Photochromic matrix compositions for use in ophthalmic lenses

Details Photochromic matrix compositions for use in ophthalmic lenses Photochromic matrix compositions for use in ophthalmic lenses

2005-03-08

2005-03-08

Metzmaier, Daniel S. (Department: 1712)

Compositions

Light transmission modifying compositions

Displaying color change

C359S241000, C351S162000, C351S163000, C523S135000, C524S095000, C524S104000, C524S110000

Reexamination Certificate

active

06863844

ABSTRACT:
Photochromic compositions are disclosed herein. The compositions comprise mixtures of methacrylate monomers, which when polymerized, provide a polymer matrix that exhibits improved fading characteristics of incorporated photochromic dyes and good photochromic temperature stability. The compositions are particularly useful as a composite layer on polymer-based ophthalmic lenses.

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