Method for extracting malodorous compounds present in a formulation containing at least one compound carrying a thiol group and deodorized compositions thus obtained
US5843420A · kind A · utility
14Cited by
6References
7Claims
0Family size
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Key dates
| Filing date | Jan 18, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jan 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C319/28
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Method for extracting malodorous compounds present in a liquid formulation containing at least one compound bearing a thiol functional group of formula: EQU HS--A--Y--B (I) in which said formulation is placed in contact with a pulverulent absorbing agent, in order to obtain a deodorized composition, intended for a subsequent use, said absorbing agent being such that, when it is suspended in an aqueous solution containing 92 g/l of thioglycolic acid, said aqueous solution also contains at least 30% by weight of the initial thioglycolic acid after contact for 15 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.