Polymeric compositions comprising VDF polymers and graphite
US12152137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2019 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polymeric composition comprising: one or more vinylidene fluoride (VDF) polymers, from 1 to 100 parts, preferably from 2 to 50 parts, more preferably from 2 to 30 parts, even more preferably from 3 to 20 parts by weight for 100 parts of VDF polymer of a plurality of particles of graphite, wherein said particles of graphite have an D90 particle size as measured with laser scattering of less than 50 μm, preferably from 2 to 30 μm more preferably from 2 to 20 μm, even more preferably from 2 to 10 μm and a BET specific surface of from 10 to 50 m2/g, preferably 15 to 35 m2/g. The invention also relates to tubular articles comprising the composition and to their use in oil and gas operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.