METHOD FOR MANUFACTURING RUBBER COMPOSITION, RUBBER COMPOSITION MANUFACTURED BY THE METHOD, AND TIRE MANUFACTURED BY USING THE SAME

To provide a method for manufacturing a rubber composition capable of improving physical properties of end products.SOLUTION: A method for manufacturing a polybutene-dispersed rubber composition in which polybutene is dispersed into rubber in a solution state includes: a step of dispersing hydrophobic extender oil and polybutene into water to manufacture extender oil/polybutene emulsion; a step of inputting extender oil/polybutene emulsion into a latex-shaped rubber composition and uniformly dispersing in a solution state to manufacture a rubber/extender oil/polybutene composition; and a step of performing solidifying, drying and molding processes to the rubber/extender oil/polybutene composition in a latex state through salting out and acid deposition. When a rubber composition manufactured in this manner is applied to a tire tread composite material, durability, grip performance and low rolling resistance are improved, and excellent braking characteristic, and a result of improving low-fuel consumption performance and wear performance are obtained.SELECTED DRAWING: None 【課題】本発明は、最終製品の物性を改善し得るゴム組成物の製造方法に関する。【解決手段】ゴムにポリブテンが溶液状で分散された、ポリブテンが分散されたゴム組成物を製造する方法であって；疎水性の伸展油とポリブテンを水に分散させて伸展油／ポリブテン乳化液を製造するステップ；伸展油／ポリブテン乳化液をラテックス形状のゴム組成物に投入して溶液状で均一に分散させてゴム／伸展油／ポリブテン組成物を製造するステップ；及びゴム／伸展油／ポリブテン組成物をラテックス状で塩析及び酸析を通じて固形化、乾燥及び成形工程を行うステップ；を含むゴム組成物の製造方法を提供する。このように製造されたゴム組成物をタイヤトレッド複合材に適用すると、耐久性、グリップ性、低い転がり抵抗性が改善されて優れた制動特性、低燃費特性及び摩耗性能が向上する結果が得られる。【選択図】なし