PURPOSE: To obtain a molded article of gas slowly releasing resin capable of maintaining action effect on gas generation for many hours, having excellent control of the amount of the gas generated and use efficiency, by using a curable resin composition prepared by adding an inorganic substance to generate a gas by reaction with water to a specific compound.
CONSTITUTION: This curable resin composition comprises (A) 1-90 pts.wt. of an inorganic substance to generate a gas by reaction with water, (B) 10-99 pts.wt. of at least one compound containing at least one (meth)acryloyl group in the molecule and (C) 0.001-5 pts.wt. (with the proviso that the total of the components A to C is 100 pts.wt.) of a polymerization initiator. The curable resin composition is formed into a prescribed shape, radically polymerized and cured to give a molded article of gas slowly releasing resin. An adduct of sodium carbonate with hydrogen peroxide may be cited as the inorganic substance to generate an oxygen gas of the component A and sodium hydrogencarbonate as the inorganic substance to generate a carbon dioxide gas.
MIZOBUCHI TSUKASA
IKEI KIYOAKI
