Conductive plastic composite and its preparation and use
US5158707A · kind A · utility
9Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1990 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Sep 27, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to the homogenization of mixtures of internally conductive polymers like 3-substituted polythiophene and matrix polymers. With an efficient homogenization the conductivity is improved when the portion of the conductive polymer is low. An efficient homogenization is achieved in the invention by mixing the internally conductive polymer with a monomer or by dissolving it into it, after which the monomer is polymerized. The plastic composites so obtained are used for several purposes in which conductivity is needed, such as EMI and ESD shielding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.