Photochromic compounds and photosensitive compositions containin

Details Photochromic compounds and photosensitive compositions containin Photochromic compounds and photosensitive compositions containin

1983-12-23

1986-01-21

Kight, John

Radiation imagery chemistry: process, composition, or product th

Radiation-chromic compound

549 24, 549 25, G03C 152, G03C 1733

Patent

active

045657793

ABSTRACT:
Novel photochromic compounds are disclosed, which compounds are represented by the general formula ##STR1## in which R.sub.1 represents an alkyl group having 1 to 20 carbon atoms, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a halogen atom, a nitro group, a cyano group or a dimethylamino group, and R.sub.6, R.sub.7 and R.sub.8 independently represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or a halogen atom, and correspondingly 97 to 50 wt % of a film-forming polymer. Photosensitive compositions and materials comprising the compounds are also described.

REFERENCES:
patent: 4237207 (1980-12-01), Ceintrey
patent: 4485168 (1984-11-01), Arakawa et al.

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