Masterbatches for preparing a composite material based on semi-crystalline polymer with enhanced conductivity properties, process and composite materials produced therefrom
US10550231B2 · kind B2 · utility
0Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | May 23, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/011
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a masterbatch for use in a process of preparing a composite material comprising a blend of a first semi-crystalline polymer with at least 5 wt % carbon nanotubes. Good dispersion of the carbon nanotube is obtained within the masterbatch and evidenced by the blending of the masterbatch with a second semi-crystalline polymer miscible with the first one in respective proportions to obtain a composite material containing about 1 wt % of carbon nanotubes wherein said composite material yields an agglomerate area fraction U % lower than 2 and a surface resistivity lower than 105 ohm/sq.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.