Additive of cellulose nanofibrils or nanocrystals and a second polymer
US10781138B2 · kind B2 · utility
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3References
16Claims
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Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A wellbore treatment fluid comprising: a base fluid; and an additive comprising: a first polymer bundle selected from the group consisting of cellulose nanofibrils, cellulose nanocrystals, and combinations thereof; and a second polymer, wherein the second polymer attaches to the first polymer bundle by a non-covalent mechanism. A method of treating a portion of a wellbore comprising: introducing the treatment fluid into the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.