Patent ID: 6238799
Filing Date: 2001-05-29
Classification: A61L,C08G,C08L,C09D,Y10T

Abstract:
A coated article, comprising:an article having a hydrophilic coating thereon, said coating comprising:a polyurethane polymer matrix, said polyurethane polymer having an equivalent weight of functional moiety pendant to the polyurethane backbone in the range of about 1000 to 2805 g/eq. and forming a three-dimensional network, said network consisting essentially of said polyurethane backbone and crosslinking bridges at said pendant functional moiety; anda hydrophilic polymer, said hydrophilic polymer associated with said polyurethane polymer matrix,the polyurethane polymer matrix having a crosslink density such that the coating retains slip for up to 24 hours in ambient aqueous medium.