Programmable pH buffers
US9550168B2 · kind B2 · utility
1Cited by
1References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 2015 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Sep 24, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A programmable pH buffer comprises a copolymer that changes pKa at a lower critical solution temperature (LCST) in water. The copolymer comprises a thermally programmable polymer that undergoes a hydrophobic-to-hydrophilic phase change at the LCST and an electrolytic polymer that exhibits acid-base properties that are responsive to the phase change. The programmable pH buffer can be used to sequester CO2 into water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.