Compositions – Light transmission modifying compositions – Displaying color change
Patent
1995-10-13
1997-07-08
Chan, Nicky
Compositions
Light transmission modifying compositions
Displaying color change
549382, 549362, 549337, 549 60, 549 58, 548526, 548525, 548518, 548454, 546197, 546196, 546194, 546167, 5462807, 5462841, 5462811, 544150, 544148, 544124, 524110, 524104, 524 99, 524 87, C08K 515, G02B 523, C07D31178, C07D40504
Patent
active
056457677
ABSTRACT:
Described are novel photochromic indeno-fused naphthopyran compounds, examples of which are naphthopyran compounds having a substituted or unsubstituted indeno group, the 2,1 positions of which are fused to the f side of the naphtho portion of the naphthopyran, and certain substituents at the 3-position of the pyran ring. Certain substituents may also be present at the number 5, 6, 7, 8, 9, 10, 11, 12, or 13 carbon atoms of the compounds. These compounds may be represented by the following graphic formula: ##STR1## Also described are polymeric organic host materials that contain or that are coated with such compounds. Optically clear articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., certain other naphthopyrans, benzopyrans, and spiro(indoline)type compounds, are also described.
REFERENCES:
patent: 3562172 (1971-02-01), Ono et al.
patent: 3567605 (1971-03-01), Becker
patent: 3578602 (1971-05-01), Ono et al.
patent: 3627690 (1971-12-01), Casella et al.
patent: 4215010 (1980-07-01), Hovey et al.
patent: 4342668 (1982-08-01), Hovey et al.
patent: 4563458 (1986-01-01), Widdig et al.
patent: 4637698 (1987-01-01), Kwak et al.
patent: 4720356 (1988-01-01), Chu
patent: 4816584 (1989-03-01), Kwak et al.
patent: 4818096 (1989-04-01), Heller et al.
patent: 4826977 (1989-05-01), Heller et al.
patent: 4880667 (1989-11-01), Welch
patent: 4931219 (1990-06-01), Kwiatkowski et al.
patent: 4931221 (1990-06-01), Heller et al.
patent: 5066818 (1991-11-01), Van Gemert
patent: 5238981 (1993-08-01), Knowles
patent: 5244602 (1993-09-01), Van Gemert
patent: 5274132 (1993-12-01), Van Gemert
patent: 5369158 (1994-11-01), Knowles
patent: 5384077 (1995-01-01), Knowles
patent: 5395567 (1995-03-01), Van Gemert et al.
patent: 5405958 (1995-04-01), Van Gemert et al.
patent: 5429774 (1995-07-01), Kumar
patent: 5451344 (1995-09-01), Knowles et al.
patent: 5458814 (1995-10-01), Kumar et al.
patent: 5466398 (1995-11-01), Van Gemert et al.
patent: 5514817 (1996-05-01), Knowles
Friedel-Crafts and Related Reactions, George A. Olah, Interscience Publishers, vol. 3, Chap. XXXI, pp. 1-8, 1964.
"Regioselective Friedel Crafts Acylation of 1,2,3,4-Tetrahydroquinoline and Related Nitrogen Heterocycles; Effects of NH Protective Groups and Ring Size", Ishihara, Y., et al, J. Chem. Soc., Perkin Trans. 1, pp. 3401-3406, 1992.
"1-Phenylnaphthalenes. part IV. The Cyclisation of Methyl Hydrogen cis and trans-.gamma.-o-Methoxyphenyl- and Ethyl Hydrogen cis-- and trans-.gamma.-p-Methoxyphenyl-.gamma.-phenylitaconate to the Corresponding 1-Phenylnaphthalenes", Baddar, F.G. et al., Journal of the Chemical Society, pp. 986-994, 1958.
"Behavior of .alpha.-Substituted Chalcones on Attempted Friedel-Crafts Arylation", Koelsch, C.F., The Journal of Organic Chemistry, vol. 26, pp. 2590-2592, 1961.
The Chemistry of the Carbonyl Group, Saul Patai, Editor, Interscience Publishers, Chapter 11, pp. 507-566, 1966.
Chan Nicky
Mallak Frank P.
Stein Irwin M.
Transitions Optical Inc.
LandOfFree
Photochromic indeno-fused naphthopyrans does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photochromic indeno-fused naphthopyrans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photochromic indeno-fused naphthopyrans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2407369