본 발명은 용액 및 유화 중합으로 제조된 스티렌/부타디엔 엘라스토머, 복수의 정지 마찰 촉진 수지 및 선택된 카본 블랙과 예비-소수성화된 침강 실리카의 특정 조합물을 함유하는 보강 충전제의 독특한 조합물을 함유하는 외측 원주 트레드 조성물을 갖는 공압 타이어에 관한 것이다.
A rubber composition is disclosed comprising, based on parts by weight per 100 parts by weight rubber (phr), (A) conjugated diene-based elastomers comprising: (1) from 20 to 70 phr of a solution polymerization prepared styrene/butadiene elastomer (S-SBR-A) having a styrene content in a range of from 35 to 45 percent and a Tg in a range of from -30°C to -50°C, (2) from 20 to 60 phr of a solution polymerization prepared styrene/butadiene elastomer (S-SBR-B) having a styrene content in a range of from 35 to 45 percent and a Tg in a range of from -3°C to -23°C, and (3) from 5 to 30 phr of an aqueous emulsion polymerization prepared styrene/butadiene elastomer (E-SBR) having a styrene content in a range of from 35 to 45 percent and a Tg in a range of from -30°C to -50°C; wherein said Tg's of said S-SBR-A, S-SBR-B and E-SBR are spaced apart from each other by at least 4°C; and (B) from 8 to 30 phr of at least three, preferably from three to five, different resins selected from the group polyester phthalate resin, styrene/alphamethyl styrene resin, gum rosin, coumarone indene resin and alkylphenol acetylene resin. The rubber composition may be used in a tread of a pneumatic tire.
/ - TIRE WITH RUBBER TREAD CONTAINING A COMBINATION OF STYRENE/BUTADIENE ELASTOMERS AND TRACTION RESINS AND PRE-HYDROPHOBATED PRECIPITATED SILICA REINFORCEMENT
스티렌/부타디엔 엘라스토머 및 정지 마찰 수지 및 예비-소수성화된 침강 실리카 보강재의 조합물을 함유하는 고무 트레드를 갖는 타이어
28.08.2019
Patent
Elektronische Ressource
Koreanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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