Process for the coating of biomedical articles
First Claim
1. A process for the hydrophilic coating of a biomedical article, comprising:
- treating the biomedical article for a time period of ≦
5 minutes with a solution of an organic solvent comprising a polyanionic compound with a number average molecular weight Mn of >
5000, wherein the solution comprises less than 20% by weight of water, and wherein the solution is devoid of a cationic polymer.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a process for the manufacture of a hydrophilic coating on a biomedical article, which comprises treating the biomedical article for a time period of ≦5 minutes with a solution of an organic solvent comprising a polyanionic compound with a number average molecular weight Mn of >5000, wherein the solution comprises less than 10% by weight of water, and wherein the solution is devoid of a cationic polymer. The coated biomedical articles obtainable by the process of the invention have desirable characteristics regarding adherence to the substrate, durability, hydrophilicity, wettability, biocompatibility and permeability and are thus especially useful in the field of ophthalmic devices.
86 Citations
13 Claims
-
1. A process for the hydrophilic coating of a biomedical article, comprising:
- treating the biomedical article for a time period of ≦
5 minutes with a solution of an organic solvent comprising a polyanionic compound with a number average molecular weight Mn of >
5000, wherein the solution comprises less than 20% by weight of water, and wherein the solution is devoid of a cationic polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- treating the biomedical article for a time period of ≦
Specification