Thermographic recording materials and coating composition therefor
US4904572A · kind A · utility
15Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to the use of 3,5-dihydroxybenzoic acid as an organic acidic reagent in thermographic recording materials comprising a di- or triarylmethane thiolactone dye precursor, silver behenate and a polymeric binder, and in a further embodiment, relates to coating compositions useful in the preparation of the recording materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.