of not more than 1.5% and a natural rubber and/or at least one other diene synthetic rubber, and not containing a softening agent having an aniline point of not more than 50˚C. This rubber composition for tire sidewall is excellent in crack propagation resistance, while securing adequate workability. Also disclosed is a tire wherein such a rubber composition is used for a sidewall.
(FR)
L'invention concerne une composition de caoutchouc pour flanc de pneumatique, laquelle est caractérisée en ce qu'elle contient 10-70 parties en masse d'un noir de carbone ayant une surface spécifique mesurée par adsorption d'azote de 20-100 m2/g pour 100 parties en masse d'un composant caoutchouc, lequel est composé d'un caoutchouc de polybutadiène ayant une teneur en liaison cis-1,4 supérieure ou égale à 92 % et une teneur en liaison vinylique inférieure ou égale à 1,5 % et d'un caoutchouc naturel et/ou d'au moins un autre caoutchouc synthétique diénique et en ce qu'elle ne contient pas de plastifiant ayant un point d'aniline inférieur ou égal à 50°C. Cette composition de caoutchouc pour flanc de pneumatique est excellente en termes de résistance à la propagation de craquelures, tout en garantissant une aptitude au façonnage adéquate. L'invention concerne également un pneumatique utilisant une telle composition de caoutchouc pour un flanc.
(JA)
 本発明は、シス-1,4結合含有量が92%以上であって、ビニル結合含有量が1.5%以下であるポリブタジエンゴムと、天然ゴム及び/又は少なくとも1種の他のジエン系合成ゴムとからなるゴム成分100質量部に対し、窒素吸着比表面積が20~100m2/gであるカーボンブラックを10~70質量部含有し、かつアニリン点が50°C以下である軟化剤を含有しないことを特徴とするタイヤサイドウォール用ゴム組成物であり、加工性を確保しつつ耐亀裂成長性に優れるタイヤサイドウォール用ゴム組成物及びそれをサイドウォールに用いてなるタイヤを提供するものである。
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