Process for preparing a conductive composition using a masterbatch
US9761350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/019
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composition can include polystyrene, modified-polystyrene, or a mixture thereof. The polystyrene, modified-polystyrene, or mixture thereof can include carbon nanotubes. The composition can also include a polyolefin. The composition can include at most 1.90% by weight of carbon nanotubes, based on a total weight of the composition. The composition can be prepared by providing a masterbatch including at least 5% by weight of carbon nanotubes based on a total weight of the masterbatch, and a polyolefin and/or styrenic copolymer. The masterbatch can be blended with polystyrene, modified-polystyrene, or a mixture thereof, and with a polyolefin, in amounts such that a conductive composition is obtained. An article can be made of the conductive composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.