Waterproof receiver sheet for toner images
US5902673A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Mar 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner image receiver sheet for electrophotography comprises a substantially opaque substrate of microporous material and, disposed on at least one surface of the substrate, a substantially water-impervious toner image-receiving layer comprising a thermoplastic organic polymer. The microporous material of the substrate comprises a matrix of substantially water-insoluble organic polymer in which is distributed finely divided substantially water-insoluble filler particles that are at least 50 weight percent siliceous particles and constitute about 40 to 90 weight percent of the microporous material. A network of interconnecting pores communicating throughout the microporous material constitutes about 35 to 95 volume percent of the microporous material. On at least one surface of the substrate is disposed a substantially water-impervious toner image-receiving layer comprising a thermoplastic organic polymer. The toner image receiver sheet is substantially impervious to water and has a volume resistivity of about 1.times.10.sup.8 ohm-cm to 1.times.10.sup.13 ohm-cm, preferably about 1.times.10.sup.10 ohm-cm to 1.times.10.sup.12 ohm-cm. In a process for forming the just-described toner …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.