Process for image formation comprising a heating step
US4639408A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1985 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for forming an image comprising a heating step is described, wherein a photographic material is heated in the presence of a compound represented by formula (I) ##STR1## wherein X represents an atomic group completing a carbocyclic aromatic ring or a heterocyclic aromatic ring; R.sup.1 is selected from groups represented by formulae (A), (B), and (C) ##STR2## in which R.sup.11 and R.sup.12 each represents a substituted or unsubstituted alkyl group, a cycloalkyl group, a substituted or unsubstituted alkenyl group, an aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, an alkyloxy or aryloxy group, an alkylthio or arylthio group, or a substituted or unsubstituted amino group, or R.sup.11 and R.sup.12 together form a 5-membered or 6-membered ring; R.sup.2 represents a group selected from the groups represented by R.sup.11 ; R.sup.1 and R.sup.2 together form a 5-membered or 6-membered ring; Q represents a hydrogen atom, an alkyl group, or an aryl group; TIME represents a timing group; PUG represents a photographically useful group; and n represents 0 or an integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.