Detergent powders and process for their preparation
US5151208A · kind A · utility
16Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Mar 26, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D11/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Detergent powders built with sodium carbonate and having improved flow properties are prepared by a process in which a selected acid, for example, succinic acid or alkylbenzene sulphonic acid, is added to a slurry in order to transform sodium carbonate into needle-like crystals of sodium sedquicarbonate, and the slurry is then dried, preferably spray-dried, to form a powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.