Conductive polymer-polyimide blends and method for producing same
US4855361A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Feb 22, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A conductive polymer blend which comprises mixing a polyimide with a base-type polymer containing carbon-nitrogen linkages, such as polyaniline, having a polyimide-like group covalently linked to nitrogen atoms of the base-type polymer. The conductive polymer blend is formed by first reacting a base-type non-conductive polymer containing carbon-nitrogen linkages, such as polyaniline, with a carbonyl anhydride, such as 3,3',4,4'-benzophenone tetracarboxylic dianhydride, to form a conductive polymer containing polyimide-like groups covalently linked to nitrogen atoms of the base-type polymer, mixing such conductive polymer with non-conductive polyimide in a suitable solvent, removing the solvent, and forming a conductive continuous phase blend of the polyimide and the conductive polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.