시스-1,4 결합 함유량이 97% 이상이고, 100℃에서의 무니(Mooney) 점도(ML1+4)가 45 이상이고, 무니 점도에 대한 25℃에서의 5질량% 톨루엔 용액 점도(T-cp)〔cps〕의 비인 (T-cp)/(ML1+4)가 2.0 이상인 부타디엔 고무 30 ~ 70질량%와, 다른 디엔계 고무 30 ~ 70질량%로 이루어지는 고무 성분 100질량부에 대하여, 질소 흡착 비표면적이 35m/g 이상 50m/g 미만의 카본 블랙 (1)을 55 ~ 75질량부, 질소 흡착 비표면적이 50m/g 이상 95m/g 이하의 카본 블랙 (2)를 5 ~ 20질량부 배합하고, 카본 블랙 (1) 및 (2)의 합계가 60 ~ 95질량부인 조성물.

    A composition formed by compounding from 55 to 75 parts by mass of a carbon black (1) having a nitrogen adsorption surface area of at least 35 m2/g and less than 50 m2/g and from 5 to 20 parts by mass of a carbon black (2) having a nitrogen adsorption surface area of at least 50 m2/g and at most 95 m2/g with 100 parts by mass of a rubber component including from 30 to 70 mass % of butadiene rubber having a cis-1,4 bond content of at least 97% and a Mooney viscosity (ML1+4) of at least 45 at 100° C., a ratio (T-cp)/(ML1+4) of the viscosity of a 5 mass % toluene solution at 25° C. (T-cp) [cps] to the Mooney viscosity being at least 2.0, and from 30 to 70 mass % of other diene rubbers; the total of the carbon blacks (1) and (2) being from 60 to 95 parts by mass.


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    Title :

    RUBBER COMPOSITION FOR TIRE RIM CUSHION OR RUBBER FINISHING AND PNEUMATIC TIRE USING SAME


    Additional title:

    타이어 림 쿠션 또는 검 피니싱용 고무 조성물 및 그것을 이용한 공기입 타이어


    Publication date :

    2016-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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