Photochromic polymerizable compositions

Details Photochromic polymerizable compositions Photochromic polymerizable compositions

2006-02-14

2006-02-14

Sellers, Robert E.L. (Department: 1712)

Compositions

Light transmission modifying compositions

Displaying color change

C359S241000, C430S495100, C430S962000

Reexamination Certificate

active

06998072

ABSTRACT:
Described is a polymerizable composition of a photochromic amount of at least one photochromic compound, at least one material having at least one carbonate group and at least one hydroxyl group, and at least one monoisocyanate containing material having at least one unsaturated group. The polymerizable composition optionally contains copolymerizable monomers. Also described are photochromic polymerizates, e.g., photochromic optical elements such as ophthalmic lenses, prepared from the polymerizable composition of the present invention.

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