Contact lenses and materials and methods of making same

Details Contact lenses and materials and methods of making same Contact lenses and materials and methods of making same

G - Physics

02

B

18/106, 26/197,

G02B 1/04 (2006.01) B29D 11/00 (2006.01) C08F 265/00 (2006.01) C08F 275/00 (2006.01) C08F 291/00 (2006.01)

Patent

CA 1318446

ABSTRACT OF THE DISCLOSURE An interpenetrating network copolymer, method of producing same, and method of producing optical lens blanks and finished lenses therefrom. The method broadly involves the preparation of first and second mixtures of polymerizable vinyl monomers and interrupting the polymerization of the first mixture at a relative viscosity of from about 1.05 to about 10 by admixing the partially polymerized first mixture with the second mixture to create a casting solution and thereafter, when desired, polymerizing molded casting solution in heat to create a solid lens material.

601116

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