Metallic ester acrylic compositions capable of releasing bioactive substance at a controlled rate

摘要

A bioactive substance control-releasing resinous composition comprising a resin having main chain and side chains, at least one side chain bearing at the end portion thereof an organic acid moiety having a biological activity, through a metal ester bonding. The resin is hydrolyzed in an ionic atmosphere at a controlled rate to generate a bioactive substance as well as metal ions and is useful in various fields and especially as a resinous vehicle for a coating composition.