Ionic liquid monomer for synthesis of friction reducer and methods thereof
US11746274B1 · kind B1 · utility
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Key dates
| Filing date | Feb 25, 2022 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Feb 25, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition includes an ionic liquid monomer having the following structure: where n is an integer from 1 to 5 and the ionic liquid monomer has a melting point less than 100° C. A method of making the ionic liquid includes providing a mixture comprising a sulfonic acid and a diamine in a solvent, and maintaining the mixture at a temperature ranging from 10 to 80° C. for a time ranging from 1 to 10 hours to form an ionic liquid monomer having a melting point less than 100° C. A method of making a polymer from the ionic liquid monomer is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.