Method for the purification of natural vanillin
US10017444B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a natural vanillin, which is in the form of an amorphous solid of which the color, in ethanolic solution at 10% by weight, is less than or equal to 200 Hazen, preferably less than or equal to 100 Hazen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.