Method for electric recording
US4358474A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Jul 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electric recording material comprising PA1 (A) a semiconductive resin layer comprising a resin matrix and a conductivity-imparting agent dispersed therein and having a surface resistance of more than 1 ohm to less than 10.sup.5 ohms, PA1 (B) a metal-containing resin layer comprising a resin matrix and 5 to 60% by volume of a metal powder dispersed therein and having a surface resistance of 10.sup.5 to 10.sup.16 ohms, said metal-containing layer being laminated to one surface of said semiconductive resin layer (A), PA1 (C) an electrically conductive covering layer having a surface resistance not exceeding 10.sup.4 ohms and being lower than that of the semiconductive resin layer (A), said covering layer being laminated to the other surface of said resin layer (A), and PA1 (D) optionally, a protective covering resin layer having a higher surface resistance than that of said covering layer (C) and a thickness of not more than 10 microns, said protective covering layer being laminated to said conductive covering layer (C); and a method for electric recording using said material. The use of said material permits recording at low voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.