NOVELTY - A resin composition comprises ( alpha )-olefin polymer (A) having melt flow rate of 0.5-60 g/10 minutes, tackifying resin (B) having softening point of 70-150 degrees C, and acidic radical-containing olefin polymer (C) having melt flow rate of 100-1000 g/10 minutes at 190 degrees C.    USE - Resin composition is used for sealing material for electrode substrate for dye-sensitized solar cell (all claimed). Uses include but are not limited to textile finishing agent, sound absorption material, coating agent for surface modification, ink binder, adhesive agent, coating-film water proof material, gel-coating agent, resin for artificial marble, synthetic leather, resin for laminated glasses, damping material, surfactant, and sealing material for liquid crystal display panel.    ADVANTAGE - The resin composition has excellent adhesiveness and tolerance with respect to electrolyte layer. The dye-sensitized solar cell using the resin composition has excellent heat resistance, durability, liquid-spill prevention property and workability.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) sealing material (6), which is formed using the resin composition;    (2) electrode substrate, which has a substrate, a conductive layer (9) formed on the substrate, and sealing material formed in the peripheral portion of the substrate; and    (3) dye-sensitized solar cell (100), which has electrode substrate and counter electrode substrate (20) which are arranged opposingly with specified interval, sealing material formed in the peripheral portion by the opposing surface side of the electrode substrate and counter electrode substrate, electrolyte layer enclosed with space enclosed with electrode substrate, counter electrode substrate and sealing material.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of dye-sensitized solar cell.    Transparent substrate (1)    Transparent conductive layer (2)    Sealing material (6)    Electrolyte solution (7)    Opposing substrate (8)    Conductive layer (9)    Transparent electrode substrate (10)    Counter electrode substrate (20)    Dye-sensitized solar cell (100)