Method for polymerizing contact lenses having UV absorbing prope

Details Method for polymerizing contact lenses having UV absorbing prope Method for polymerizing contact lenses having UV absorbing prope

1998-05-15

1999-08-31

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, C08F22606, G02C 704

Patent

active

059454652

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; exposing the monomer mixture in the mold to a light source including ultraviolet light to cure the monomer mixture and form the lens, whereby the non-UV-absorbing compound converts to a UV-absorbing agent.

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Dr. R. Olson, "UV Absorber Progenitors: Photo-Fries Rearrangements of Sulfonate Esters of Hydroxyphenylbenzotriazoles", Journal of Applied Polymer Science, vol. 28, 1159-1165 (1983).
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