Sugar derivatives containing both long and short chain acyl groups as bleach activators
US5688757A · kind A · utility
2Cited by
13References
3Claims
0Family size
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Key dates
| Filing date | Jan 7, 1994 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Jan 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H15/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Certain sugar derivatives have bleach-activating effect both on "hydrophilic" stains (e.g. tea or red wine) and on "hydrophobic" stains (e.g. grass or tomato sauce). The compounds in question are derivatives of pentoses or hexoses, having a long-chain acyl group and one or more short-chain acyl or aroyl groups attached through ester bonds. Optionally, a short-chain alkyl group is attached through a glycosidic bond. These compounds are non-toxic and biodegradable, and can conveniently be prepared by methods known in the art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.