Bleach compositions
US4681695A · kind A · utility
53Cited by
21References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Aug 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0039
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A bleach activator composition in the form of spray-dried granules having an inner core comprising water-soluble organic peroxyacid bleach precursor and a surface coating comprising a water-soluble or water-dispersible, inorganic hydratable material, and wherein the composition has a pH (1% aqueous solution) in the range from about 3 to about 8. The compositions have excellent storage stability and water dispersibility together with simplified processing. Bleach and laundry compositions containing the bleach activator are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.