Bleaching agent
US5336433A · kind A · utility
7Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jun 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to particles having a core comprising a peroxy compound and a hydrophobic coating comprising: PA0 (a) a hydrophobic substance selected from saturated fats, waxes or phosphatides; PA0 (b) a surfactant dissolved in the hydrophobic substance; PA0 (c) water swellable grains; the hydrophobic substance and the surfactant being substantially inert in respect of the peroxy compound. The invention also relates to preparation and use of the particles. Further, the invention relates to a composition containing such coated particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.