Thermal recording material
US6432875B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3333
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal recording material includes a condensation reaction product of a carboxylic acid component (A) with a polyhydric alcohol component (B) in a thermal recording layer as an essential component, wherein the carboxylic acid component (A) includes (poly) 4-hydroxybenzoic acid represented by the following general formula (I) as an essential component and another monocarboxylic acid and/or dicarboxylic acid as an arbitrary component, and wherein the polyhydric alcohol component (B) includes a polyhydric alcohol which is a trihydric or more alcohol as an essential component and a dihydric low molecular-weight alcohol as an arbitrary component. wherein in the general formula(I), a letter p denotes an integer ranging from 0 to 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.