Thermal recording medium
US5811369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal recording medium comprising a substrate having thereon a recording layer containing a colorless or pale colored dye precursor, and a color developer reactable with the dye precursor to develop a color as main ingredients, wherein the color developer includes at least one compound of Formula (1): and the recording layer contains at least one methylolated fatty acid amide of Formula (2): ##STR1## (wherein X denotes oxygen atom or sulfur atom; and R denotes substituted or unsubstituted phenyl group, naphthyl group, aralkyl group, a lower alkyl group of 1 to 6 carbon atoms, a cycloalkyl group of 3 to 6 carbon atoms, or a lower alkenyl group of 2 to 6 carbon atoms. Z denotes a lower alkyl group of 1 to 6 carbon atoms or an electron attracting group. n is an integer from 0 to 4, and p is an integer from 1 to 5, satisfying n+p .ltoreq.5.). EQU R.sub.1 -CONHCH.sub.2 OH (2) (wherein R.sub.1 denotes an alkyl group of 11 to 21 carbon atoms).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.