Silver halide emulsions for recording electron rays
US3988513A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Mar 20, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/143
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.