Indolizinone dyes and compositions, elements and methods using s

Details Indolizinone dyes and compositions, elements and methods using s Indolizinone dyes and compositions, elements and methods using s

1982-11-22

1984-05-22

Louie, Jr., Won H.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

430374, 430541, 430495, 544216, 544353, C09K 300, G03C 524

Patent

active

044500939

ABSTRACT:
There are disclosed dyes, compositions, imaging elements, and methods of forming images, wherein cyclopropenones are reacted with di- or tri-halogenated compounds in the presence of pyridine to form said dyes. In areas exposed to activating radiation, the cyclopropenone decomposes and prevents the dye reaction from occurring.

REFERENCES:
patent: 4128422 (1978-12-01), Fletcher et al.
Canadian J. of Chem., vol. 49, pp. 1165-1175, (1971).

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