RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE AND TIRE

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RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE AND TIRE

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TAKAHASHI YUKI

To provide: a tire having a small rolling resistance without impairing abrasion resistance; a rubber composition capable of obtaining the tire; and a rubber composition for a tire.SOLUTION: There is provided a rubber component and carbon black which has a dibutyl phthalate absorption amount of 150 to 170 mL/100 g and a compression dibutyl phthalate absorption amount of 110 to 120 mL/100 g, in which the difference between the dibutyl phthalate absorption amount and the compression dibutyl phthalate absorption amount is 35 to 60 mL/100 g and has a cetyltrimethyl ammonium bromide specific surface area of 90 to 130 m2/g and a hydrogen generation amount of 3000 to 4000 ppm in which the ratio (ΔD50/Dst) between the Stokes equivalent diameter Dst which gives the most frequency by the aggregate distribution acquired by a centrifugal sedimentation method and a half-value width ΔD50 of a peak including the Dst is 0.65 to 0.75.SELECTED DRAWING: None

【課題】耐摩耗性を損ねず、転がり抵抗の小さいタイヤ、並びに、該当タイヤが得られるゴム組成物及びタイヤ用ゴム組成物を提供する。【解決手段】ゴム成分と、ジブチルフタレート吸収量が１５０〜１７０ｍＬ／１００ｇであり、圧縮ジブチルフタレート吸収量が１１０〜１２０ｍＬ／１００ｇであり、前記ジブチルフタレート吸収量と前記圧縮ジブチルフタレート吸収量との差が３５〜６０ｍＬ／１００ｇであり、セチルトリメチルアンモニウムブロミド比表面積が９０〜１３０ｍ２／ｇであり、水素発生量が３０００〜４０００ｐｐｍであり、遠心沈降法で得られる凝集体分布で最多頻度を与えるストークス相当径Ｄｓｔ及び当該Ｄｓｔを含むピークの半値幅ΔＤ５０との比（ΔＤ５０／Ｄｓｔ）が０．６５〜０．７５であるカーボンブラックとを含有するゴム組成物。【選択図】なし

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Title :

RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE AND TIRE

Additional title:

ゴム組成物、タイヤ用ゴム組成物、及びタイヤ

Contributors:

TAKAHASHI YUKI (author)

Publication date :

2021-06-24

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Japanese

Classification :

IPC:

C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS