Patent ID: 8323693

Claim:
An ointment external preparation for wounds for use in treatment of skin damages, comprising a sodium polyacrylate in an uncross-linked state of 2% or more based on the weight of the preparation, which is in sol state before use, and then simultaneously shows phase transition to gel after the preparation absorbs exudation in a wounded area of the skin, a crosslinking agent in an amount of from 0.01% to 20% based on the weight of the preparation, which is a polyvalent metal salt selected from the group consisting of an aluminum-containing cross-linking agent, a polyvalent metal chloride, a polyvalent metal bromide, a polyvalent metal oxide, a polyvalent metal salt of an organic acid, a polyvalent metal salt of a silicate, an aluminum-and-magnesium-containing compound, and a combination of at least two kinds thereof, an iodine-based bactericidal agent in an amount of from 0.1% to 10% based on the weight of the preparation, which is povidone iodine or iodine, a fluidization agent, and a sugar in an amount of from 5% to 70% based on the weight of the preparation, which is sucrose or a sugar having a therapeutic effect, wherein the sucrose is selected from the group consisting of refined sugar, granulated sugar and white soft sugar, and the sugar having a therapeutic effect selected from the group consisting of sorbitol, mannitol, fructose, glucose, xylitol, lactose, maltose, maltitol and trehalose, wherein the moisture content of the preparation is 3% or less based on the weight of the preparation, and the preparation has an ointment form before its use and protects the wound, by transformation from a sol to a gel during use, with easy separation of the gel substantially as a mass after its use.