Method for making contact lenses having UV absorbing properties

Details Method for making contact lenses having UV absorbing properties Method for making contact lenses having UV absorbing properties

1998-05-15

1999-06-22

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523107, 526261, 526316, 264 138, 264 25, 264 26, 351160R, C08F22606, G02C 704

Patent

active

059143550

ABSTRACT:
A method for preparing a lens having UV-absorbing properties involves charging to a mold a monomer mixture comprising lens-forming monomers and an essentially non-UV-absorbing compound, and curing the monomer mixture to form a lens, followed by treating the lens to convert the essentially non-UV-absorbing compound to a UV-absorbing agent.

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Dr. R. Olson, "UV Absorber Progenitors: Photo-Fries Rearrangements of Sulfonate Esters of Hydroxphenylbenzotriazoles", Journal of Applied Polymer Science, vol. 28, 1159-1165 (1983).
U.S. application No. 09/079,701, Lai, filed May 15, 1998.
U.S. application No. 09/079,781, Kunzer, filed May 15, 1998.

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