Heat-sensitive recording material
US6017672A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1998 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Sep 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heat-sensitive recording material having formed on a support a heat-sensitive recording layer containing a diazonium salt and a coupling component, wherein the diazonium salt is a compound represented by the following formula (1): ##STR1## wherein R.sup.1 represents an alkyl group or an aryl group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each independently represents a hydrogen atom or an alkyl group, at least one of R.sup.2, R.sup.3, R.sup.4, and R.sup.5 represents an alkyl group, and R.sup.2 and R.sup.3, or R.sup.4 and R.sup.5, or R.sup.1 and R.sup.3, or R.sup.1 and R.sup.4, may combine with each other to form a ring; and X.sup.- represents an anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.