Photochromic imaging method

Details Photochromic imaging method Photochromic imaging method

1974-08-02

1976-06-08

Louie, Jr., Won H.

Gas separation: apparatus

Magnetic separating means

96 11, 96 1PC, 96 15, 96 27R, 96 48R, 96 48HD, 96 90PC, G03C 1300, B41M 518, G03C 524, G03G 1600

Patent

active

039619486

ABSTRACT:
An imaging method based upon visible light induced changes in a photochromic imaging layer containing a dispersion of at least one of the following compounds: ##SPC1##
Where a, b, c and d are independently selected from the group consisting of hydrogen, halogen, NO.sub.2, NH.sub.2, lower alkyl, phenyl, phenoxy, lower alkoxy, carboxy, hydroxyl, lower alkyl esters and aryl esters,
In an organic film forming binder.

REFERENCES:
patent: 3441410 (1969-04-01), Brynko
patent: 3445225 (1969-05-01), Brynko et al.
patent: 3450531 (1969-06-01), Amidon et al.
patent: 3451811 (1969-06-01), Brynko
Golden; J. Chem. Soc. pp. 3741-3748 (1961).

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