<；P>；PROBLEM TO BE SOLVED: To substitute a resin that is used for coating a biologically active substance-containing granular material with an easily decomposable resin. <；P>；SOLUTION: The coated granular material is obtained by coating a biologically active substance-containing granular material with a urethane resin which is obtained by reacting an aromatic polyisocyanate, a polyester polyol (preferably a polycaprolactone polyol) having in the molecule an oxy-carbonyl [-O-C(=O)-] partial structure at a rate of at least 15% (converted into weight), and a 10-24C hydroxy fatty acid (preferably 12-hydroxystearic acid). <；P>；COPYRIGHT: (C)2008,JPO&INPIT
