Patent ID: 6287656
Filing Date: 2001-09-11
Classification: A61L,C08G,C08J,Y10T

Abstract:
A medical device having improved resistance to lipids, said device prepared from an amorphous copolyester, wherein the amorphous copolyester is the reaction product of a diol component and a dicarboxylic acid component, wherein the diol component comprises residues of from about 5 to about 50 mole % of 2,2'-(sulfonylbis(4,1-phenyleneoxy))-bis(ethanol) and from about 50 to about 95 mole % of a mixture of at least two diols selected from the group consisting of ethylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, and mixtures thereof; and the dicarboxylic acid component comprises residues of at least one compound selected from group consisting of terephthalic acid, isophthalic acid, 1,4-cyclohexandedicarboxylic acid, 2,6-naphthalene dicarboxylic acid, anhydrides thereof, acid chlorides thereof, lower alkyl esters thereof, and mixtures thereof.