Compositions – Light transmission modifying compositions – Displaying color change
Patent
1997-10-23
1998-09-22
Tucker, Philip
Compositions
Light transmission modifying compositions
Displaying color change
549298, 549383, 549 43, 549 58, 549264, 549330, 546165, 5462827, 5462804, 5462811, 548463, G02B 523, C07D31104
Patent
active
058110348
ABSTRACT:
Described are novel 7-methylidene-5-oxo-furo fused naphthopyran compounds having certain substituents at the 2 position of the pyran ring. Also described are polymeric organic host materials that contain or that are coated with such compounds.
REFERENCES:
patent: 3361706 (1968-01-01), Meriwether et al.
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: 4360653 (1982-11-01), Stevens et al.
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: 4994205 (1991-02-01), McBain et al.
patent: 5066818 (1991-11-01), Van Gemert et al.
patent: 5200483 (1993-04-01), Selvig
patent: 5238981 (1993-08-01), Knowles
patent: 5274132 (1993-12-01), Van Gemert
patent: 5373033 (1994-12-01), Toh et al.
patent: 5384077 (1995-01-01), Knowles
patent: 5405958 (1995-04-01), Van Gemert
patent: 5429774 (1995-07-01), Kumar
patent: 5458814 (1995-10-01), Kumar et al.
patent: 5475074 (1995-12-01), Matuoka et al.
patent: 5514817 (1996-05-01), Knowles
patent: 5552090 (1996-09-01), Van Gemert et al.
patent: 5552091 (1996-09-01), Kumar
patent: 5565147 (1996-10-01), Knowles et al.
patent: 5573712 (1996-11-01), Kumar et al.
patent: 5578252 (1996-11-01), Van Gemert et al.
patent: 5645767 (1997-07-01), Van Gemert
Hattori et al., "Facile Construction of the 1-Phenylnaphthyl Skeleton via an Ester-mediated Nucleophilic Aromatic Substitution Reaction. Applications to the Synthesis of Phenylnaphthalide Lignans", J. Chem. Soc. Perkin Trans. 1, 1995, pp. 235-241.
Hattori et al., "Practical Synthesis of 4'-Methylbiphenyl-2-carboxylic Acid", Synthesis, 1995, pp. 41-43.
Larock et al., "Synthesis of Unsaturated Lactones via Palladium-Catalyzed Cyclization of Alkenoic Acids", J. Org. Chem., vol. 58, 1993, pp. 5298-5300.
Mallak Frank P.
PPG Industries Inc.
Stein Irwin M.
Tucker Philip
LandOfFree
7-methylidene-5-oxo-furo 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 7-methylidene-5-oxo-furo fused naphthopyrans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 7-methylidene-5-oxo-furo fused naphthopyrans will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1619812