Surface modification of polymer objects
First Claim
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1. A surface-modified contact lens prepared by adding a polymerizable surfactant to a monomer mix used to form the contact lens.
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Abstract
A method of modifying the surfaces of the polymeric objects by adding a polymerizable surfactant to the monomer mix used to form the object. Also disclosed are surface-modified objects prepared by this method, which is particularly suited for modifying the surfaces of contact lenses.
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Citations
27 Claims
- 1. A surface-modified contact lens prepared by adding a polymerizable surfactant to a monomer mix used to form the contact lens.
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2. A surface-modified polymeric object prepared by adding a polymerizable surfactant to a monomer mix used to form the polymeric object, wherein the polymerizable surfactant is a surface active macromonomer described by the formula:
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space="preserve" listing-type="equation">DC(A.sub.x B.sub.y)wherein A is a monomer unit derived from at least one ethylenically unsaturated hydrophilic monomer, B is a monomer unit derived from at least one ethylenically unsaturated hydrophobic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range of about 0.1 to about 0.9, and x+y=1.
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Specification