Method of manufacturing electrically conductive pressure-formed plates comprised of plastic material
US4937015A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Aug 24, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of manufacturing plastic, electrically conductive pressure-formed plates from thermoplastic plastic particles which are mechanically formed. In this method, mechanically formed, thermoplastic particles each particle having maximum particle diameter in the range of about 1 mm to about 10 mm in the middle of said particle, are mechanically mixed with an amount of at least one electric-current-conducting substance sufficient to provide electrical conductivity. The electric-current-conducting substance is furnished in the form of a plurality of particulate, electrically conducting solid bodies, said mixing being effected in the temperature region below the glass temperature (Tg) of the thermoplastic plastic material of which the thermoplastic particles are comprised. The mixture thus produced is compressed to form plastic pressure-formed plates by means of a pressure-forming device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.