Photochromic compounds

Details Photochromic compounds Photochromic compounds

1977-10-27

1980-09-02

Demers, Arthur P.

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Developing latent image using radiant energy or heat

2603265SM, 2603265D, 2603268, 26032655A, 430 19, 430339, 542441, 542442, 549 58, 549 60, G03C 1733, C07D40506

Patent

active

042207088

ABSTRACT:
Photochromic compounds are disclosed which are 3-furyl or 3-thienyl alkylidene succinic anhydrides or the corresponding succinimides. The compounds undergo reversible photocyclization on exposure to U.V. light in high yield and their cyclic forms are deeply colored making them suitable for a wide range of recording and display devices.

REFERENCES:
patent: 3660385 (1972-05-01), Albrecht
Deohra et al, Chem. Abst. 62(1965), #7714(d).

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