Photochromic article

Details Photochromic article Photochromic article

1988-12-06

1990-03-20

Gron, Teddy S.

Compositions

Light transmission modifying compositions

Displaying color change

252589, 252600, 544 71, 350354, G02B 523

Patent

active

049099639

ABSTRACT:
Described are photochromic spiro(indoline)benzoxazine compounds having substituents on the benzoxazine portion of the compound, and their use in plastic hosts to impart a photochromic response thereto.

REFERENCES:
patent: 3407145 (1968-10-01), Brule
patent: 3562172 (1972-02-01), Ono et al.
patent: 3578602 (1971-05-01), Ono et al.
patent: 3843550 (1974-10-01), Hinnen
patent: 3980480 (1976-09-01), Laridon
patent: 4215010 (1980-07-01), Hovey et al.
patent: 4289497 (1981-09-01), Hovey
patent: 4342668 (1982-08-01), Hovey et al.
patent: 4440672 (1984-04-01), Chu
patent: 4634767 (1987-01-01), Hoelscher et al.
patent: 4636561 (1987-01-01), Hosoda
patent: 4637698 (1987-01-01), Kwak et al.
Arnold et al, Tetrachedron, 27(1971), pp. 1699-1713, "Spektroskopische strukturuntersuchunger . . .".
Balli et al, Chemical Abstracts, 95:80769g (1981).
Techniques of Chemistry, vol. III, Photochromism, G. H. Brown, Ed., Chapter 3 by Robert C. Bertelson, pp. 44-49, 54, 92, and 415, Wiley-Interscience, New York (1971).
Organic Synthesis, Collective Volume I, Henry Gilman, Ed., John Wiley and Sons, Inc., N.Y., 1932, pp. 411-412.
"A New Chemical Reaction with the Nitrosyl Radical NOH", O. Baudisch, Science, vol. 92, pp. 336-337 (1940).
"Preparation of o-Nitrosophenols from Benzene or Other Aromatic Hydrocarbons at Room Temperature", O. Baudisch, J. Amer. Chem. Soc., 63, 622 (1941).
"o-Nitrosophenols I.", G. Cronheim, J. Org. Chem., 12, pp. 1-7 (1947).
"o-Nitrosophenols II.", G. Cronheim, J. Org. Chem., 12, pp. 7, 14, 17-18 (1947).

Affiliated with

Also associated with

Rating

Photochromic article 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 article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photochromic article will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-791150