Patent ID: 8685431

Claim:
A medical article comprising an implantable substrate having a coating, the coating including a polymeric product of a reaction between a first reagent and a third reagent and a reaction between a second reagent and a third reagent, wherein: (a) the first reagent is selected from a group consisting of compounds having formulae (1) and (2): (b) the second reagent is selected from a group consisting of compounds having formulae (5) and (6): (c) the third reagent is a dicarboxylic acid having the formula (9): wherein: R 1 is hydrogen, methyl, iso-propyl, sec-butyl; iso-butyl, or benzyl group; R 2 is methylene, methyl methylene, n-propylene, iso-propylene, ethylmethylene, n-butylene, iso-butylene, sec-butylene, or n-amylene group; R 3 is a straight chained or branched aliphatic alkylene group C n H 2n , wherein n is an integer between 2 and 12; PEG is poly(ethylene glycol); X is a straight chained or branched aliphatic alkylene group C n H 2n , wherein n is an integer between 2 and 12; and Y is a straight chained or branched aliphatic alkylene group C n H 2n , wherein n is 1, 2, or 5.