Detergent additive absorbed into a porous hydrophobic material having a hydrophobic coating
US5494600A · kind A · utility
12Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1995 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Feb 8, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/525
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a detergent additive comprising a water-soluble or water-dispersible detergent active compound such as enzyme characterized in that said compound is mixed with a surfactant before absorption into a porous hydrophobic material such as silica, said porous material subsequently being coated with a hydrophobic material such as silicone oil. Detergent compositions containing said additive are also encompassed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.