Two-component diazotype material with diazonium salt with anion of benzene or toluene sulfonate
US4590143A · kind A · utility
2Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Feb 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a two-component diazotype material comprising a support and a light-sensitive layer containing (a) at least one diazonium compound derived from p-phenylenediamine and carrying a basic heterocyclic radical in the 4-position and ether groups in the 2- and 5-positions, (b) a coupler component, and (c) an acid stabilizer, the diazonium compound being present in the form of a benzenesulfonate or toluenesulfonate. The disclosed materials have a good storability and are easily developed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.