Coating methods
First Claim
Patent Images
1. A method of coating a surface, the method comprising the steps of;
- a) mixing a coating composition comprising at a poly(ethylene) glycol, hexamethylene diisocyanate, dichloromethane, dibutyltin dilaurate, and optionally at least one additional compound having at least two isocyanate groups, wherein the coating composition is biocompatible;
b) polymerizing the coating composition to form a polymerized coating composition;
c) creating an active surface on at least two sides of the surface by introducing nucleophilic functional groups onto the surface, wherein the creating step is accomplished using argon or oxygen plasma;
d) forming a coated surface by maintaining the active surface in the polymerized coating composition for at least about 90 seconds, wherein the polymerized coating composition is deposited directly onto both sides of the active surface without a primer base coat; and
e) curing the coated surface.
6 Assignments
0 Petitions
Accused Products
Abstract
Described herein are methods of coating both metallic and polymeric surfaces adding hydrophilicity comprising the steps mixing a coating composition comprising at least one polyol, at least one compound having at least two isocyanate groups, and an organic solvent; introducing nucleophilic functional groups on the surface thereby creating an active surface; subjecting the active surface to the coating composition thereby forming a coated surface; and curing the coated surface. Medical devices, for example, implantable medical devices can be coated by the methods described herein.
27 Citations
19 Claims
-
1. A method of coating a surface, the method comprising the steps of;
-
a) mixing a coating composition comprising at a poly(ethylene) glycol, hexamethylene diisocyanate, dichloromethane, dibutyltin dilaurate, and optionally at least one additional compound having at least two isocyanate groups, wherein the coating composition is biocompatible; b) polymerizing the coating composition to form a polymerized coating composition; c) creating an active surface on at least two sides of the surface by introducing nucleophilic functional groups onto the surface, wherein the creating step is accomplished using argon or oxygen plasma; d) forming a coated surface by maintaining the active surface in the polymerized coating composition for at least about 90 seconds, wherein the polymerized coating composition is deposited directly onto both sides of the active surface without a primer base coat; and e) curing the coated surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 19)
-
-
8. A method of coating a surface comprising the steps;
maintaining the surface in a coating composition for at least about 90 seconds after the coating composition has polymerized, wherein the coating composition is biocompatible, comprises a polymerized reaction product of poly(ethylene) glycol, hexamethylene diisocyanate, dichloromethane, dibutyltin dilaurate, and optionally at least one additional compound having at least two isocyanate groups, and is deposited directly onto at least two sides of the surface without a primer base coat, and wherein the surface has been treated with argon or oxygen plasma. - View Dependent Claims (9, 10, 11, 12)
-
13. A method of coating an implantable medical device surface comprising the steps of:
-
a) providing an implantable medical device; b) mixing a coating composition comprising poly(ethylene) glycol, hexamethylene diisocyanate, dichloromethan, dibutyltin dilaurate, and optionally at least one additional compound having at least two isocyanate groups; c) polymerizing the coating composition to form a polymerized coating composition; d) creating an active surface by argon or oxygen plasma treating the implantable medical device surface; e) forming a coated surface by maintaining the active surface in the polymerized coating composition for at least about 90 seconds, wherein the polymerized coating composition is deposited directly onto the active surface without a primer base coat; f) curing the coated surface; and g) forming a coated implantable medical device. - View Dependent Claims (14, 15, 16, 17, 18)
-
Specification