Thermally-responsive record material
US4675707A · kind A · utility
0Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3335
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material and certain acidic developer material. Record material comprising this color-forming composition exhibits greatly improved background coloration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.