Photochromic composition

Details Photochromic composition Photochromic composition

2007-01-30

2007-01-30

Harlan, Robert D. (Department: 1713)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C252S586000, C526S209000, C526S319000, C549S336000

Reexamination Certificate

active

10484349

ABSTRACT:
A photochromic composition and a coating composition comprising a molecular compound of a chromene compound and an aromatic compound. The photochromic composition provides a photochromic optical material as a cured product and the coating composition is applied to a lens substrate and cured to provide a photochromic optical material. The above molecular compound is also provided.

REFERENCES:
patent: 6719925 (2004-04-01), Breyne et al.
patent: 2001-11066 (2001-01-01), None
patent: 2001-114775 (2001-04-01), None
patent: 2002-161269 (2002-06-01), None
patent: WO 96/14596 (1996-05-01), None
patent: WO 97/4899 (1997-12-01), None
patent: WO 98/45281 (1998-10-01), None

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