Silver halide emulsions for recording electron rays

Details Silver halide emulsions for recording electron rays Silver halide emulsions for recording electron rays

1975-03-20

1976-10-26

Brown, J. Travis

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

96137, 250475, 346 1, B05D 306

Patent

active

039885135

ABSTRACT:
A silver halide emulsion for recording electron rays which comprises a silver halide emulsion containing silver halide grains having an average particle size below 0.2 microns and at least one sensitizing dye represented by the following formula: ##SPC1##
Wherein Z.sub.1 represents a group of atoms necessary to form a benzene ring or naphthalene ring, said benzene or naphthalene ring being substituted or unsubstituted, Z.sub.2 represents a group of atoms necessary to form a 5-member or 6-member heterocyclic nucleus, R.sub.1, R.sub.2 and R.sub.3 each represents an alkyl group, a substituted alkyl group or an aryl group, L.sub.1, L.sub.2 and L.sub.3 each represents a methine group or a substituted methine group, said R.sub.1 and L.sub.1, R.sub.2 and L.sub.1 or R.sub.3 and L.sub.3 may be linked by an alkylene group, m and n each represents 1 or 2, X represents an acid anion, and p represents 1 or 2, is disclosed.

REFERENCES:
patent: 3303341 (1967-02-01), Fram et al.
patent: 3706566 (1972-12-01), Shiba et al.
patent: 3706570 (1972-12-01), Nakazawa et al.
patent: 3826656 (1974-07-01), Jenkins et al.

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