ELECTRON RADIATION CURING RESIN COMPOSITION AND COMPOSITE SHEET MATERIAL PRODUCED BY USING THE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain an electron radiation curing resin composition giving a composite sheet material having excellent slipperiness and antiblocking property and high gloss by including a specific di(meth)acrylate oligomer in an electron radiation curing organic compound at a specific ratio. SOLUTION: The objective composition is produced by mixing 100 pts.wt. of an electron radiation curing organic compound with 10-90 pts.wt. of a di(meth) acrylate oligomer having a molecular weight of 450-5,000 and containing one or more >=8C straight-chain alkyl side chain structures (S-R) expressed by the formula [R is an >=8C straight-chain alkyl; S is a spacer unit; J is a bonding unit connecting one or more (meth)acryloyl-containing structures, a main chain skeleton and the straight-chain alkyl side chain structure (S-R)]. The oligomer can be produced by reacting a monomer or polymer constituting the main chain skeleton with a side chain unit precursor compound containing the group of the formula and a compound having (meth)acryloyl group.