A method for preparing a rubber composition comprising: a first step of kneading 100 parts by mass of a rubber component comprising 35 to 70% by mass of a styrene butadiene rubber having a styrene content of 15 to 40% by mass and a vinyl content of 10 to 30% and 30 to 65% by mass of a butadiene rubber with 50 parts by mass or more of a carbon black having a 24M4DBP oil absorption of 90 mL/100 g or more; a second step of adding and kneading 1.8 parts by mass or less of sulfur and 1.9 parts by mass or less of a sulfenamide-based vulcanization accelerator, based on 100 parts by mass of the rubber component, into a kneaded product obtained in the first step; and a third step of extruding a kneaded product obtained in the second step with an extrusion speed less than 35 m/min.
METHOD FOR PREPARING RUBBER COMPOSITION AND METHOD FOR PREPARING TIRE
2018-10-11
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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