Biological buffers with wide buffering ranges
US7635791B2 · kind B2 · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 2008 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | May 9, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/088
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.