Reversible heat sensitive recording composition
US4720301A · kind A · utility
93Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1985 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Dec 11, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A new reversible heat sensitive recording composition for erasable recording is disclosed which is used as a recording or marking material that is capable of erasure at a specific temperature so that coloring or decoloring can be controlled to occur at desired temperature ranges. This range or the hysteresis value of the composition is determined by the .DELTA.T value of the contained ester compound. In addition, the composition can provide a wide variety of hues and can readily be prepared. The marking or recording drawn in this composition can be maintained at room temperature or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.