To provide a method for producing a rubber composition that allows a liquid hydrocarbon of an increased molecular weight to be produced at a high degradation rate even under mild conditions, and a rubber composition produced by the production method, a method for producing re-crosslinked rubber with the rubber composition, a re-crosslinked rubber resulting from the rubber composition, a tire and a rubber industrial product.SOLUTION: A method for producing a rubber composition includes heating a crosslinked rubber at 150°C or higher and 300°C or lower in a reaction solvent containing a compound, which includes at least one aliphatic carbon-carbon double bond with the numbers of hydroxy groups and aldehyde groups being 0, respectively, resulting in a rubber composition including a liquid hydrocarbon.SELECTED DRAWING: None
【課題】穏和な条件下においても、より分子量の高い液状炭化水素を高分解率で製造することができるゴム組成物の製造方法、並びに、該製造方法により製造されたゴム組成物、該ゴム組成物を用いる再架橋ゴムの製造方法、該ゴム組成物から得られる再架橋ゴム、タイヤ及びゴム工業用品を提供する。【解決手段】架橋ゴムを、脂肪族炭素間二重結合を少なくとも1つ含み、ヒドロキシ基及びアルデヒド基の数がそれぞれ0である化合物を含む反応溶媒下において、150℃以上300℃以下で加熱して液状炭化水素を含むゴム組成物を得るゴム組成物の製造方法。【選択図】なし
METHOD FOR PRODUCING RUBBER COMPOSITION, RUBBER COMPOSITION, METHOD FOR PRODUCING RE-CROSSLINKED RUBBER, RE-CROSSLINKED RUBBER, TIRE AND RUBBER INDUSTRIAL PRODUCT
ゴム組成物の製造方法、ゴム組成物、再架橋ゴムの製造方法、再架橋ゴム、タイヤ及びゴム工業用品
2022-05-17
Patent
Elektronische Ressource
Japanisch
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