Crystalline particles of glutamic acid N,N-diacetic acid
US9815773B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 12, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to glutamic acid N,N-diacetic acid (GLDA) of the formula GLDA-YmHn, wherein m is less than 0.5, n+m=4, Y is a monovalent cation that is not a proton, in the form of crystals, a process to make these crystals, and their uses, in particular in detergent compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.