Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1981-06-29
1983-02-08
Louie, Jr., Won H.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430541, 430495, 252182, 544216, 544353, G03C 524
Patent
active
043730213
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).
Fletcher George L.
Wadsworth Donald H.
Eastman Kodak Company
Louie, Jr. Won H.
Schmidt Dana M.
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