Encapsulates containing surfactant for improved release and dissolution rates
US5480577A · kind A · utility
24Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0039
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Wax-encapsulated particles having a core particle or an aggregate of core particles selected from the group of an organic peroxy acid, a diacyl peroxide, an inorganic peroxygen compound, a bleach catalyst, a peroxygen bleach precursor and mixtures thereof together with 0.01% to about 5% by weight of a surfactant. The resulting particles exhibit release rates from their capsules and dissolution rates comparable to uncoated core materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.