Abstract: The disclosed polymerizable compositions comprise a monomer or a mixture of hydrophilic monomers, as well as a crosslinking agent comprised of an oligomer or a mixture of urethane oligomers having a mole weight of between 500 and 5,000 and two to six (meth)acrylate functions. The invention can be used in the manufacture of contact lenses.
Type:
Grant
Filed:
October 13, 1998
Date of Patent:
January 23, 2001
Assignees:
Essilor International Compagnie Generale d'Optique, Sunsoft Corporation
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