A rubber composition comprising a diene-based rubber, a filler, an oil, and water-soluble cellulose. It is preferrable that the rubber composition comprises 1 to 25 parts by mass of the water-soluble cellulose per 100 parts by mass of the diene-based rubbe...

[Problems] In a conventional sealant for a dye-sensitized solar cell, there has not been present such a type that has no leak or evaporation of an electrolyte after a reliability test, and is cured upon irradiation of energy rays. It has been known that cr...