초록 ▼

An antithrombogenic, highly elastic polyurethane compound produced by the reaction of a polyether diol with a diisocyanate and a diamine, which polyurethane compound is characterized by said polyether diol being a compound of the general formula: [Figure] wherein, a, b, and c each denote a positive

An antithrombogenic, highly elastic polyurethane compound produced by the reaction of a polyether diol with a diisocyanate and a diamine, which polyurethane compound is characterized by said polyether diol being a compound of the general formula: [Figure] wherein, a, b, and c each denote a positive integer and having a polyoxyethlene content in the range of from 10 to 50 weight percent and an average molecular weight in the range of from 500 to 5,000.

대표청구항 ▼

An antithrombogenic, highly elastic, uncrosslinked polyurethane compound produced by the reaction of a polyether diol of the general formula: [Figure] wherein, a, b, and c each denote a positive integer, having a polyoxyethylene content in the range of from 10 to 50 weight percent and an average mol

An antithrombogenic, highly elastic, uncrosslinked polyurethane compound produced by the reaction of a polyether diol of the general formula: [Figure] wherein, a, b, and c each denote a positive integer, having a polyoxyethylene content in the range of from 10 to 50 weight percent and an average molecular weight in the range of from 500 to 5,000, with 1.5 to 4 mols of a diisocyanate per mol of said polyether diol to give a prepolymer followed by reacting said prepolymer with 0.5 to 3 mols of a diamine per mol of said polyether diol to give said uncrosslinked polyurethane. A method for the manufacture of an antithrombogenic film to be deposited as a coating on the surface of a device, which comprises dissolving in a solvent an antithrombogenic, highly elastic, uncrosslinked polyurethane compound produced by the reaction of a polyether diol of the general formula: [Figure] wherein, a, b, and c each denote a positive integer, having a polyoxyethylene content in the range of from 10 to 50 weight percent and an average molecular weight in the range of from 500 to 5,000, with 1.5 to 4 mols of a diisocyanate per mol of said polyether diol to give a prepolymer followed by reacting said prepolymer with 0.5 to 3 mols of a diamine per mol of said polyether diol to give uncrosslinked polyurethane, and applying the resultant solution to the surface of a device.