Cleaning article impregnated with detergent
US6376046B1 · kind B1 · utility
27Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24992
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cleaning article comprising a detergent-retaining layer containing a hydrophobic material and detergent gradual-releasing layers having a higher density than the detergent-retaining layer, and the detergent-retaining layer is sandwiched between the detergent gradual-releasing layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.