Phenolsulfonic acid aryl ester derivative, and heat-sensitive recording material using same
US8975212B2 · kind B2 · utility
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5References
16Claims
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Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Sep 16, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3335
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a phenolsulfonic acid aryl ester represented by formula (1)wherein each symbol is as defined in the description. The phenolsulfonic acid aryl ester is useful as a developer to provide a thermal recording material with good color-developing sensitivity, image density when printed at a low application energy (i.e., high start-up sensitivity), and heat and plasticizer resistance. The invention also provides a thermal recording material using the developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.