Encapsulated bleach particles
US5747441A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An encapsulated bleach particle is provided, comprising (a) 1-30% by weight of a coating including a gelled polymer material (as herein defined); (b) 99-70% by weight of a core material selected from the group consisting of a peroxygen bleach compound, a bleach catalyst, and a bleach precursor. This particle was found to have both favourable storage stability and good solubility characteristics. Furthermore, a process for producing encapsulated particles having said composition is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.