Hydrophilic surface modification of contact lenses
First Claim
1. In a method for modifying the surface of an article, said surface adapted for contact with living tissue of a human or non-human animal, by the gamma- or electron beam-irradiation induced polymerized, chemically grafted coating thereon of a hydrophilic monomer to form a hydrophilic graft polymer coating of the polymerized monomer or mixture of monomers, the improvement comprising conducting the gamma- or electron beam-irradiation induced graft polymerization in an aqueous solution containing a hydrophilic polymer under conditions whereby said hydrophilic polymer is at least partially entrapped in the graft polymerized coating.
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Abstract
An improved method for modifying the surface of an article, the surface adapted for contact with living tissue of a human or non-human animal, by the gamma- or electron beam-irradiation induced polymerized, chemically grafted coating thereon of a hydrophilic monomer to form a hydrophilic graft polymer coating of the polymerized monomer or mixture of monomers, the improvement comprising conducting the gamma- or electron beam-irradiation induced graft polymerization in an aqueous solution containing a hydrophilic polymer under conditions whereby the hydrophilic polymer is at least partially entrapped in the graft polymerized coating.
26 Citations
9 Claims
- 1. In a method for modifying the surface of an article, said surface adapted for contact with living tissue of a human or non-human animal, by the gamma- or electron beam-irradiation induced polymerized, chemically grafted coating thereon of a hydrophilic monomer to form a hydrophilic graft polymer coating of the polymerized monomer or mixture of monomers, the improvement comprising conducting the gamma- or electron beam-irradiation induced graft polymerization in an aqueous solution containing a hydrophilic polymer under conditions whereby said hydrophilic polymer is at least partially entrapped in the graft polymerized coating.
- 8. An article of manufacture comprising packaging material and an article having a surface adapted for contact with living tissue of a human or non-human animal contained within said packaging material, wherein said surface of said article has been modified to enhance contact with said living tissue, and wherein said packaging material comprises a label which indicates that said article is especially adapted for said contact.
Specification