Conductive particles containing carbon black and processes for the preparation thereof
US5883176A · kind A · utility
16Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | May 27, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Conductive polymeric particles can be formed by mixing a monomer, carbon black and a block copolymer, wherein the block copolymer contains an A block that is miscible with said monomer and a B block that anchors to the surface of the carbon black, such as polystyrene or a derivative of polystyrene. A polymerization initiator is added to the mixture and bulk polymerization is effected until about 5 to about 30 weight percent of the monomer has been polymerized. This partially polymerized product is then dispersed in water and further polymerized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.