PURPOSE: To obtain a composition which can give a molding which can be freely colored and has a sufficient antistatic property, by adding a specified plasticizer, a phosphoric ester and an electrolyte to a copolymer of vinyl chloride with a monomer having a hydrophilic group and a reactive double bond.

CONSTITUTION: A resin composition prepared by adding a plasticizer of the formula, a phosphoric ester and an electrolyte to a copolymer of vinyl chloride with a monomer having a hydrophilic group and a reactive double bond in the molecule. Said resin composition can give an electroconductive floor sheet by laminating a first floor sheet comprising this composition with a second sheet made of a resin composition formed by adding at least one member selected from among carbon black, carbon fiber, metal powder and metal fiber to a rubber or a plastic and having an electric conductivity larger than that of the first sheet. This floor sheet can show a still more improved antistatic property and is useful for improving the appearance of a floor.