Abstract: A photopolymerizable radiation-sensitive resin composition comprising a styrene-maleic acid copolymeric resin as well as an ethylenically unsaturated compound and a photopolymerization initiator is disclosed. A radiation-sensitive sheet material comprising a support (10) having coated thereon a layer (11) of the photopolymerizable radiation-sensitive resin composition is also disclosed. The composition and sheet material disclosed herein can be conveniently used particularly in the preparation of various cards such as credit cards, banking or cash cards and the like.TECHNICAL FIELDThe present invention relates to a photopolymerizable radiation-sensitive resin composition and a radiation-sensitive sheet material comprising a layer of such composition.