Record material
US5030281A · kind A · utility
7Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/3335
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color developer material comprising a homogeneous mixture of a color developer containing a certain weight percent phenolic group, divalent zinc, and an aromatic carboxylate component possessing certain properties. These mixtures are particularly useful as color developer materials for basic chromogenic materials in either pressure-sensitive or heat-sensitive record materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.