Demand and timed renewing imaging media
US4299880A · kind A · utility
44Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1979 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Nov 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/259
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Microvoid-containing sheet material of the type which displays visible indicia when a liquid applied to the surface fills the microvoids. The improvement lies in making the liquid-receiving surface from particles held in pseudo-sintered juxtaposition by a thermoset binder, thereby rendering the structure resistant to inadvertent marking when it is subjected to heat, pressure, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.