Photolithographic developing composition with organic lithium co

Details Photolithographic developing composition with organic lithium co Photolithographic developing composition with organic lithium co

1972-11-02

1979-04-03

Bowers, Jr., Charles L.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 33, 96 48R, 96 66R, 961145, 96 48PD, 101456, 101465, 101466, 252351, 252352, 252353, 252356, 252358, G03C 534, G03F 708

Patent

active

041475453

ABSTRACT:
A developer composition for photosensitive coatings on substrates, particularly lithographic printing plates sensitized with substantially water-insoluble diazonium compounds, which is comprised of an aqueous solution of a substantially water-soluble organo-lithium salt, e.g., lithium naphthenate, lithium benzoate, lithium ricinoleate, etc. The novel developers quickly remove unexposed areas of the plate and yet do not detrimentally dissolve the exposed areas of the plate.

REFERENCES:
patent: 2512435 (1950-06-01), Mitchell et al.
patent: 2657140 (1953-10-01), Kessels
patent: 2660568 (1953-11-01), Cunder et al.
patent: 3091533 (1963-05-01), Hodgins
patent: 3113026 (1963-12-01), Sprung
patent: 3471289 (1969-10-01), Herrick
patent: 3637384 (1972-01-01), Deutsch
patent: 3660097 (1972-05-01), Mainthia
patent: 3679419 (1972-07-01), Gillich
patent: 3751257 (1973-08-01), Dahlman
patent: 3762925 (1973-10-01), Nittel
patent: 3905815 (1975-09-01), Bonhon
Windholz, M., Ed., "The Merck Index", 9th Ed., 1976, p. 5361 and p. 8330.
Grant, J., "Hackh's Chemical Dictionary", 4th Ed., 1969, pp. 392-393.

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