RADIATION CURABLE RESIN COMPOSITIONS FOR ELECTRIC WIRE COATINGS

摘要

The present invention is a radiation curable resin composition comprising: (A) a urethane (meth) aerylate which is a reaction product of a polyol, a polyisocyanate, and a hydroxyl group-containing (meth) aerylate; (B) a compound having a cyclic structure and one ethylenically unsaturated group; (C) from about 0 to about 5 mass% of a compound having two or more ethylenically unsaturated group; and (D) a polyol having a number average molecular weight of about 1500 or more. In another embodiment of the invention component (A) must include a polyester polyol and the polyol of component (D) must have a number average molecular weight of from about 500 to about 1500. The composition is useful for coating electric wire.