RUBBER COMPOSITION, VULCANIZED RUBBER AND TIRE

摘要

PROBLEM TO BE SOLVED: To provide a vulcanized rubber that can be desirably used to form e.g. tires excellent in performances on ice, abrasion resistance, hydroplaning performances and wet performances. SOLUTION: This is a vulcanized rubber comprising at least one rubber component selected from among natural rubbers and synthetic diene rubbers and a fluorine-containing additive and having oblong cells having a mean void diameter (D) of 20-500μm and a ratio of the maximum length (L) of the mean void diameter (D) of at least 3 and coated with resin and having an average expansion ratio of 5-35%. For example, an embodiment in which the fluorine- containing additive is an oligomeric substance containing a perfluoroalkyl- containing copolymer and an embodiment in an inorganic filler and an organosilane compound are contained are desirable.