Thermosensitive coloring composition and reversible thermosensitive recording medium using same
US5703005A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/305
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermosensitive coloring composition is disclosed which includes a coloring agent and a color developer of the formula: ##STR1## wherein R.sup.1 represents hydrogen, a halogen, a hydroxyl group, an alkyl group or an alkoxy group, R.sup.2 represents a C.sub.1-8 aliphatic hydrocarbon group, A represents a divalent aliphatic hydrocarbon group, B represents a substituted or non-substituted aromatic or aliphatic divalent group, Y and Z each represent a hetero atom-containing divalent group, n is an integer of 1-3 and p and q are each an integer of 0 or 1. A reversible thermosensitive recording medium includes a support and a thermosensitive layer of the above coloring composition formed thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.