Process for preparing APG's
US5527892A · kind A · utility
45Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H15/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved method for synthesizing alkylpolyglucosides comprising reacting a glycoside with a long-chain alcohol in the presence of a novel type of catalyst, constituted by an alkali or aryl sulfonic acid, wherein the sulfonic group is sterically hindered. Using these catalysts, a raw product is obtained which is practically free from byproducts. The resulting alkyl polyglucosides are completely biodegradable surfactants and can be used to formulate detergents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.