Perfumed laundry detergent powders
US5840668A · kind A · utility
16Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Nov 14, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns perfumed, free flowing concentrated laundry detergent powders (concentrates), having a ratio of total solid constituents to total liquid constituents of less than 30:1, wherein the perfume is sorbed onto carrier particles which release at least 60% w/w/ of the perfume in the Perfume Release Test and which are inert as defined by the Perfume Stability Test. The invention also concerns perfume-on-carrier systems designed for perfuming free flowing concentrated laundry detergent powders. Preferably the carrier particles are inorganic and have a perfume content of at least 25% w/w.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.