Hydrocarbon swelling particles for wellbore cementing
US12286586B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Nov 12, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Hydrocarbon swelling particles for wellbore cementing include a crosslinked polymer comprising vinyl aromatic monomer and/or (meth)acrylic monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.