Method for preparing a coating composition for use to produce heat-sensitive record material
US4639270A · kind A · utility
12Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1983 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Jul 27, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A coating composition for use to produce heat-sensitive record material is produced by admixing and heating at least one colorless chromogenic material or acceptor and at least one heat fusible material having a melting point within the range of 60.degree. C. to 200.degree. C. to form a co-melt, atomizing the co-melt with a spray nozzle to form finely divided particles comprising the colorless chromogenic material or acceptor and the heat fusible material, and preparing a coating composition including said finely divided particles dispersed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.