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Ophthalmic lenses and compositions and methods for producing same

  • US 6,617,373 B2
  • Filed: 12/13/2001
  • Issued: 09/09/2003
  • Est. Priority Date: 04/18/2000
  • Status: Expired due to Term
First Claim
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1. A composition comprising:

  • a first crosslinked polymer material, the first crosslinked polymer material swelled with water; and

    a second polymeric material, other than the first crosslinked polymer material and polyacrylic acid, selected from the group consisting of water soluble polymeric materials, water swellable polymeric materials and mixtures thereof, the second polymeric material being physically immobilized by the first crosslinked polymer material.

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