Masterbatches for preparing composite materials with enhanced conductivity properties, process and composite materials produced
US10431347B2 · kind B2 · utility
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Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Mar 22, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2425/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A masterbatch for use in a process of preparing a composite material may contain a blend of a first amorphous polymer with carbon nanotubes. At least 5% by weight of carbon nanotubes may be present in the masterbatch, based on a total weight of the masterbatch. The masterbatch may exhibit a high load melt flow index HLMI1 of less than 40 g/10 min determined at 200° C. under a load of 21.6 kg according to ISO1133. The first amorphous polymer may have a melt flow index MFI1 of at least 10 g/10 min determined at 200° C. under a load of 5 kg according to ISO1133H.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.