Surface coating of polymer objects
First Claim
Patent Images
1. A method of modifying the surface of a polymeric object which comprises immersing the polymeric object in an aqueous dispersion of a surface active macromer described by the formula:
- DC wherein A is at least one ethylenically unsaturated hydrophobic monomer, B is at least one ethylenically unsaturated hydrophilic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1, a hydrophobic cross-linking agent, and a free radical initiator and exposing the immersed polymeric object to ultraviolet light to form a permanent, cross-linked surface coating on the polymeric object.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of modifying surfaces of polymeric objects which comprises immersing the polymeric object in an aqueous dispersion of a polymerizable surfactant, a cross-linking agent, and a free radical initiator and exposing the immersant to ultraviolet light to form a permanent, cross-linked surface coating on the object. Also disclosed are coated objects prepared by this method, which is particularly suited for coating contact lenses.
275 Citations
33 Claims
-
1. A method of modifying the surface of a polymeric object which comprises immersing the polymeric object in an aqueous dispersion of a surface active macromer described by the formula:
- DC wherein A is at least one ethylenically unsaturated hydrophobic monomer, B is at least one ethylenically unsaturated hydrophilic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1, a hydrophobic cross-linking agent, and a free radical initiator and exposing the immersed polymeric object to ultraviolet light to form a permanent, cross-linked surface coating on the polymeric object.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
32. A surface-modified polymeric object prepared by immersing the polymeric object in an aqueous dispersion of a surface active macromer described by the formula:
- DC wherein A is at least one ethylenically unsaturated hydrophobic monomer, B is at least one ethylenically unsaturated hydrophilic monomer, C is a functional claim transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1, a hydrophobic cross-linking agent, and a free radical initiator and exposing the immersed polymeric object to ultraviolet light to form a permanent, cross-linked surface coating on the polymeric object.
- View Dependent Claims (33)
Specification