Sodium phosphate composition and process
US4781855A · kind A · utility
5Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1988 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jan 13, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/062
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A particulate hydrated trisodium phosphate composition useful in heavy duty cleansers has a core and shell structure, the shell being of trisodium phosphate hexahydrate and the core comprising trisodium orthophosphate dodecahydrate and sodium hydroxide. The composition may be made by prilling to form an intermediate body with solid shell and a liquid or solid/liquid core followed by further cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.